The basic Daitem 1 way kit will work up to 30m (100ft) when handset is located inside buildings etc. The front panel comes with a lead that wires into the transmitter (battery operated) removing the need for wiring to the front panel (in situations where this is impractical or impossible) The receiver is like a regular walk about phone, it plugs onto a wall mounted charger when not in use to keep the batteries charged (unit will operate for up to 3 days without a charge) There are other models available with integral coded access and proximity and for blocks of flats. (some systems do require mains power for the transmitter) |