| This time, Velleman have sent us a car burglar alarm construction kit for evaluation. This is a fairly simple but highly functional circuit,...
| This time, Velleman have sent us a car burglar alarm construction kit for evaluation. This is a fairly simple but highly functional circuit,...
| The circuit presented, although a simple design, guarantees a prompt and reliable indication of any form of water leak. It is hardly l...
| Although it has no detector or alarm actuation device of any kind, the present circuit may still function as a deterrent against car thi...