Guy asked ... Gaggenau fridge alarm problem?    |    mike asked ... Fisher & Paykel 913t dishwasher?    |    Emma asked ... Foot pedal smoking?    |    Morne asked ... My defy dtl 125 toploader?    |    Ernie asked ... How to fix gearchange ldv maxus van 2006?    |    Click here to ask your question

window/door sensors?

these are normally in pairs, one wired and one unwired. The wired one has a light on the face of it but there isn't a sunsor on the other half of the window that opens, why?
Alex, July 2009
Because its a vibration sensor, Grade 1. You can buy graded products that do both.
J 07842 480037

J, July 2009