All items tagged with Simple and Alarm (4)

10-04-2018 | Did you know that many projects published at Elektor Labs include the word “simple” in their title? The one we highlight this week is one of...

1-07-2004 | Most darkness activated alarms employ opamps and some logic ICs. Here, a less expensive approach is shown based on the eternal 555, this tim...

1-07-2003 | The circuit presented here is a very simple and yet highly effective alarm system for protecting an object. The circuit requires no special...

1-04-1996 | The circuit presented, although a simple design, guarantees a prompt and reliable indication of any form of water leak. It is hardly l...