Klein Tools NCVT1P Voltage Tester, Non-Contact Low Voltage Tester Pen, 50V to 1000V AC, Audible and Flashing LED Alarms, Pocket Clip

This device is GREAT. Put the two AAA batteries in (came with it). I also watched the video. Used it today as I needed to replace a basic light switch. Came in VERY handy. I also have been watching my dad use his old two-wand test meter from the 1970s. This is SO MUCH EASIER and it works!!!!!! When the line is hot, the red light goes on and you get a warning noise. If the line is cold the device light remains green. Just told my daughter to buy this for my dad for Christmas.

Great little tester. Durable, long lasting battery, easy to use, and works great. Not a cheap unit, and easy to read voltage meter .

I don't like getting electrocuted and want to check circuits every way possible. I trust Klein tools. Solid, well built, and reliable.

Great product. Works perfect

Works as it should. Not crazy about how the two AAA batteries are installed under black cap. Be very careful installing because the small metal tangs bends very easily and can cause intermittent operation if not touching the board contacts perfectly.

Excellent for detecting active current. I can work safely. When it detects the current, it emits quality sound and red light. It gives me precision to identify wires. Very easy to use Also to know the errors in the outlets.

Work as described. Time saving and ease of use. No noise from using this. High quality plastic will last .

Exactly what was needed for 100 year old house with knob and tube fabric covered copper with no markings what so ever.