PSA: I was wrong about homemade alarm testers

I always thought you had to get the store-bought kind. Putting one together from old components got me out of a tight spot last week. Now I always carry one in my van.

3 comments

3 Comments

hill.andrew1mo ago

Real understanding of a tool beats just owning one. Those store kits don't teach you how the circuit actually fails. Building your own means you can probably fix the real alarm too.

viola_king1mo ago

Understand that store kits help beginners learn the basics too.

margaret_rodriguez1mo ago

Yeah that bit about real understanding is so true lol. I fixed a buddy's motion sensor last month because building my own tester let me see how the signal decayed. Was just a bad ground connection but I never would have spotted that with a store-bought kit.