433mhz Radio Frequency Magnetic Door Window Sensor

*This is a sensor, no sound

Variation explaination:

Single Channel: Signal transmission occurs only when the sensor detects separation (e.g., sends a signal when the door is opened).

Double Channel: Signal transmission occurs when the sensor detects separation and when the sensor detects combination/closure. Two different codes are used for these two actions (e.g., sends a signal when the door is opened and sends a different signal when the door is closed).

This is to use with the alarm system we sell, don’t simply buy it if you are not sure, not returnable, might not able to use it for other systems. If anything is not sure please ask before ordering.

Product parameters:

1. Working voltage: DC3V (CV2032 battery);

(Please prepare your own battery)

2. Working current: 12MA;

3. Transmitting frequency: 433MHZ;

4. Standby current: 3uA;

5. Signal distance: 80M(open area);

6. Coding type: Fixed code;

7. Magnetic sensor effective distance: Close <15mm; Open >30mm