1.Power supply non-polar input

2.Infrared photoelectric sensor

3.MCU processing, eliminate false alarm

4.REMOTE LED indicating alarm

5.SMT manufacturer technology, high stability

6.Dustproof, mothproof, anti-light interference design

7.Stainless steel shield in chamber, anti-RFI(20V/m-1GHz)

8.Execute criterion: GB4715,EN54-7, UL539

Technological details