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: $22.00
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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
- Packaging: Easy Open Box Packaging
- 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
144
Customer Reviews
5
Average score based on 32 reviews
- Reviewed: 04/01/2022 by George L
Smoke & Fire Alarm Replacement
Our smoke alarms were 30 years old and needed replacing. I shopped around for a a device that was for smoke and fires and found this. I was at a better price than the direct replacement for my old alarm and did more. Easy to install.
- Reviewed: 02/07/2022 by Ha N
USI Electric Hardwired 2-in-1 Universal Smoke Sensing Smoke and Fire Alarm with Battery Backup
Excellent product and service
- Reviewed: 12/07/2021 by Ha N
USI Electric Hardwired 2-in-1 Universal Smoke Sensing Smoke and Fire Alarm with Battery Backup
This is the 2nd time buying these.
- Reviewed: 12/04/2021 by Wayne D
Solved My Problem
Was looking to replace 6 out of date smoke detectors after several 6 a.m. false alarms became an early morning headache for me and my family. Checked my local stores to look at different brands and what they offered, but decided it would be easier just to go back with USI. Chose this model because it was said to have the fewest false alarms while being able to accurately detect smoke and fire and so far it has not disappointed. Did have to hardwire this model because its plug specific, but it was not too difficult.
- Reviewed: 11/19/2021 by Ha N
USI Electric Hardwired 2-in-1 Universal Smoke Sensing Smoke and Fire Alarm with Battery Backup
Excellent
- Reviewed: 04/12/2021 by Ha N
USI Electric Hardwired 2-in-1 Universal Smoke Sensing Smoke and Fire Alarm with Battery Backup
Good service and delivery as promised.
- Reviewed: 03/29/2021 by MARK S
Smoke alarm
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.
- Reviewed: 01/30/2021 by Amir University of Massachusetts Medical school
Smoke detector
Work well, easy to replace the old unit with this one.
- Reviewed: 10/02/2020 by Rob Warner
Easy install.
Smoke sensor/fire alarm
These were 10 year replacement units for earlier model equipment which I purchased from you. Had to change the wired in connector, but it was a simple job. Very good quality and an improved battery replacement drawer. Very happy with my choice.