Pocket Geiger counter
A compact Geiger counter with a glass Geiger-Muller tube. It shows the dose rate in µSv/h, the count rate in CPM and a trend graph, for the curious, collectors of old glass and minerals, and travellers.
The yellow counter
The counter
Total: £79.00
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30 days to change your mind
Send it back, get your money back. See the terms
Included in the box
Free delivery, with no minimum, to the United Kingdom. Your counter is prepared in 1 to 2 working days after your payment is confirmed, then delivered in 2 to 5 working days from our UK warehouse: the parcel never goes through customs. These times are estimates, not a guaranteed date, and a tracking number is emailed to you when it ships.
30 days after delivery to change your mind: send back the counter with everything from its box, unused or only tried, in its original packaging, and get your money back. Return postage is paid by you, unless the product is faulty, the wrong item or not as ordered, in which case we email you a prepaid label. Refund to your original payment method no later than 14 days after we receive the return.
Readings are indicative: this is a consumer counter, not a calibrated instrument, not protective equipment and not a radon test. These terms come on top of your statutory rights, including the 14-day cancellation period and the Consumer Rights Act 2015.
It is prepared in 1 to 2 working days, then delivered in 2 to 5 working days from our UK warehouse. Delivery is free, the times are estimates, and your tracking number arrives by email when it ships.
With Visa, Mastercard, Apple Pay, Google Pay or Link, depending on your device, on Stripe's secure payment page. Your card details never reach this site.
No. The parcel ships from a UK warehouse and never goes through customs, and the price already includes VAT.
A USB-C cable is in the box, not a wall charger: plug it into a computer or any USB charger you already own. The 1,800 mAh battery is built in.
Yes, for 30 days after delivery: send back the counter with everything from its box, unused or only tried, in its original packaging, and get your money back. Return postage is paid by you, unless the product is faulty, the wrong item or not as ordered. Your statutory rights also apply.
Try it here
Radioactive decay is random, so counts arrive at irregular moments. The instant reading jumps about while the running average slowly settles. Try it below: this is an illustration of random counts, not a measurement.
In one independent test, a J321-type tube counted about 20 CPM from natural background.
Time runs ten times faster than real time here.
This is a simulation of random counts, not a measurement and not this counter's reading. The real device shows its own instant and average readings, plus a dose rate trend graph on its screen.
Before comparing two places or two objects, let the counter run for a few minutes and read the average, not the instant figure.
On the screen
The 2.4-inch colour screen shows the dose rate in µSv/h, both in real time and as an average, the count rate in CPM or CPS, and the cumulative dose in µSv. A trend graph follows the dose rate over time. You set two alarm thresholds, one for dose rate and one for dose, with sound, flashing light or vibration. Data is kept after switching off, and the manufacturer describes a download to a PC over USB-C. Readings are indicative.
Honest limits
This is a consumer radiation detector for general information only. Its readings are indicative: it is not a calibrated measuring instrument, not personal protective equipment and not a radon test. If you see an unusually high or persistent reading, move away from the source, do not handle the object and contact the UK Health Security Agency (UKHSA) or your local authority. In an emergency, call 999.
Everyday curiosity
It is a tool for everyday curiosity: watch the natural background at home, compare old objects and rocks against it, and see how the reading changes on a flight. The average tells the story.
Collectors hold the counter near vintage uranium glass, which glows green under UV light, or near an old radium-dial clock, then compare the count with background. Look, but do not take anything apart: keep objects intact, never open a radium dial, never serve food or drink in them, and wash your hands after handling. A broken piece? Ask your local authority.
Granite and some minerals can read above background, and the figure varies from one stone to the next. Radiation drops quickly with distance, so hold the counter in the same spot each time and compare averages rather than peaks. Keep samples in their box, and treat the reading as a comparison, not a precise measurement.
At cruising altitude the dose rate reads higher than on the ground, because cosmic radiation increases with height, as the US EPA explains. A transatlantic flight adds about 0.08 mSv according to the UKHSA. The counter is a small device with a built-in lithium battery, so check your airline's rules for batteries in the cabin.
Getting started
Charge the counter with the USB-C cable in the box; no mains charger is included. Switch it on and let it count the background for a few minutes. Pick the main screen, numbers or the trend graph, then set the two alarm thresholds and choose sound, flashing light or vibration. The menu offers several languages. The manufacturer describes a data download to a PC over USB-C with its own software, which the shop does not supply.
