General Details

Main Features:

4-Wire network heat detector
MCU processing, eliminate false alarm
Low standby current
Anti-RFI &Anti-EMI
9-35VDC wide operating voltage range
LED flashing visible in 360 degrees direction
Power supply non-polar input
Rustproof, mothproof, anti-light interference design
Execute criterion: GB4716, EN54-5

Technical specification:

Model No.SR-503-4
Operating voltageDC 9V-35V
Static current12mA(NC);2 mA (NO)
Alarm current5mA(NC); 15 mA (NO)
Alarm outputRelay output
Alarm temperatureFixed temperature alarms: 57℃(135℉)
InstallationCeiling mounted
Working environment-10℃~+70℃
Dimension100*48mm