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⚡ Stay Shock-Savvy: Detect, Diagnose, Dominate Your Electrical Tasks!
The Neoteck Non Contact Voltage Tester NTK139 is a professional-grade, dual-range AC voltage detector pen (12-1000V) featuring adjustable sensitivity, a clear LCD display with buzzer alerts for live/null wire identification, and a built-in LED flashlight. Certified CE CAT III600V and RoHS compliant, it offers enhanced safety with high voltage alerts and wire breakpoint detection, all packed in a compact, portable design ideal for electricians, DIY enthusiasts, and homeowners.











| Asin | B07W4K5Q63 |
| Best Sellers Rank | 4,079 in DIY & Tools (See Top 100 in DIY & Tools) 6 in Voltage Testers |
| Brand | Neoteck |
| Colour | Grey |
| Country Of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (15,600) 4.4 out of 5 stars |
| Included Components | 1 x Non-contact Voltage Tester Pen |
| Item Dimensions | 15.5 x 2 x 2 centimetres |
| Item Weight | 100 Grams |
| Manufacturer | Neoteck |
| Manufacturer Part Number | NTK139 |
| Maximum Operating Voltage | 1000 Volts |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 12 Volts (AC) |
| Model Number | NTK139 |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Power Source | Battery Powered |
| Specification Met | CE, RoHS |
| Style Name | Safety,Voltage |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 40 Degrees Celsius |
User
Works as stated, also has handy light.
Great bit of kit, very handy to have one in your toolbox..
User
Great voltage tester
Excellent voltage tester, works well. Simple to use, and an wonderful piece of kit. Great value for money. 👍
User
Very good
perfect for me, not very robust, but does the job
User
good product
The voltage tester is well-made and highly sensitive, giving me peace of mind while performing electrical work.
User
Great tester for someone who is in the know
I received a similar voltage stick as this,CEF (UK)was the supplier, same circuitry etc, the unit is brilliant, with some knowledge, the unit shows on a bar or two ghost potential, mutual inductance etc, when on a live cable, like right next to the probe, it's red, for example on a three core flex, line, neutral and earth aka ground, the probe can be rotated around the circular flex and live can be located or neutral, even though it's very close to each other, used so many times it's simply practice to quickly test, so on a closely connected neutral and line it's child's play,The meter scale from yellow to red is really useful, as it's not a binary light up and sound OR not, relying very much on the tester to determine, but the accurate scale of (if memory serves) four yellow LEDs to two red leaves room for knowledge, intuition on experience, a quick rule of thumb, one or two yellow, ghost or residual or mutual/ inductance voltage, 3 or more yellow, neutral and finally one or two red, live, it varies one either way for type of circuit / equipment or situation, but the rule of thumb is like 95% spot on,I am a fluke,megger, metrowatt, kewtech, etc guy, but this voltage stick for a passive device is brilliant, the more you use it, then you just know how its nuances are,Invaluable and ability to create a higher resolution from the circuit dependent binary of live or not, sound and light up or not, just proves again, cost is no metric for quality or performance,Make sure if your meter is in reserve in a toolbox or in storage, REMOVE THE BATTERIES! batteries leak and knacker the meter, had a Klein pen voltage stick ruined by a leaking Duracell battery, fixed down to component level, but it's a non serviceable unit, so makes a mess getting into the gubbins,
User
Easy to use
Changed ceiling rose as previous one had broken. Tested first near red wires, beeps no problem, same with plug socket. Turned off power at mains tested rose red wires again ,no beep, tested plug socket to make sure , no beep. So yes it works, also has a light, which was rather handy to look into the void to see wires after removing ceiling rose. Better safe than sorry
User
Cheap, but does produce false positives
I bought this because I believed it would be a good idea to be doubly sure I'd turned the power off on the lighting circuit before messing with the wiring. As much as I trust the wiring to be right, it's just better safe than sorry.It's a nice item, feels good in the hand and isn't heavy. It's also very easy to operate, just turn it on and point the tip at whatever you want to check and, if it detects any electricity, it'll beep and flash a red light at you. How easy is that? It also has a torch built in, which isn't especially bright, but it did come in handy when I was changing a light switch and it suddenly went very dark outside.As for accuracy, I found it can be a bit overly keen to detect electricity when there isn't any. I tried it on a few dead circuits and, whilst it picked up that most were indeed dead, on occasion it blazed a warning at me anyway. I found that if you move it about or press hard on the tip, it encourages it to misbehave, so only a light touch with the very tip is needed. In fact, in one instance I had it powered on near to a thin DC power cord and it shouted at me even though it was pointing only vaguely near it, which was a bit of a concern if I'm honest.The main reason for a device like this is so you don't kill yourself handling live cables. But I found on occasion that the false positives meant I sometimes ignored the result and carried on anyway, which on reflection wasn't very sensible. If it's not reliable enough, it's not really that useful.
User
Cheap but works well
It works so far so good
User
Doet wat hij moet doen!
Werkt zeer gemakkelijk
User
Funciona
Cumple con la descripción bien
User
Cumple muy bien con su función
Es pequeño y ligero, nada en contra y lo uso para hogar y trabajo
User
Great product
Very good product, works as described, very sensitive, like that it can be switched easily from 12V-1000V to 48V-1000V.Very audible sound and light indication.Will recommend. Price is also good.
User
Excellent. Great product for the price.
Excellent, working perfectly. Batteries are included and it has a simple to understand display screen with audio/visual warnings also. Handy built in torch for illuminating the area you are working on. Great product for the price.
Trustpilot
5 days ago
2 weeks ago