TECKNET Twin Self-Powered Wireless Doorbell Plug

You can get this great deal by using Price Drop + Code BELL50.

This will reduce it from £35.99 to about £15.

• Twin Wireless Doorbell Kit comes with an AC Socket that won't take up your plug; the self-generating transmitter automatically generates power when pressed and sends a steady signal to the receiver.
• This unit lets you choose the best way to be notified when someone is at your door. In addition to your choice of 60 selectable chime tunes. You'll be happy to know that you have the option of turning the chime down or up - a great option for different environment.
• This IP65 Rated transmitter with waterproof ring seal operates between -10°C (14°F ) to 50°C (122°F ) and withstands various adverse weather conditions. No worry to install it anywhere inside or on the outside of your door frame or in the garden.