SPECIFICATION
| SENSOR TYPEPhotoelectric |
| POWER SUPPLY3V Sealed battery |
| BATTERY LIFE10 Years |
| AUDIO ALARM≥85dB/3m |
| WORKING TEMPERATURE4.4°C~37.8°C(40°F~100°F) |
| WORKING HUMIDITY≤95%RH(no condensation) |
| PLASTIC MATERIALABS+PC,UL94 VO fire retardant |
| DIMENSIONS125*125*37.5 mm |
| INSTALLATION POSITIONSWall mounting/Ceiling mounting |
| MOUNTING TYPEMounting bracket |
| CERTIFICATIONUL217(10th ed.) |
DOP-HM-638PHW-AC&HM-638PHM-AC：https://www.heimantech.com/product/common/upload/2025/08/21/20250821111104fL.pdf
