◆Installation: Ceilling-mounted;
◆Power: 3.6V lithium battery;
◆Ways:Photoelectroic sensor;
◆Have Test button;
◆Reset: Auto-reset after trigger
◆Open distance: 100-150M;
◆Chip IC: 2262 and 1527 IC Option;
◆Wireless freq: 433Mhz;
◆Batteries & Screws included;