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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

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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, May 1
Order within 12 hours and 30 minutes
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Color: Red


Size: HT100s


Features

  • SAFETY FIRST: It will send out multiple alarms through sound and light. When the voltage is detected, the tip will send out red light and beep. When the higher the sensed voltage is, or the closer it is to the voltage source, it beeps at a higher frequency and the percentage value will be larger. At the same time, the screen will be red or green, red means high voltage and live wire are detected, green means low voltage and null wire are detected
  • NON-CONTACT: With NCV inductive probe for AC voltage; Just place the tip near a terminal strip, outlet, or supply cord. When the tip glows red and the pen beeps, you know there's voltage present. The live wire detector can automatically detect the live or neutral wire. Ideal for breakpoint Test. Handy circuit tester for electricians, homeowners
  • DUAL RANGE: Detects standard and low voltage (12-1000V AC / 70-1000V AC) for more sensitive and flexible measurements. Press the S button to adjust sensitivity and adapt low range for doorbells, thermostats, irrigation wiring etc.; The NCV sensor automatically recognizes the voltage and displays it on the bar graph, and the percentage value can display the voltage signal intensity more intuitively
  • SECURITY LEVEL: IEC rated CAT III 1000V CAT IV 600V, Meets CE requirements; The electrical tester is safely double insulated. High Voltage Alert to warn you of voltage above 90V, the screen turn red and the safety symbol on the screen shines
  • COMPACT DESIGN: Bright LED flashlight for work in dim ares; Low-Power-Indicator when battery voltage is below 2.5V; Automatic Power Off after 5 minutes without operation or signal detection; Pocket-sized, pen hook allows you to carry it in your shirt pocket. We provide 36-Month after sale service, Please feel free to contact us if you have any concerns

Brand: KAIWEETS


Power Source: Battery Powered


Style: Compact


Color: Red


Item Weight: 80 Grams


Power Source: Battery Powered


Minimum Operating Voltage: 12 Volts (AC)


Measurement Type: Voltmeter


Maximum Operating Voltage: 1000 Volts


Style Name: Compact


Color: Red


Item Weight: 80 Grams


Item Dimensions: 5.91 x 0.79 x 0.79 inches


Brand Name: KAIWEETS


Model: HT100s


Manufacturer: KAIWEETS


Included Components: Voltage Tester


Specification Met: Ce, Iec Cat.iii 1000v Cat.iv 600v


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Reliable, Easy-to-Use Voltage Tester — A DIYer’s Safety Net
Color: Red Size: HT100s
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. ... show more
Reviewed in the United States on December 30, 2025 by Draco

  • Safety and precision in the palm of your hand
Color: Red Size: HT100s
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. ... show more
Reviewed in the United States on December 21, 2025 by Chris

  • Great addition to toolbox
Color: Red Size: HT100s
Works great. Saved me hundreds of dollars of hiring an electrician, since I needed to check if power was getting to a deck/porch light, and it was, I simply needed a new light fixture.
Reviewed in the United States on April 11, 2026 by ejohnson3012000

  • Good but not great.
Color: Red Size: HT100s
As a Grill Guy who does a fair bit of maintenance around the house (and really doesn’t want to feel what 220 volts feels like if I mess up), I picked up the KAIWEETS Non-Contact Voltage Tester – dual range AC 12V/70V-1000V with signal percentage, LCD display, buzzer alarm, and wire breakpoint finder. It works well and gives me peace of mind: the dual-range detection is handy for both low-voltage and standard household wiring, the LCD shows a clear percentage/signal strength, and the buzzer + light alerts are loud and obvious. It quickly identifies live wires, null wires, and even helps locate breaks. Solid build for the price. Two small but annoying misses: there’s no mute button for the buzzer (it just keeps beeping when you’re near voltage), and no way to freeze/hold the digital reading on the screen. That makes it tricky to pull the tester away from an outlet or wire and still clearly see the exact power level. At the typical budget price, it’s still a useful tool, just not quite as refined as it could be. Tips/Hacks: - Test in short bursts and note the percentage quickly before pulling away. - Use the flashlight feature in dim breaker boxes or crawl spaces. - Keep it in your tool bag next to your multimeter for quick voltage checks. - Double-check with a contact tester on important circuits for extra safety. - Test the first time with a surge protector that you can turn on and off to make sure working correctly. Final summary: KAIWEETS Non-Contact Voltage Tester does the job safely and clearly shows voltage percentage, but the non-mutable buzzer and lack of screen hold feature feel like basic misses. 4/5 – good tool for cautious grill guys doing house maintenance, just not perfect. Still keeping it because it beats guessing! ⚡🔧 ... show more
Reviewed in the United States on April 5, 2026 by Jason & Annie

  • Good tool
Color: Red Size: HT100s
I used this to replace all my outlets and light switches in my new house. This thing worked amazing! Accurate fast to find the live wire and is super easy to read!
Reviewed in the United States on April 8, 2026 by Hunter Crawford

  • Simple and Super Handy!
Color: Red Size: HT100s
It does exactly what it's advertised to do. Super easy to use and gets the job done.
Reviewed in the United States on March 23, 2026 by Tony F

  • Works great
Color: Red Size: HT100s
Works on both normal and GFCI outlets. Easy to use, and the sensitive mode works very well at detecting voltage when in the area of the outlet, not even in it. Lightweight and seems durable. The design of the ramping voltage meter is a good visual. It doesn't really indicate voltage I don't think, but rather how close it is to the power. ... show more
Reviewed in the United States on February 6, 2026 by Zanaba

  • Great Little Tool.
Color: Red Size: HT100s
Bought this to replace one of another brand that broke. Very well made and works as described.
Reviewed in the United States on April 3, 2026 by CD

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