1) Automatically sound with a melody when somebody arrives at the wanted floor.
2) Ideal for placing in a lift's car of a building to remind you which floor you are on. 3) AU functions in one unit only, no wiring or adjustment required
4) Sensing distance up to 5MRated Current: 25-45mA
5) Rated Voltage: 24V/DC
6)Mounting Size: 102*64mm
bell, electric bell, electronic chime bell.
electronic chime bell