MATERIAL: ABS & Plastic TYPE: Automatic detector WEIGHT: N/A SERVICES Supply, Installation, Verification and Maintenance. COLOUR: White FEATURES: Smart self-test function, malfunction and low battery warning It will make you know the Fire detector work normally Features convenient with Silence/Test button and Hush Mode blinking light and 85-decibel alarm when detect smoke Help you can escape Fire timely. Battery does not need to be replaced, will last for 10 years under normal operating conditions. Automatic detector Supply, Installation, Verification and Maintenance.