Place of Origin | Guangdong, China | Brand Name | SUMRING |
Model Number | SR-821THS | Certification | CE |
Model number | SR-821THS | Operating voltage | 3*1.5V AA battery (3 AA 1.5V) (battery is not included) |
Quiescent current | Less 80uA | Installation | Wall or Ceiling mounted |
Alarm current | Less 30mA | Alarm output | Sound and light tips |
Working humidity | Relative humidity 10%-95% | Smoke sensitivity | 0.1% db/m-9.9% db/m |
Battery display | Low battery alarm | Dimensions | 104*39mm |