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Bosch Detection Systems Radionics

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D273 4 Wire Photoelectric Smoke Detector

D273 4 Wire Photoelectric Smoke Detector

$x.xx

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

$x.xx

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

$x.xx

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

$x.xx

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

$x.xx

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

$x.xx

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

$x.xx

Out of stock

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

D283 Photoelectric Smoke Detector Head w/135 heat

D283 Photoelectric Smoke Detector Head w/135 heat

$x.xx

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

$x.xx

Out of stock

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

D285DH Photoelectric Smoke Head for Duct Detector

D285DH Photoelectric Smoke Head for Duct Detector

$x.xx

Out of stock

Bosch/Detection Systems replacement Photoelectric Smoke Detector Head for Duct Detector. This item is also known as DS25…

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