Heat detector SR-503 Series

SR-503-2 2-Wire network heat detector

SR-503-4 4-Wire network heat detector

Main Features:

Combination rate-of-rise and fixed temperature alarm

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

Remote LED indicator output (2 wire)

Rustproof, mothproof, anti-light interference design

Execute criterion: GB4716, EN54-5