A pen that says nothing is not the same as a circuit that is dead · review
A 12 to 1000 V AC contactless pen stating CAT III 600 V, with LED indication and an instruction to test the pen before each use.
What the figures leave us with A rated pen for nine euros with the right instruction printed on it. Use it first and never last.
The fastest tool in the box, and the one it is easiest to over-trust.
Non-contact voltage detection within 12 to 1000 V AC. Safe and convenient testing without contact. LED illumination when voltage is detected. CAT III 600 V, with RoHS certification. An instruction to test the detector before use.
A contactless pen detects the electric field around a live conductor through the insulation. How strong that field looks depends on the thickness of the insulation, whether the cable is screened, whether the conductor is buried in a bundle, and how you are holding the pen. All of those vary, and none of them is under your control.
That means a silent pen is not evidence. It is the absence of evidence, which is a different thing entirely.
Use it to find which of six cables is live. Use it to check a socket before opening it. Do not use it as the last check before touching a conductor — that is the two-pole tester’s job, and every tester in the first half of this hub does it properly.
Read on the day this page was built: $10 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Prices quoted in this text were read on 31 August 2026. The live price is at the top of the page.
| Amazon reference | B01JYCVU2Q (identical on 6 markets) |
|---|---|
| EAN | 5060492190127 |
| Voltage measurement | 12–1000 V AC |
| Measurement category | CAT III 600 V stated |
| Illumination | LED indication |
At $10, it is the 1 cheapest of the 3 models in this category published here.
No, and this is the most important sentence on the page. It answers "there is probably voltage here" and never "this is safe". Insulation thickness, screening and how the pen is held all change what it senses. Confirm with a two-pole tester that loads the circuit, and follow the manufacturer instructions for both tools.
Holding it against a conductor you know is live, to confirm it still responds. Neoteck prints the instruction; it is the single habit that makes a contactless detector usable at all.
The manufacturer's statement of the transient over-voltage the pen is built to survive in fixed installation work. We report the marking without assessing conformity.
7.2/ 10
A rated pen for nine euros with the right instruction printed on it. Use it first and never last.
Same category, nearby prices, between measuring instruments. What remains is the specifications every one publishes — half empty, a column is no use.
| Model | Price | Voltage measurement |
|---|---|---|
| Neoteck Non-contact voltage pen, 12–1000 V | $10 | 12–1000 V AC |
| BSIDE Non-contact pen with adjustable sensitivity, 12–1000 V | $16 | 12–1000 V AC |
| Fluke VoltAlert 2AC, 90–1000 V | $36 | 90–1000 V AC |
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom, United States. Listed is not the same as in stock — availability changes daily.
Details checked on August 31, 2026.
A pocket first check, always followed by a two-pole tester before any work.
Amazon reports what buyers took in the month before this page was last checked: at least 5,000.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for measuring instruments and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
90–1000 V AC · flat tip · industrial reference
Fluke's industrial detector, 90 to 1000 V AC with a flat tip. The listing states almost nothing beyond the range and the form.
Best for: A workshop standardized on Fluke, where the catalog reference is worth more than the listing.
≈ $36
12–1000 V AC · auto and manual modes · stepless sensitivity · 8 LEDs in 3 colors
A detector with continuously adjustable sensitivity and an eight-LED, three-color strength display, so field strength is read as a scale rather than as a yes or no.
Best for: Picking one live conductor out of several, where a single-threshold pen lights up on all of them.
≈ $16
50–1000 V AC · CAT III 1000 V stated · LED, buzzer and vibration
A 50 to 1000 V pen stating CAT III 1000 V, alerting by LED, buzzer and vibration, and usable for tracing a break in a wire.
Best for: Tracing cables and identifying the live conductor in noisy or poorly lit conditions.
