1, using imports chip,the use of security, environmental protection 2, intellective time delay 3, long life 4, design novel PIR SENSOR Technical parameters: ... : PC or ABS;Packing: 100pcs/ctnProduct character: 1. Automatic human sensitivity: The light will be lighted when some body comes, and ... detecting area. 6. Auto-through the taking light, it is not working in day time. It is working at night or ...