Shop USI Smoke & Fire Alarms

HomElectrical carries USI's innovative smoke and fire alarms to ensure your family's safety. These detectors are available in multiple models, including universal smoke sensing technology, photoelectric, and ionization models. For the best deals on USI's smoke and fire alarms, shop at HomElectrical!

1-30 of 30 products

Hardwired Ionization Smoke Detector and Fire Alarm
1204
The USI 1204 Model is a direct replacement for the 1204A, 1208, 1209, 1213, and the SS-790 alarm models. It includes a 9V Battery Backup and can be interconnected with up to 18 other units.
Discontinued
Advanced Intelligence Smoke & Fire Alarm, 10 Year Sealed Battery
AMI3051SB
USI Electric's 2-in1 Sensing Plus smoke and fire alarm provides 10 years of continuous protection against deadly threats in the home. It provides the benefits of both photoelectric and ionization alarms in one device. Shop more at HomElectrical today!
$21.97Each
Ionization Smoke Alarm & Strobe Kit, Hardwired
2453
USI Electric's Ionization Smoke Alarm & Strobe Kit hardwires and features a strobe that maintains a constant 1 Hz flash rate. Shop HomElectrical to find more smoke and fire alarm options from USI Electric!
$99.99Each
Strobe Kit w/ USI-MP116S, USI-960, and USI-2177
2416S
USI Electric's Strobe Kit includes the relay module USI-960, USI-MP116S Smoke Alarm, and USI-2177 strobe light for all your installation needs. Shop HomElectrical for more products today!
$114.99Each
LED Smart Strobe, Interconnectable, Hardwired
SLW127
USI Electric's LED wall mounted strobe light emits different flash patterns depending on the type of hazard it's alerting you to. Shop HomElectrical to find more smoke, fire, or carbon monoxide detectors and accessories from USI Electric!
$77.88Each
Smoke Alarm Strobe, 120V AC, Hardwired
2177
USI Electric's Smoke Alarm Strobe Light offers a constant 1 Hz flash rate and meets or exceeds ADA requirements. Shop HomElectrical to find more smoke alarm options today!
$49.99Each
Photoelectric Smoke Detector, Hardwired w/ 9V Battery
MP116S
Replacement for 3204 smoke detectorTamper proof10 year sealed batteryLithium-free batteriesConnect up to 24 compatible alarms and devicesEliminates low battery chirpsPhotoelectric...
$29.50Each
Photoelectric Smoke and Fire Alarm, 9V Battery Operated
SS-901-LR
Universal Security Instruments Battery-Operated Photoelectric Smoke and Fire Alarm Features: 9 volt battery operated Batteries permit continued use after power...
$17.99Each
IoPhic Smoke & Fire Alarm, 9V Battery Operated
MDS300B
Universal Security Instruments Universal Smoke Sensing Technology (IoPhic) Battery-Operated Smoke and Fire Alarm Features: Responds quickest to fast flaming fires...
$19.99Each
Ionization Smoke & Fire Alarm, Large Ring, 9V Battery Run
976LR
USI Battery Operated Ionization Smoke and Fire Alarm is battery operated with super-heavy duty battery included. Tamper resistant alarm with...
$9.50Each
Ionization Smoke and Fire Alarm, 9V Battery Operated
MI3050
USI Battery Operated Ionization Smoke and Fire Alarm effectively detects fast burning fires. Battery operated with 9V Alkaline battery and...
$13.50Each
loPhic Smoke & Fire Detector, 9V Battery Operated
MDS300L
Incorporating new universal smoke sensing technology, this loPhic smoke and fire alarm responds eighty-seven percent faster to slow, smoldering fires....
$27.99Each
Hardwired Ionization Smoke & Fire Alarm w/ Backup Battery
MI106
Smoke detectors are some of the most important safety features you can have in a building. Shop with Homelectrical through our selection of fire alarms today.
$14.99Each
Relay Module for Smoke and Fire Alarms
960
