brk 83r smoke detector manual LINK 1 ENTER SITE >>> http://gg.gg/12gti3 <<< Download LINK 2 ENTER SITE >>> http://chilp.it/f76767a <<< Download PDF File Name:brk 83r smoke detector manual.pdf Size: 2543 KB Type: PDF, ePub, eBook Uploaded: 24 May 2019, 20:51 Rating: 4.6/5 from 674 votes. Status: AVAILABLE Last checked: 19 Minutes ago! eBook includes PDF, ePub and Kindle version In order to read or download brk 83r smoke detector manual ebook, you need to create a FREE account. ✔ Register a free 1 month Trial Account. ✔ Download as many books as you like (Personal use) ✔ Cancel the membership at any time if not satisfied. ✔ Join Over 80000 Happy Readers brk 83r smoke detector manual Units are easy to install, and do not require professional installation. They do not operate Units must be installed by a qualified electrician. Units must be installed by a qualified electrician. They do not operate if electricity fails. Units must be installed by a qualified electrician. If you are unsure which type of unit to install, refer to Chapter 2 of the National Fire Protection Association (NFPA) Standard 72 (National Fire Alarm Code) and NFPA 101 (Life Safety Code). National Fire Protection Association, One Batterymarch Park, Quincy, MA 02269-9101. Local building codes may also require specific units in new construction or in different areas of the home. It is not a suitable substitute for complete fire detection systems in warehouses, industrial facilities, commercial buildings, and special-purpose non- residential buildings which require special fire detection and alarm systems. Depending on the building codes in your area, this smoke alarm may be used to provide additional protection in these facilities. Refer to NFPA 72 (National Fire Alarm Code) or NFPA 101 (Life Safety Code), local building codes, or consult your Fire Department for detailed fire protection requirements in buildings not defined as “households.” It is recommended smoke alarms be installed on every This smoke alarm is suitable for This smoke alarm is suitable for use in This smoke alarm is suitable for use inside individual However, like any warning device, smoke alarms can only work if they are properly located, installed, and maintained, and if smoke reaches them. They are not foolproof. AC units cannot work if the AC power is cut off for any reason (open fuse or circuit breaker, failure along a power line or at a power station, electrical fire that burns the electrical wires, etc.). If you are concerned about the limitations of battery or AC power, install both types of units. http://anankidsacademy.com/userfiles/97-seadoo-gsi-manual.xml brk 83r smoke detector manual, brk 83r smoke detector manual code, brk 83r smoke detector manual download, brk 83r smoke detector manual pdf, brk 83r smoke detector manual instructions. That is why one unit should be installed inside each bedroom or sleeping area—especially if bedroom or sleeping area doors are closed at night—and in the hallway between them. This may not give you enough time to escape safely. That is why recommended minimum protection is at least one unit in every sleeping area, and every bedroom on every level of your home. Even with a unit on every floor, stand-alone units may not provide as much protection as interconnected units, especially if the fire starts in a remote area. Some safety experts recommend installing interconnected AC powered units with battery back-up (see “Other Features Of Smoke Alarms”) or professional fire detection systems, so if one unit senses smoke, all units alarm. Interconnected units may provide earlier warning than stand-alone units since all units alarm when one detects smoke. Sources of these fires may include paper burning in a wastebasket, or a grease fire in the kitchen. Sources of these fires may include cigarettes burning in couches or bedding. If you are installing this smoke alarm for use by others, you must leave this manual—or a copy of it—with the end user. This guarantee does not affect BRK Europe Ltd. If the indicator The detector may not sound What are some reasons smoke Smoke detectors will not work without power. AC powered smoke detec- Some examples If bedroom doors The loudness of the horn in your detector However, if the smoke detector is placed If the detector is placed on a different floor from You can interconnect smoke detectors Or, you can put in detection systems that Smoke detectors may not sense every kind of fire every Any of these parts Therefore, you must test your smoke detector weekly. Clean Be sure to have it repaired or In no case should a smoke detector be used. If you are installing this Smoke Alarm for use by others, you must leave this manual—or a copy of it—with the end user. Never smoke in bed. http://www.rewitex.pl/userfiles/97-seadoo-gsx-manual.xml 2) Keep matches or lighters away from children; 3) Stor e flammable materials in proper containers; 4) Keep electrical appliances in good condition and don ’ t overload electrical circuits; 