SITERLINK Fire Alarms Smoke Detectors Smoke Alarm Pack with Low Battery Warning 9V Battery Operated-Include- Photoelectric Fire Detector for Home Bed

The unit is a photoelectric smoke alarm device. With the photoelectric technology, it is more sensitive to detecting slow smolder fires which general thick, black smoke and may smolder for hours before bursting into flames. The smoke alarm device does not contain the radioactive material which is harmless to the environment. Feature: 1.EOL(End-of-Life) Warning & Low Battery Warning 2.Fault Mode & Silence Mode & No Disturb Mode 3.Test Button 4.Flash Alarm Indicator(red circle) 5.Certification: UL217 6.Photoelectric smoke alarm device Specifications: 1.Model Number: GS528 2.Power Source: DC 9V battery 3.Quiescent Current: < 5uA 4.Alarm Sensitivity: 0.1-0.19dB/m 5.Comply with standard: AS3786:2014 6.Alarm Current: < 30mA 7.Alarm Volume: >85dB(A) @ 3 meters 8.Low Voltage Threshold: DC 6.5-7.5V 9.Product service life: >10 years 10.Humidity Range: < 95% relative humidity (RH) 11.Temperature Range: 0? to 40? 12.Size: 100mm in diameter x 38.6mm depth More Detail See User Manual