WebOct 21, 2024 · The D273THCS is a four‑wire smoke detector with a 135°F (57°C) heat sensor, an auxiliary relay, and a sounder. Features - 12 VDC or 24 VDC input - Designed for commercial or residential use - Four-wire application - Light-emitting diodes (LEDs) indicate the status of the chamber, power, and alarm WebDescription. This item is discontinued by supplier. There is no suggested replacement. Four-wire smoke detector with a 135F (57C) heat sensor, an auxiliary relay, and a sounder. …

D273 Series: Photoelectric Smoke and Heat Detectors

WebJul 4, 2010 · Bosch's D273THCS is photoelectric smoke and smoke and heat detectors in the sensors, smoke detectors category. Check part details, parametric & specs and … WebShop lowest prices on Bosch Four-Wire Smoke/Heat Detector with Auxiliary Relay and Sounder, D273THCS at cctvvideo.com. Quality surveillance equipment & accessories. fit holdings llc

Replacement for BOSCH D273THCS Battery - amazon.com

WebBosch D273THCS Four-Wire Smoke Detector with a 135F Heat Sensor, Auxiliary Relay, Sounder 85 dB at 10 ft. Horn, Photoelectric. The Bosch D273THCS four-wire … WebProduct Model: D273THCS; Product Name: Four-Wire Smoke/Heat Detector with Auxiliary Relay and Sounder; Brand Name: Bosch; Product Series: D273; Brand Name: Bosch; … WebThe D273 Family includes the following detector models: Sounders produce 85 dB at 10 ft (3 m). The trouble relay indicates both Dirty Smoke Chamber and/or Power Loss conditions. Each of the detector models is UL Listed and works with commercial fire protective signaling and household fire warning systems. can home office deduction create a loss