D-Tech DHI-HY-SA20A Battery-Powered Standalone Smoke Alarm – Split Spectrum Sensor Technology – 85dBA Loud Alarm – CR123A Battery
Features :-
- Split-spectrum sensor technology
- Test and hush features in one single button
- Loud sound output over 85 dB(A) at 3 meters
- Low quiescent current consumption
- Surface-mount device (SMD) circuit board design
- Low battery warning signal