5) Keep stoves, barbecue grills, fireplaces and chimneys gr ease- and debris-free; 6) Never leave anything cooking on the stove unattended; 7) Keep portable heaters and open flames, like candles, away from flammable materials; 8) Don ’ t let rubbish accumulate. Keep alarms clean, and test them weekly. Replace alarms immediately if they are not working properly. Smoke Alarms that do not work cannot alert you to a fire. Keep at least one working fire extinguisher on every floor, and an additional one in the kitchen. Have fire escape ladders or other reliable means of escape from an upper floor in case stairs are blocked.This unit monitors the air, and when smoke reaches its sensing chamber, it alarms. It can give you more time to escape before fir e spreads. This unit can ONL Y give an early warning of developing fires if it is installed, maintained and located where smoke can reach it, and wher e all residents can hear it, as described in this manual. This unit will not sense gas, heat, or flame. It cannot prevent or extinguish fires. Understand The Different T ype of Smoke Alarms Battery powered or electrical. Differ ent Smoke Alarms provide different types of pr otection. See “ About Smoke Alarms ” for details. Know Where T o Install Y our Smoke Alarms Fire Safety Professionals recommend at least one Smoke Alarm on every level of your home, in every bedroom, and in every bedroom hallway or separate sleeping area. See “ Recommended Locations For Smoke Alarms ” and “ Locations T o Avoid For Smoke Alarms ” for details. Know What Smoke Alarms Can and Can’t Do A Smoke Alarm can help alert you to fire, giving you precious time to escape. It can only sound an alarm once smoke reaches the sensor. See “ Limitations of Smoke Alarms ” for details. https://www.thebiketube.com/acros-daikin-brc1d51-manuale-italiano Check Y our Local Building Codes This Smoke Alarm is designed to be used in a typical single-family home. It alone will not meet requirements for boar ding houses, apartment buildings, hotels or motels. Smoke particles of varying number and size are produced in all fires. Ionization technology is generally more sensitive than photoelectric technology at detecting small particles, which tend to be produced in greater amounts by flaming fires, which consume combustible materials rapidly and spread quickly. Sources of these fires may include paper burning in a wastebasket, or a grease fire in the kitchen. Photoelectric technology is generally more sensitive than ionization technology at detecting large particles, which tend to be pr oduced in greater amounts by smoldering fires, which may smolder for hours before bursting into flame. Sources of these fir es may include cigarettes burning in couches or bedding. It is a single-station unit that cannot be linked to other devices. Air cur- rents around junction boxes can pr event smoke from r eaching the sensing chambers and prevent the unit from alarming. It is loud to wake you in an emergency. Paint may clog the openings to the sensing chambers and prevent the unit from operating pr operly.If you are installing this Smoke Alarm for use by others, you must leave this manual—or a copy of it—with the end user. You might accidentally damage or set fire to the unit or to your home. The built-in test switch accurately tests the unit’s operation as required by Underwriters Laboratories, Inc. (UL). If you choose to use an aerosol smoke product to test the Smoke Alarm, be certain to use one that has been Listed to Underwriters Laboratories, Inc. Safety Standards, and use it only as directed. https://jdleducation.com/images/canada-ices-003-class-b-motherboard-manual.pdf Page 4 RECOMMENDED LOCATIONS FOR SMOKE ALARMS AGENCY PLACEMENT RECOMMENDATIONS Installing Smoke Alarms in Single-Family Residences The National Fire Protection Association (NFPA), recommends one Smoke Alarm on every floor, in every sleeping area, and in every bedroom. In new construction, the Smoke Alarms must be AC powered and interconnected. See “Agency Placement Recommendations” for details. Page 5 ABOUT SMOKE ALARMS LIMITATIONS OF SMOKE ALARMS Battery (DC) operated Smoke Alarms: Provide protection even when electricity fails, provided the batteries are fresh and correctly installed. Units are easy to install, and do not require professional installation. Smoke Alarms have played a key role in reducing deaths resulting from home fires worldwide. However, like any warning device, Smoke Alarms can only work if they are properly located, installed, and maintained, and if smoke reaches them. Paint may clog the openings to the sensing chambers and prevent the unit from operating pr operly.With the cover open, remove and reinstall the battery so the terminals on the battery match the terminals on the smoke alarm. If the battery is not snapped in completely, the unit cannot receive battery power. The smoke alarm may beep briefly when you install the battery — this is normal. Once the battery is installed, the red power indicator light (behind the test button) will flash once a minute to show you the smoke alarm is working. 