Universal Security Instruments Relay Module for Smoke and Fire Alarms is compatible with most USI electric and Universal security smoke...
$24.99Each
Smoke Detector & Fire Alarm w/ Ionization Sensor, Hardwired
5304
The USI 5304 model is a direct replacement for obsolete models 5204 and SS-2795. This alarm is equipped with a 9V Battery BackUp and can interconnect with all USI and Universal 120V alarms.
$11.50Each
IoPhic Smoke Detector & Fire Alarm
MDS107
Smoke detectors are some of the most important safety features you can have in a building. Shop with Homelectrical through our selection of fire alarms today.
$19.99Each
Ionization Smoke and Fire Alarm, Lithium 9V Battery
2975L
USI Lithium Battery Operated Ionization Smoke and Fire Alarm detects fast burning fires in ample time. Lithium battery with 10...
Discontinued
Portable Emergency Lighting System
HE-430
Automatic Emergency Lighting System are excellent for any emergencies. The lighting system stays fully charged and emergency ready because of...
Discontinued
Ionization Sensor Smoke Alarm, 9V Battery Operated
1122L
USI Battery Operated Smoke and Fire Alarm is powered by a 10 year Lithium battery. The Ionization sensor detects fast...
Discontinued
120V Wired In Heat Alarm with Backup Battery
2430
USI 2430Wired In Heat Alarm detects high temperatures and alerts any threats with a loud 85dB alarm. Backup battery ensures...
Discontinued
Smoke & Fire Alarms w/ Ionization Sensor
1209
USI 1209 smoke detector is excellent for the household or office. The smoke detector is rich in features which includes...
Discontinued
Photoelectric Smoke & Fire Alarm, 9V Battery Operated
SS-901-LR
USI photoelectric smoke detector and fire alarm detects fire in ample time, when they first begin to smolder. Photoelectric sensor...
Discontinued
Ionization Smoke & Fire Alarm, 9V Battery Operated, Portable
SS-770
Smoke detectors are some of the most important safety features you can have in a building. Shop with Homelectrical through our selection of fire alarms today.
Discontinued
Ionization Smoke Detector & Fire Alarm, Hardwire w/ Battery
5304L
Smoke detectors are some of the most important safety features you can have in a building. Shop with Homelectrical through our selection of fire alarms today.
Discontinued
Battery-Operated Ionization Smoke and Fire Alarm
SS-770-LR
Protect your home or business with a Universal Security Instrument smoke and fire detector. Shop HomElectrical's selection of smoke detectors today.
$6.15Each
9V Battery Operated Fire Alarm w/ Ionization Sensor
SS-770-6CC
USI Electric's 9V Battery Operated Ionization Smoke & Fire Alarms, featuring a dual chamber ionization sensor, detects any smoke or fire to protect you from any danger. Shop our full selection of USI Electric's products at HomElectrical.com today!
Discontinued
Ionization Smoke & Fire Alarm, Large Plate, 9V Battery
1227L
Smoke detectors are some of the most important safety features you can have in a building. Shop with Homelectrical through our selection of fire alarms today.
$6.50Each
Photoelectric Smoke Detector, 120V Hardwired w/ 9V Battery
MP117
Incorporating smart alarm technology, this smoke and fire alarm uses a photoelectric sensor. Features include a Quick Draw battery drawer,...
Discontinued
Photoelectric Smoke and Fire Alarm, 9V Battery Operated
MP308
USI Battery operated Photoelectric Smoke and Fire Alarm effectively detects smoldering fires. Photoelectric sensor resists nuisance and false alarms. Battery...
$19.50Each
Ionization Smoke and Fire Alarm, 9V Battery Operated
2975
USI Battery Operated Ionization Smoke and Fire Alarm resists nuisance and false alarms. Battery operated with easy access battery drawer...
$12.99Each
Need Assistance?