DC 9V-35V,Power supply non-polar input,Automatic reset and ... reset,Alarm temperature:57C(135F),Meets EN54-7,UL539 operating voltage:DC 9V~35V, Power supply non-polar input. standby current : 12mA ... ,eliminate false alarm. Relay output/LED indicator. SMT manufacture technology,high stability.Dustproof,mothproof and anti-light interference design. Infrared photoelectric ...