Wireless door sensor(high reliable dual sensor)
USD $5.6 - $8.2 /Set
Min.Order:50 Sets
Shenzhen Kaihong Electronics Co., Ltd.
1)Wireless frequency: 315MHz/433MHz.
2)wireless distance: 100m open area
3)installation please assure the two parts be closely fixed, the gap not more than 1.0cm. the two parts should not closely mounted on the surface of metal materials, otherwise the distance will be shorter.
4)RF power radiation : less than 10mW