Timeguard have used their customers comments and feedback to develop the new ZV800B, making it easier to install and simpler to use. Featuring a lovely, large digital screen so you can clearly see what you're programming. Complete with large, easy set push buttons. To make it even easier to use, you can press the whole of the front of the wall switch and use it as a quick master ON/OFF control; you can even use your elbow - it's that easy.