10. Close the cover all the way. 11. T est the smoke alarm. See “ W eekly T esting. ” This unit is designed to be mounted on the ceiling, or on the wall if necessary. The cover may unsnap from the base if it's opened too far. Mounting slots 5B. Mounting slots 6. Install 9V battery here The built-in test switch accurately tests the unit ’ s operation as required by Underwriters Laboratories, Inc. (UL). If you choose to use an aerosol smoke product to test the Smoke Alarm, be certain to use one that has been Listed to Underwriters Laboratories, Inc. https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/163430cc890f72---d-box-david-300-manual.pdf Products under warranty may be returned to the manufacturer for replacement. See “ Limited W arranty ” for details. DO NOT stand close to the alarm when the horn is sounding. Exposure at close range may be harmful to your hearing. When testing, step away when horn starts sounding. It is important to test this unit every week to make sure it is working properly. Using the test button is the recommended way to test this Smoke Alarm. Press and hold the test button on the cover of the unit until the alarm sounds (the unit may continue to alarm for a few seconds after you release the button). If it does not alarm, make sure the unit is r eceiv- ing power and test it again. If it still does not alarm, replace it immediately. During testing you will hear a loud, repeating horn pattern: 3 beeps, pause, 3 beeps, pause; and the Red LED will flash rapidly. NEVER ignore any alarm. Instead open a window or fan the smoke away from the unit. REGULAR MAINTENANCE This unit has been designed to be as maintenance free as possible, but there are a few simple things you must do to keep it working pr operly. Use only the replacement batteries listed below. The unit may not operate properly with other batteries. T est the Smoke Alarm. This low battery war n- ing should last 7 days, but you should replace the battery immediately to continue your protection. Choosing a replacement battery: Y our Smoke Alarm requires one standard 9V battery. Y ou may also use a Lithium battery like the Ultralife U9VL-J for longer service life between battery changes. These batteries are available at many local retail stor es. Actual service life depends on the Smoke Alarm and the environment in which it is installed. All the batteries specified above are acceptable replacement batteries for this unit. Regardless of the manufactur er ’ s suggested battery life, you MUST replace the battery immediately once the unit starts “ chirping ” (the “ low battery warning ” ). www.drpaullampl.com/userfiles/files/Diagnostic-And-Statistical-Manual-Of-Mental-Disorders-Adhd-Criteria.pdf IF YOU SUSPECT A PROBLEM Smoke Alarms may not operate properly because of dead, missing or weak batteries, a build-up of dirt, dust or grease on the Smoke Alarm cover, or installation in an improper location. Clean the Smoke Alarm as described in “ Regular Maintenance, ” and install a fresh battery, then test the Smoke Alarm again. If the Smoke Alarm is still not operating properly, and it is still under warranty, please see “ How to Obtain Warranty Service ” below. Model SA67B for a period of five years from the date of purchase. BRK, at its option, will repair or replace this pr oduct or any component of the product found to be defective during the warranty period. Replacement will be made with a new or remanufactured pr oduct or component. If the product is no longer available, replacement may be made with a similar product of equal or greater value. This is your exclusive warranty. This warranty is valid for the original retail purchaser fr om the date of initial retail purchase and is not transferable. Keep the original sales receipt. Proof of pur chase is requir ed to obtain warranty performance. BRK dealers, service centers, or retail stores selling BRK pr oducts do not have the right to alter, modify or any way change the terms and conditions of this warranty. This warranty does not cover normal wear of parts or damage resulting from any of the following: negligent use or misuse of the product, use on improper voltage or current, use contrary to the operating instructions, disassembly, repair or alteration by anyone other than BRK or an author- ized service center. Further, the warranty does not cover Acts of God, such as fire, flood, hurricanes and tornadoes or any batteries that are included with this unit. BRK shall not be liable for any incidental or consequential damages caused by the breach of any express or implied warranty. https://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/163430cf6e841c---d-copia-200mf-manual.pdf Except to the extent prohibited by applicable law, any implied warranty of merchantabili- ty or fitness for a particular purpose is limited in duration to the duration of the above warranty. Some states, provinces or jurisdictions do not allow the exclusion or limitation of incidental or consequential damages or limitations on how long an implied warranty lasts, so the above limitations or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights that vary from state to state or province to province. How to Obtain W arranty Service Service: If service is required, do not r eturn the product to your retailer. In order to obtain warranty service, contact the Consumer Affairs Division at 1-800-323-9005, 7:30 AM - 5:00 PM Central Standard Time, Monday through Friday. T o assist us in serving you, please have the model number and date of purchase available when calling. 