Know the difference
Not every device sold for "radiation" actually counts it. Here the Geiger counter sits next to a cheap 3-in-1 gadget, which mostly reads electromagnetic fields, and next to a scintillation counter, compared by category, never by brand.
| Specification | Geiger Counter Shop | 3-in-1 EMF 'radiation' gadget | Scintillation counter |
|---|---|---|---|
| What it detects | Ionising radiation: beta, gamma and X-rays | Mostly electromagnetic fields | Gamma and X-rays, with more sensitivity |
| Sensor | Glass Geiger-Muller tube | Mostly an EMF sensor, varies by device | Scintillation crystal and light sensor |
| Units shown | µSv/h, µSv, CPM and CPS | Mostly field readings, varies by device | Varies by device |
| Sensitivity at background | About 20 CPM with a J321-type tube (one independent test) | No ionising count, or very low | Higher: more counts at the same background |
| Energy information | No spectrum | None | Often a spectrum |
| Typical public price (Sept 2026) | About £37 to £81 for consumer Geiger counters | About £13 to £28 | About $250 to $600 (US listings) |
| Who it suits | Curious owners, collectors and travellers | Checking electrical fields, not radiation | Hobbyists who want gamma detail and a spectrum |
Sources: the manufacturer's spec sheet for this counter, one independent test, and public listings by category read on 28 September 2026. Prices are rough orders of magnitude, not offers, and no brand is named.
What you get
FAQ
Public UK listings for consumer Geiger counters ran from about £37 to £81 when we looked on 28 September 2026, a rough order of magnitude rather than an offer. Scintillation counters with a spectrum sit much higher, about $250 to $600 on US listings. Cheap 3-in-1 'radiation' gadgets, at about £13 to £28, mostly read electromagnetic fields rather than ionising radiation. The price of this counter, with VAT and delivery included, is shown on the page.
Its glass Geiger-Muller tube counts beta particles, gamma rays and X-rays. Alpha particles do not get through the glass, so alpha does not register. It does not measure a radon concentration (use a radon test kit), it does not react to EMF, Wi-Fi or 5G, which are not ionising radiation, and it cannot tell you whether food or water is contaminated.
Background radiation is everywhere, so the counter always counts something. The UKHSA puts average UK exposure at about 2.6 mSv a year, quoted here for context only. In one independent test, a tube of this type counted about 20 CPM at background; the US EPA notes that background varies by place and rises with altitude. If a reading is unusually high or persistent, move away, do not handle the object and contact the UKHSA or your local authority (999 in an emergency).
The tube turns each particle it detects into a count, shown as CPM or CPS. The µSv/h figure is a dose rate the counter works out from those counts. Near a beta source it runs high, because the tube has no beta shield, so read the CPM instead. CPM depends on the tube, so never compare CPM between two different counters; compare readings taken with the same counter.
It is a small device with a built-in battery of about 6.7 Wh. For reference, the US FAA limits lithium-ion batteries in personal devices to 100 Wh, but rules vary, so check your airline's rules before you fly. In the air, expect the reading to climb at cruising altitude because of cosmic radiation: according to the UKHSA, a transatlantic flight adds about 0.08 mSv.
The manufacturer states 30 days or more in long-life mode, while an independent test found about 5 days in normal use, so the mode you choose makes a real difference. Charge it with the USB-C cable in the box; no mains charger is included. The 1,800 mAh battery is built in and cannot be replaced by the user.
Not quite. This counter has a cumulative dose mode that is handy for tracking, but it is not a regulatory dosimeter. The manufacturer gives a range of 0.01 µSv/h to 50 mSv/h and a relative error under 10% at 1 mSv/h on its own reference. It is a consumer counter with indicative readings: not a calibrated instrument, and it comes with no calibration certificate.
Right here: UK orders ship free from a warehouse in the United Kingdom, so there is no customs step. Orders are prepared in 1 to 2 working days, then delivered in 2 to 5 working days (indicative, not a guaranteed date), with tracking by email. Payment goes through Stripe. You have 30 days after delivery to change your mind, on top of your 14-day cancellation right and the Consumer Rights Act 2015. No licence is needed, as the counter contains no radioactive source.
Guides
Plain-English guides to reading a Geiger counter, background radiation and old objects, written from official sources.
A Geiger counter turns each ionising event in its gas-filled tube into a click. What it detects, what CPM and µSv/h mean, and what it cannot tell you.
Read the guide
What CPM, CPS, µSv/h and µSv mean on a Geiger counter, how sieverts relate to rem, and how to read background with UKHSA figures as context.
Read the guide
A Geiger counter estimates dose rate now, a dosimeter totals dose over time, a scintillator is more sensitive to gamma. What each does and when it fits.
Read the guide
Choosing a Geiger counter under £100: the tube, beta and gamma detection, µSv/h and CPM, alarms, a USB-C battery, and the EMF gadgets to avoid.
Read the guide
A Geiger counter you can carry, with a glass GM tube, a clear colour screen and alarms you set yourself. Watch the background at home, check old glass, or follow the figures on your next flight.
Buy a Geiger counter · £79.00Free delivery from UK stock, and 30 days after delivery to change your mind.
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