This is a BS /TUV photo-electric smoke detector with a built-in radio transmitter. The smoke detector portion is powered by its own 9V battery with separate low battery indication and test button. The radio portion also has it's own battery and test button. Range is anywhere between 20 and 80 meters, depending upon location and background environment, but can be extended using Keystone's HRP-006A repeater. Up to 5 repeaters can be used in any one system.
The HSD006 is fully compatible with Keystone's 006 range of transmitter and receivers and RF Control Panel.