KAIWEETS Voltage Tester/Non-Contact Voltage Tester with Signal Percentage, Dual Range AC 12V/70V-1000V, Live/Null Wire Tester, Electrical Tester with LCD Display, Buzzer Alarm, Wire Breakpoint Finder

I’ve been using the KAIWEETS Voltage Tester for months now, and it’s still going strong. The use is incredibly intuitive — turn it on and you’re ready to go. I’m not a professional, so being able to quickly check for voltage before working (see my photos replacing a single-pole light switch) gives real peace of mind. The features are well thought out. I like that you can increase sensitivity to detect current more easily, and the built-in light is genuinely useful — just hold the button for two seconds to toggle it on or off. Instructions were clear, which made ease of installation and setup straightforward. In terms of utility, this is perfect for DIY home projects, and the durability has proven solid after repeated use. It’s been accurate every time I’ve checked — roughly 50 uses so far with consistent results. Overall, a simple, reliable tool that helps keep you safe while working around electricity. Highly recommend for any homeowner or DIYer.

The KAIWEETS Non-Contact Voltage Tester is an essential safety tool for both DIY enthusiasts and professional electricians. The standout feature is the signal percentage display on the LCD, which provides much more clarity than a simple flashing light when pinpointing live wires. I love the dual-range sensitivity (12V/70V-1000V), allowing me to switch between standard home outlets and low-voltage systems like thermostats or doorbells. The wire breakpoint finder is a lifesaver for troubleshooting faulty extension cords, and the buzzer alarm is loud enough to hear in noisy environments. It’s well-built, intuitive to use, and provides the peace of mind needed when working around electricity.

I use voltage tester for occasional use at home. My old Fluke tester stopped working, so I bought this one as a replacement. It works very well for my use.

Pros: For an inexpensive tester, this is a good one. I previously bought a different one - it was not dual voltage and did not have auto-shutoff. This one is easy to use, dual range, sensitive, rugged, and has built-in LED flashlight near the probe. Cons: this is a bit bulky, fits in shirt pocket, but is a bit bigger than a Klein. Also, I think it uses AAA batteries, verify that.

this tool was the best when replacing wall outlets...we tested it out first by turning the power off then back on & this tester worked like a charm...

So far it works great having no problem with it yet Time will tail

Simple easy to use works great, a must have

I like that this can have the sensitivity range set, and that it gives feedback (on the screen) of how strong a signal it is getting. This reduces some "false positive" results from phantom power. However, the normal safety precautions for non-contact voltage detectors are *absolutely critical* here. For some reason, my unit would periodically turn off with no warning. It didn't appear to be a timeout, but rather just a sudden loss of power. Thus, I could not rely on "no beep == no power" as is somewhat reliable on other similar devices. To refresh, the safety protocol is: 1. Test live-suspect-live. That is, after turning the device on, put next to a known-live wire (beeps), then next to your maybe-not-live wire (no beep if really not live) then back to the known-live wire (beeps again). If the device loses power, that last step *will not* beep, indicating an issue. 2. Always rotate the tip of the NCV when exploring a box! When the "flat" part is parallel to the wire you will usually get a reading, while you will often *not* get a reading if it is orthogonal to the wire. 3. Never rely on just the NCV, but also use a multimeter before touching any exposed metal. The NCV is *great* at determining hot vs neutral, but much less definitive than a solid connection between those two with a multimeter that determines if they have power or not. There are also cases where multiple hots can "cancel out" leading the NCV to conclude there is no power when in fact there is.