Top critical review
Bell is power hungry - 19 watts
on 9 January 2014
The unit does what it's supposed to on installation (no durability data yet), although there seems to be several different types masquerading as the same unit. Some are reported as battery powered both ends, and some are programmable with different tunes. Mine has a wireless bell push and plug in, single chime sounder. Because we're constantly being told to switch off appliances on standby to save the planet ( Ha!) I measured the current draw of this device and was dismayed to find that it uses 19 watts. That is probably about £24 - £25 per annum on your electricity bill. Mobile telephone chargers and TV sets on standby don't come near this level of current usage so the advice ought to be avoid wireless doorbells, surely?
On a practical matter, the bell-push has a very thin translucent gasket that is designed to keep rainwater out. If you don't notice this and it is out of place when you close the casing, rain will be able to get in and ruin the circuit board.