SMT manufacture technologyLow standby currentAnti-RFI & anti-EMI9-35VDC wide operating voltage rangeLED visible in 360 degrees directionPower supply non-polar inputRemote LED indicator output(2 wire)Execute criterion:GB4716 ; EN54-5 ; UL521Operating voltage: DC 9-35VStatic current:50UaAlarm current:22mA@12V;40mA@24VAlarm output: Relay output; LED indicatorAlarm temperature:57℃±3Operating temperature: :-10℃~+50℃Dimension: ¤104*51mm