Click on the image to view the original image
China supplier wholesale 2 wire mechanical heat alarm detectors
China supplier wholesale mechanical heat detectors
Heat detector SR-502, SR-503 Series
SR-502-2/SR-503-2 2-Wire network heat detector
SR-502-4/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
Technical specification:
Model No. | SR-502-2/SR-503-2 | SR-502-4/SR-503-4 |
Operating voltage | DC 9V-35V | |
Static current | ≤50uA | 12mA(NC);2 mA (NO) |
Alarm current | 35mA(12V); 83 mA (24V) | 5mA(NC); 15 mA (NO) |
Alarm output | Remote LED indicator | Relay output |
Alarm temperature | Rate-of-rise alarm: temperature rising rate>8℃ | Fixed temperature alarms: 57℃(135℉) |
Installation | Ceiling mounted | |
Working environment | -10℃~+50℃, Humidity ≤95%RH | -10℃~+70℃ |
Dimension | 100*48mm | |
Product Pictures
Shenzhen SUMRING Technology Co. Ltd is a Hi-tech enterprise specialized in the research & development of security and fire alarm products, including PIR detector, smoke detector, gas leakage detector, Carbon Monoxide detector, fire alarm bell/strobe siren, manual call point, magnetic contact ,BT Module etc. Enter more