GS-WDS07 433Mhz Door sensor with open/close status

I measured the resistance on the REED and it gave me about 50 ohms.
The resistance on both connections after I removed the REED from the board is 1.5M ohms.
I put a 1.5M resistor between the two connections and connected the sensor but it did not help, if I put a resistor over 33K then no contact and still with the sensor is not a short sight to send the RF code.
I don’t really understand it, but I couldn’t really make the sensor a short character like the REED.
Do you have an idea or direction?