433mhz Radio Frequency Magnetic Door Window Sensor

*This is just the sensor itself, need to use with other product, not working alone.
*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).

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

Return Policy
For a change of mind return, the item needs to be returned in its original, completely unused, and resellable condition, including the box, packaging, and all accessories. For returns due to other reasons, please contact us before raising a return request.