ER9V 10-year lithium battery included
Smoke and Carbon Monoxide Combo Detector (PW-521SC)
- Photoelectric sensing technology - Detects slow smouldering fires & any build up of carbon monoxide.
- Sleek low-profile housing design
- Test button verifies battery and alarm operation.
- Easy installation, no wiring required
- Alarm decibel: 85dB at 10 feet (3 meters)
- Material: ABS plastic. Size: Dia.125mm Height 38.5mm
- Power supply: ER9V 10-year lithium battery included (Not mains powered, on packaging it says they are but this is a printing mistake)
- Smoke sensitivity: conform to EN14604 standard