Kidde Smoke Detector, AA Battery-Powered, 20SDR, 1 Pack | LED Status Lights and Loud 85 dB Alarm, Ideal for Homes and Apartments

$29.97

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Kidde Smoke & CO Detector, Hardwired & 10-Year Battery, 30CUA10, 1 Pack | Wired Interconnect Capability & No Battery Replacements with Smoke & Carbon Monoxide Detection, Ideal for Homes & Apartments

$69.97

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Kidde Heat Detector, Hardwired with Battery Backup & 2 LEDs, Interconnect Capability, Ideal for Garages

$42.97

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BRK First Alert 9120BFF/ SMI100-AC Smoke Detector, Hardwired Alarm with Battery Backup, White, 1-Pack

$27.12

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Yuuhseel 10PCS LM393 Fire Source Detection Module Flame Detector Sensor for Fire Alarm Systems

$9.99

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First Alert SMI100-AC, Hardwire Interconnect Smoke Alarm with Battery Backup, 12-Pack

$183.99

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Fire Detection & Suppression Systems, 4th Edition by International Fire Service Training Asso (2011-05-03)

$9.06

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First Alert Hardwire Smoke Alarm | SMI100-AC, 9V Battery Backup, 1-Pack

$19.49

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QWORK Wired Emergency Sound and Light Fire Alarm Station, 12 / 24V DC Wired Strobe Siren Horn and Dual Action Manual Call Point Panic Button 9-28VDC with 2 Keys

$21.47

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Fire Detection and Suppression Systems: 3rd (Third) edition

$76.57

Amazon.com