303 Nelson Avenue, Neosho, MO 64850-8806. Battery: BRK Brands, Inc.If a door is cool, open it slowly. Don ’ t open a hot door. Alarms have various limitations.In new construction, the Smoke Alarms must be AC powered and interconnected. See “ Agency Placement Recommendations ” for details. For additional coverage, it is recommended that you install a Smoke Alarm in all rooms, halls, storage areas, finished attics, and basements, where temperatur es normally remain between 40. If your home has multiple sleeping areas, install a unit in each. Specific requirements for Smoke Alarm installation vary fr om state to state and from region to r egion. Check with your local Fire Department for current requir ements in your area. For more security, put one unit in each room. Many older mobile homes (especially those built before 1978) have little or no insula- tion. If your mobile home is not well insulated, or if you are unsure of the amount of insulation, it is important to install units on inside walls only. https://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/163430d13693a1---d-controller---as-language-reference-manual.pdf Smoke Alarms should be installed where temperatures normally r emain between 40. F (4 ? C) and 100 ? F (38 ? C). WARNING: T est units used in RVs after the vehicle has been in storage, before every trip, and once a week while in use. Failure to test units used in RVs as described may remove your protection. This equipment should be installed in accordance with NFP A (National Fire Protection Association) 72 and 101. National Fire Pr otection Association, One Batterymarch Park, Quincy, MA 02269-9101. Additional local building and regulatory codes may apply in your area. Always check compliance requirements befor e beginning any installation. AGENCY PLACEMENT RECOMMENDA TIONS NFP A 72 (National Fire Code) Smoke Alarms shall be installed in each separate sleeping room, outside each sleeping area in the immediate vicinity of the bedrooms and on each additional story of the family living unit, including basements and exclud- ing crawl spaces and unfinished attics. In new construction, Alarms shall be so arranged that operation of any one Alarm shall cause the operation of all Alarms within the dwelling. Smoke Detection-Are More Smoke Alarms Desirable. The r equired number of Smoke Alarms might not provide reliable early warning protec- tion for those areas separated by a door from the ar eas protected by the required Smoke Alarms. For this r eason, it is recommended that the householder consider the use of additional Smoke Alarms for those areas for increased protection. The additional ar eas include the basement, bed- rooms, dining room, furnace room, utility r oom, and hallways not protect- ed by the required Smoke Alarms. The installation of Smoke Alarms in kitchens, attics (finished or unfinished), or garages is not normally recom- mended, as these locations occasionally experience conditions that can result in improper operation. www.dqnjl.com/userfiles/files/Diagnostic-And-Statistical-Manual-Of-Mental-Disorders-5Th-Edition-Ebook-Pdf.pdf California State Fire Marshal (CSFM) Early warning detection is best achieved by the installation of fire detec- tion equipment in all rooms and areas of the household as follows: A Smoke Alarm installed in each separate sleeping area (in the vicinity, but outside bedrooms), and Heat or Smoke Alarms in the living rooms, dining rooms, bedrooms, kitchens, hallways, finished attics, furnace rooms, closets, utility and storage rooms, basements, and attached garages. Combustion particles form when something burns. Areas to avoid include poorly ventilated kitchens, garages, and furnace rooms. Keep units at least 20 feet (6 meters) from the sources of combustion particles (stove, furnace, water heater, space heater) if possible. The placement recommenda- tions are intended to keep these Alarms at a reasonable distance fr om a fuel-burning source, and thus reduce “ unwanted ” alarms. Unwanted alarms can occur if a Smoke Alarm is placed directly next to a fuel- burning source. Do not install a Smoke Alarm directly over the stove or range. Avoiding Dead Air Spaces “ Dead air ” spaces may prevent smoke fr om reaching the Smoke Alarm. T o avoid dead air spaces, follow the installation recommendations below. On ceilings, install Smoke Alarms as close to the center of the ceiling as possible. If this is not possible, install the Smoke Alarm at least 4 inches (102 mm) from the wall or corner. On a peaked, gabled, or cathedral ceiling, install the first Smoke Alarm within 3 feet (0.9 meters) of the peak of the ceiling, measured horizontally. Additional Smoke Alarms may be required depending on the length, angle, etc.Refer to NFP A 72 for details on require- ments for sloped or peaked ceilings. 