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Bosch Detection Systems Radionics

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D273 4 Wire Photoelectric Smoke Detector

D273 4 Wire Photoelectric Smoke Detector

$44.99

Out of stock

D273 Photoelectric Smoke and Smoke and Heat Detector 12 VDC or 24 VDC input Designed for commercial or residenti…

D273TH 4 Wire Photoelectric Smoke-Heat Detector

D273TH 4 Wire Photoelectric Smoke-Heat Detector

$46.99

Out of stock

D273TH Photoelectric Smoke and Smoke and Heat Detector 12 VDC or 24 VDC input Designed for commercial or residen…

D273THC Photoelectric Smoke-Heat Detector with Aux Relay

D273THC Photoelectric Smoke-Heat Detector with Aux Relay

$49.99

D273THC Photoelectric Smoke and Smoke and Heat Detector 12 VDC or 24 VDC input Designed for commercial or …

D274 12V Power Supervision Module

D274 12V Power Supervision Module

$12.99

D274 12V Power Supervision Module New with one year warranty

D275 DS end of line relay for 4 or 6 wire smoke detectors

D275 DS end of line relay for 4 or 6 wire smoke detectors

$9.99

Bosch D275 end of line relay. For 12 or 24 volt 4 or 6 wire smoke detector loops.  New in box with one year warranty…

D278S Radionics Bosch 12 volt zonex 4 wire base NOS

D278S Radionics Bosch 12 volt zonex 4 wire base NOS

$23.99

Addressable smoke detector base with a built in poppit.  Supports up to 240 addressable points.   Last one we have…

D280 24V 2 Wire 6" Base for Smoke Detectors

D280 24V 2 Wire 6" Base for Smoke Detectors

$12.99

Out of stock

24V 2 wire Detector Base for D262, D281, D282, D283, D265W and D266W Hochiki manufactured Smoke Detector Heads.  …

D282A 24V Photoelectric Smoke Detector Head

D282A 24V Photoelectric Smoke Detector Head

$44.99

Out of stock

Radionics D282A Photoelectric Smoke Detector.  New in box.   One year warranty.

D283 Photoelectric Smoke Detector Head w/135 heat

D283 Photoelectric Smoke Detector Head w/135 heat

$49.99

Out of stock

New Old Stock D283 Photoelectric Smoke Detector with 135 degree heat sensor.  Used with appropriate D280, D290,  D291 …

D285 DS250 photoelectric smoke detector head NOS

D285 DS250 photoelectric smoke detector head NOS

$59.99

Out of stock

These DS250 photoelectric smoke detector heads were renamed D285 heads and are used with the matching D277, D278S or D28…

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