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Universal Security Instruments

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10-Year Battery Combination Smoke and Carbon Monoxide Detector with Voice Alarm and LED Warning Light10-Year Battery Combination Smoke and Carbon Monoxide Detector with Voice Alarm and LED Warning Light
(4.2 / 63)
Model# USI/SMCO/10YR/V
$57.97
Was $64.97
Save $7.00 (11%)

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(3-Pack) 10-Year Battery Powered Mini Smoke and Fire Detector with Photoelectric Sensor(3-Pack) 10-Year Battery Powered Mini Smoke and Fire Detector with Photoelectric Sensor
(4.2 / 61)
Model# USI/SM/10YR/MINI/3
$79.97
($26.66 /unit)
Buy 4 or more $71.97

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Hardwired and 10-Year Battery Combination Smoke and Carbon Monoxide Detector with Voice Alert and LED Warning LightHardwired and 10-Year Battery Combination Smoke and Carbon Monoxide Detector with Voice Alert and LED Warning Light
(4.2 / 63)
Model# USI/SMCO/HW10YR/P
$69.97
Buy 4 or more $62.97

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(3-Pack) Hardwired & 10-Year Battery Backup Smoke Detector with Ionization Sensor(3-Pack) Hardwired & 10-Year Battery Backup Smoke Detector with Ionization Sensor
(3.6 / 18)
Model# USI/SM/HW10YR/3
$99.97
($33.32 /unit)
Buy 4 or more $89.97
(3-Pack) 10-Year Battery Powered Mini Smoke and Fire Detector with Photoelectric Sensor(3-Pack) 10-Year Battery Powered Mini Smoke and Fire Detector with Photoelectric Sensor
Model# USI/SM/10YR/MINI/3CA
$79.97
($26.66 /unit)
Buy 4 or more $71.97

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(3-Pack) 10-Year Battery Powered Smoke and Fire Detector with Ionization Sensor(3-Pack) 10-Year Battery Powered Smoke and Fire Detector with Ionization Sensor
(4.6 / 50)
Model# USI/SM/10YR/3
$79.97
($26.66 /unit)

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(3-Pack) Hardwired and 1-Year Replaceable Battery Backup Smoke Detector with Photoelectric Sensor(3-Pack) Hardwired and 1-Year Replaceable Battery Backup Smoke Detector with Photoelectric Sensor
Model# USI/SM/HWREP/3
$79.97
($26.66 /unit)
Buy 4 or more $71.97

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Hardwired and 3-Year Replaceable Battery Backup Combination Smoke and Carbon Monoxide Detector w/ Voice AlarmHardwired and 3-Year Replaceable Battery Backup Combination Smoke and Carbon Monoxide Detector w/ Voice Alarm
(4.4 / 27)
Model# USI/SMCO/HWREP
$64.97
Buy 4 or more $58.47

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Hardwired and 10-Year Battery Backup Smoke Detector with Ionization SensorHardwired and 10-Year Battery Backup Smoke Detector with Ionization Sensor
(4.2 / 36)
Model# USI/SM/HW10YR
$37.97

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9-Volt Battery Operated Smoke Detector with Photoelectric Sensor9-Volt Battery Operated Smoke Detector with Photoelectric Sensor
(4.4 / 65)
Model# USI/SM/REP
$15.97
Was $17.49
Save $1.52 (9%)

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Plug-In Carbon Monoxide Detector with 1-Year Replaceable Battery, Digital DisplayPlug-In Carbon Monoxide Detector with 1-Year Replaceable Battery, Digital Display
(4.8 / 22)
Model# USI/CO/PLUG
$39.97

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3-Year Replaceable Battery Combination Smoke and Carbon Monoxide Detector with Voice Alarm and LED Warning Light3-Year Replaceable Battery Combination Smoke and Carbon Monoxide Detector with Voice Alarm and LED Warning Light
(4.4 / 27)
Model# USI/SMCO/REP
$52.97
Buy 4 or more $47.67