NEW 433mhz Wireless Door Sensor for Wireless GSM Home Security Alarm System

Descripción

Features It will work with most standard security system. Pull out the antenna of the magnetic detecto: when the door or window is opened from the closed position, LED 1 will turn to red for 2 seconds, the magnetic detector will be triggered and will send alarming signal to the main unit. Indication of low battery: When the voltage of battery is less than 7.5V, LED 2 will straightly turn on red light. At this time, you nee to immediately change the battery. Launch Distance: 300 meters (open place) Operating Voltage: 12V Operating Frequency: 433MHz Encoding: Jump hat pin Size: 71 x 36 x 15(mm) / 2.8 x 1.4 x 0.6(inch ) Oscillation resistance jump cap options Power supply: Battery (12V DC included) The item only for 433Mhz! before you buying,pls check technology which is compatible or not!! Thanks very Much!! Package included: • 1 X wireless door sensor(Battery including)