4 Units are easy to install, and do not requir e professional installation. AC powered Smoke Alarms: Can be interconnected so if one unit senses smoke, all units alarm. They do not operate if electricity fails. AC with battery (DC) back-up: will operate if electricity fails, provided the batteries are fresh and corr ectly installed. Smoke Alarms for Solar or Wind Energy users and battery backup power systems: AC powered Smoke Alarms should only be operated with true or pure sine wave inverters. Operating this Smoke Alarm with most battery-powered UPS (uninterruptible power supply) products or square wave or “ quasi sine wave ” inverters will damage the Alarm. If you are not sure about your inverter or UPS type, please consult with the manufacturer to verify. Smoke Alarms for the hearing impaired: Special purpose Smoke Alarms should be installed for the hearing impaired. They include a visual alarm and an audible alarm horn, and meet the requirements of the Americans With Disabilities Act. Can be interconnected so if one unit senses smoke, all units alarm. All these Smoke Alarms are designed to provide early warning of fires if located, installed and cared for as described in the user ’ s manual, and if smoke reaches them. If you are unsur e which type of Smoke Alarm to install, refer to Chapter 2 of the National Fire Pr otection Association (NFP A) Standard 72 (National Fire Alarm Code) and NFP A 101 (Life Safety Code). National Fire Protection Association, One Batterymar ch Park, Quincy, MA 02269-9101. Local building codes may also require specific units in new construction or in different ar eas of the home. SPECIAL COMPLIANCE CONSIDERA TIONS This Smoke Alarm alone is not a suitable substitute for complete fire detection systems in places housing many people — like apartment buildings, condominiums, hotels, motels, dormitories, hospitals, long-term health care facilities, nursing homes, day care facilities, or gr oup homes of any kind — even if they were once single-family homes. It is not a suitable substitute for complete fire detection systems in warehouses, industrial facilities, commercial buildings, and special-purpose non-residential build- ings which require special fir e detection and alarm systems. Depending on the building codes in your area, this Smoke Alarm may be used to provide additional protection in these facilities. Refer to NFP A 72 (National Fire Alarm Code) and NFP A 101 (Life Safety Code), local building codes, or consult your Fire Department for detailed fire protection r equirements in buildings not defined as “ households. ” 1. Single-Family Residence: Single family home, townhouse. It is recommended Smoke Alarms be installed on every level of the home, in every bedroom, and in each bedroom hallway. 2. Multi-Family or Mixed Occupant Residence: Apartment building, condominium. This Smoke Alarm is suitable for use in individual apartments or condos, provided a primary fire detection system already exists to meet fire detection r equirements in common areas like lobbies, hallways, or porches. LIMIT A TIONS OF SMOKE ALARMS Smoke Alarms have played a key role in reducing deaths r esulting from home fires worldwide. However, like any war ning device, Smoke Alarms can only work if they are properly located, installed, and maintained, and if smoke reaches them. They are not foolpr oof. Smoke alarms may not waken all individuals. Allow children to master fir e escape planning and practice before holding a fire drill at night when they ar e sleeping. If children or others do not readily waken to the sound of the smoke alarm, or if there are infants or family members with mobility limitations, make sure that someone is assigned to assist them in fire drill and in the event of an emergency. It is recommended that you hold a fire drill while family mem- bers are sleeping in order to determine their r esponse to the sound of the smoke alarm while sleeping and to determine whether they may need assistance in the event of an emergency. Smoke Alarms cannot work without power. Battery operated units can- not work if the batteries are missing, disconnected or dead, if the wrong type of batteries are used, or if the batteries are not installed corr ectly. AC units cannot work if the AC power is cut off for any reason (open fuse or circuit breaker, failure along a power line or at a power station, electrical fire that burns the electrical wires, etc.). If you are concerned about the limitations of battery or AC power, install both types