Motion Sensor: 9.2 x 5.3 x 6.3cm
For both battery operated receiver and plug-in receiver, you just need power off the product, and press and hold the melody selection button, then plug in receiver or put back the battery into receiver battery compartment, then hold the button for 10 seconds. All pairing codes will be clear.
You can start to pairing the necessary bell push button and receiver now.
Please click below to download the manual.