There is no cable between the button and the receiver of the wireless doorbell. The button goes by the door and the receiver sits inside, no building work.
Does the chime ring every time someone passes?
Yes, it reacts to anyone passing the sensor, coming in or going out. Aim it at the entrance rather than the street to avoid needless rings.
Is it a burglar alarm?
No, both devices announce an arrival but sound no siren and send no alert to your phone. They are there to let you know, not to watch the premises.
Entrance doorbell and chime
This section brings together two simple products to let you know when a visitor or a customer arrives.
Wireless remote-controlled doorbell: the button goes by the door with no cable to run, and the receiver rings inside. Handy for a house, a flat or an office.
Motion-sensor chime: it rings as soon as someone passes in front of the sensor. Ideal at the entrance of a shop, a boutique or a practice to know when a customer walks in.
To see who is there and keep the footage, pair them with a camera. See wireless cameras.