Emos H-518D White

Set of wireless doorbells for your home, apartment or office. In short, they fit everywhere you want to know about incoming visitors. Its advantage is an extra easy installation. Just insert the batteries into the trigger button and the bell itself and place the button and the bell in the right place. The wireless design saves you from using cables. The button is waterproof, so it can be safely left in the rain for example on the gate. Pairing is automatic. In a free space, the wireless signal reaches up to 100 metres, and you can choose one of 48 melodies to your liking.
Parameters and Specifications:

Wireless transfer:
Transmission: at 433MHz
Range: up to 100m in free space

Properties:

Number of melodies: 48
Pairing functions: automatic pairing between the doorbell and the button
Memory for paired bells in case of a bell power failure
Optical signalling of ringing for both the button and the doorbell
Waterproof button - IP44 protection

Power supply:
Doorbell: 3 x 1.5V AAA (not included) or power supply 5V, 150mA (not included)
Buttons: 1 x 12V (A23) (included)