USI Electric Hardwired 2-in-1 Universal Smoke Sensing Smoke and Fire Alarm with Battery Backup (MDS107)
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Regular: $29.95
Price: $23.05
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- Universal Smoke Sensing Smoke and Fire Alarm
- Responds 87% Faster to Slow Smoldering Fires
- Responds Quickest to Fast Flaming Fires
- 120 Volt AC Wired-In + 9 volt Alkaline Battery Operated
- Loud 85 db Alarm
- Microprocessor Eliminates Nuisance Alarms
- New Universal Smoke Sensing Technology
- Power and Alarm LED's
- Test/Silence Button
- Product End-of-Service Life Warning
- 2 Tamper Resistant Locking Features
- Battery Activation Tab
- Quick Draw Battery Drawer
- Interconnectable with up to 24 Compatible Devices
- Ideal for Homes, Apartments and Mobile Homes
- Listed to UL217 Standard
- California State Fire Marshal Approved
- 10 Year Limited Warranty
This alarm has additional automatic features including a self-diagnostics check to ensure proper operation, a sensitivity adjustment for changes in temperature or humidity and an end-of-service life warning that sounds when it's time to replace the battery. The 9-volt alkaline battery (included) continues protection in the event of a power outage. This alarm features a front-loading battery drawer for replacing the battery without removing the alarm from the bracket. Mount the bracket to any standard wiring junction box and use the large mounting base to cover imperfections in drywall. For maximum protection, install an alarm inside every bedroom, outside every sleeping area and on all levels of the dwelling. The USI Electric MDS107 Hardwired Universal Smoke Sensing Smoke and Fire Alarm comes with a 10 year limited warranty.
- Warranty: 10 Year Limited Warranty
- Alarms Power Source: 120 volt hardwired with battery backup (Battery Included)
- Alarm Sensor Type: Universal Smoke Sensing Technology (Ionization & Photoelectric)
- Manufacturing Credits: ISO 9001 certified factory, UL listed & CSFM listed
- Product Dimensions (W x H x D): 5.75 x 6.70 x 1.75 in.
- Product Weight: 0.67 lbs.
AC powered smoke alarms with battery backup will chirp indefinitely assuming AC power is present; if battery power is low, or battery is removed; until a fresh battery is installed. Approved replacement batteries are listed on the back of each smoke alarm and in the user's manual.
Certain model smoke alarms with a silence button (designed to silence the alarm during a nuisance alarm) may chirp to indicate the smoke alarm is in the silence mode. The chirp will stop after approximately 8 minutes and the smoke alarm will return to its normal operation.
If battery backup alarms and non-battery backup alarms and accessories are mixed in an interconnect system, all devices without battery backup WILL NOT operate during an AC power failure.
CAUTION: USI alarms and accessories should only be interconnected with other USI alarms and accessories. Connecting devices from another manufacturer to USI devices may result in nuisance alarms, failure to alarm, or damage to one or all of the devices in the interconnect system. All interconnected USI alarms should be powered by the same fuse or circuit breaker. Smoke alarms shall not receive their power from a circuit that is protected by a ground fault circuit interrupter. Improper connection will result in damage to the alarm, failure to operate, or a shock hazard.
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Customers Also Bought
114
Customer Reviews
5
Average score based on 26 reviews
USI Electric Hardwired 2-in-1 Universal Smoke Sensing Smoke and Fire Alarm with Battery Backup
Reviewed: 04/12/2021 by Ha N
Good service and delivery as promised.
Smoke alarm
Reviewed: 03/29/2021 by MARK S
Good value for dual unit for detection of 2 different types of fires. Also appreciate the added technology to not trigger a false alarm with common household situations. Easy to install with clearly written instructions.
Smoke detector
Reviewed: 01/30/2021 by Amir University of Massachusetts Medical school
Work well, easy to replace the old unit with this one.
Reviewed: 10/02/2020 by Rob Warner
Easy install.
Reviewed: 05/04/2020 by Bruce Provo
They are everything I hoped for.simple to install,look good,test easy and not to loud.fast delivery and good price.
Reviewed: 01/06/2020 by Beatriz Penshorn
Excellent service and delivery on time thanks very please to had a business with universalsecuritystore
Reviewed: 06/19/2019 by Dale Steadman
works great
Very Accurate Description
Reviewed: 02/22/2019 by Tom De Martini
This alarm really works. It does respond well to even a small amount of smoke. I accidentally burned some food on the stove top and the alarm about 20 feet away started blaring. The only thing to realize is the potential for the smoke to get trapped inside an interior compartment of the alarm itself. The alarm will keep blaring if you reinstall it. When this happens there is no way to blow out the trapped air and the alarm must be replaced by a new one. This, however, could be true for any smoke alarm. Overall this alarm does work very well.
Replacement
Reviewed: 01/01/2019 by Pietro Dova
Nice to see that the pin connection remains unchanged from 2011. But for some reason the clamping system has changed from prior model so the ceiling mount needs to be replaced with the new one provided to re-attach the unit to the ceiling.
Easy install
Reviewed: 12/22/2018 by Jake Repash
Easy install and so far have worked good without any false alarms.
