Review on ⚡ Enhanced Extech DVA30 Non-Contact Current and Voltage Detector by Jeffrey Connel

I have many diagnostic tools but none are as easy to use as this one to trace the actual current flow in a circuit that I can't see. I found the DVA30 easy to use. I've used it successfully to run 120VAC and low voltage AC wiring behind drywall and under cellulose insulation. I was able to trace 12VAC landscape lighting wires in the yard and under fine dirt. Separate adjustable sensitivities for voltage and current detection are very useful for finding the signal and pinpointing exactly where it is. The strength of the beeps and LED flashes varies proportionally to the strength of the signal (not the actual voltage). To get 5 stars, I'd like a better power button, better protected sensitivity controls, and a stronger build. I haven't had any problems, but these areas need improvement. Replacement batteries can be bought cheaply online and kept in the fridge. Very glad I bought them.