of units. Smoke Alarms cannot detect fires if the smoke does not reach the Alarms. Smoke from fires in chimneys or walls, on r oofs, or on the other side of closed doors may not reach the sensing chamber and set off the alarm. That is why one unit should be installed inside each bedroom or sleeping area — especially if bedr oom or sleeping area doors ar e closed at night — and in the hallway between them. Smoke Alarms may not detect fire on another floor or area of the dwelling. For example, a stand-alone unit on the second floor may not detect smoke from a basement fire until the fir e spreads. This may not give you enough time to escape safely. That is why recommended minimum protection is at least one unit in every sleeping area, and every bedroom on every level of your dwelling. Even with a unit on every floor, stand-alone units may not provide as much protection as inter connected units, especially if the fire starts in a remote ar ea. Some safety experts recommend installing interconnected AC power ed units with battery back-up (see “ About Smoke Alarms ” ) or professional fir e detection sys- tems, so if one unit senses smoke, all units alarm. Interconnected units may provide earlier warning than stand-alone units since all units alarm when one detects smoke. Smoke Alarms may not be heard. Though the alarm horn in this unit meets or exceeds current standards, it may not be hear d if: 1) the unit is located outside a closed or partially closed door, 2) residents recently con- sumed alcohol or drugs, 3) the alarm is drowned out by noise from ster eo, TV, traffic, air conditioner or other appliances, 4) residents ar e hearing impaired or sound sleepers. Special purpose units, like those with visual and audible alarms, should be installed for hearing impaired residents. Smoke Alarms may not have time to alarm before the fire itself causes damage, injury, or death, since smoke fr om some fires may not reach the unit immediately. Examples of this include persons smoking in bed, children playing with matches, or fires caused by violent explosions resulting from escaping gas. Smoke Alarms are not foolproof. Like any electr onic device, Smoke Alarms are made of components that can wear out or fail at any time. Y ou must test the unit weekly to ensure your continued protection. Smoke Alarms cannot prevent or extinguish fires. They ar e not a substitute for property or life insurance. Smoke Alarms have a limited life. The unit should be replaced immediately if it is not operating properly. Y ou should always replace a Smoke Alarm after 10 years from date of purchase. Using the online preview, you can quickly view the contents and go to the page where you will find the solution to your problem with BRK electronic FIRST ALERT 83R. To start viewing the user manual BRK electronic FIRST ALERT 83R on full screen, use the button Fullscreen. However, if you do not want to take up too much of your disk space, you can always download it in the future from ManualsBase. The option to print the manual has also been provided, and you can use it by clicking the link above - Print the manual. You do not have to print the entire manual BRK electronic FIRST ALERT 83R but the selected pages only. paper. If you want to quickly view the content of pages found on the following pages of the manual, you can use them. This unit can ONLY give an early warning of developing fires if it is installed, maintained and located where smoke can reach it, and where all resi- dents can hear it, aDon’t open a In new additional story of the family living unit, including basHowever, like any warning device, Smoke Alarms Units are easy to install, and do not require professional installation. Your feedback is important to us and is greatly appreciated.It helps us serve you even better!It helps us serve you even better!All Rights Reserved. The CO smoke alarm is battery operated, allowing you to easily install it anywhere without requiring an electrician. The photoelectric sensor detects smoke produced by smoldering fires and minimizes false alarms from cooking smoke or shower steam. The electrochemical CO sensor helps to detect carbon monoxide leaks from multiple sources such as, faulty fuel-burning appliances. Lights on the CO smoke detectors face alert you to what the danger is, and a single button allows you to test the unit monthly or silence a false alarm easily. Dual Sensors Guard Against Danger Battery-Operated for Convenience Varying Frequency is Ideal for Hearing-Impaired The First Alert SCO5CN Combination Smoke and Carbon Monoxide Alarm detects both smoke and carbon monoxide in a single detector. The CO smoke alarm is battery operated, allowing you to easily install it. Dual Sensors Guard Against Danger The First Alert SCO5CN Combination Smoke and Carbon Monoxide Alarm features a photoelectric sensor that detects the smoke most commonly produced by smoldering fires, providing sensitive detection while minimizing false alarms from cooking or shower steam.