48VDC Wired Smoke detector is a safety device to detect smoke, and prevent fire. When it detect smoke, the detector sent a relay signal to fire alarm system to remind with LED lit on. It used for Telecom or China Mobile's machine room or computer room of factory or electric power.

Features:
* 4 wire interconnection
* 48V DC powered
* Frosting plastic
* High sensitivity
* To Set NC or NO

Description:
* Working voltage: DC48V
* Static current:: <2mA
* Alarm current: <10mA
* Working temperature: -10 ~ 50 C; Working humidity: <95%RH
* Alarm output: Relay output
* Package Size: 110mm*110mm*55mm
* Carton Size: 58.5cm*42.5cm*30.6cm
* Qty/CTN: 108PCS/CTN
* Net Weight: 19.80Kgs
* Gross Weight:21.80Kgs

If interested, please contact us. We will supply 4 wire smoke fire detector with attractive design and reasonable price.