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 curious minds, collectors of old glass and minerals, and travelers.
The yellow counter
The counter
Total: $79.00
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Included in the box
Free shipping, with no minimum, to the United States. Your counter is prepared in 1 to 2 business days after your payment is confirmed, then delivered in 3 to 6 business days from our US 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 shipping 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 any rights your state's law gives you.
It is prepared in 1 to 2 business days, then delivered in 3 to 6 business days from our US warehouse. Shipping 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 US warehouse and never goes through customs. Sales tax, if any, is shown before you pay.
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 shipping is paid by you, unless the product is faulty, the wrong item or not as ordered.
Try it here
Radioactive decay is random, so counts arrive at irregular moments. The instant reading jumps around 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-size 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 a few minutes and read the average, not the instant number.
On the screen
The 2.4-inch color 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 tracks 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 power 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 your state radiation control program or the EPA. In an emergency, call 911.
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, 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 number varies from one stone to the next. Radiation drops quickly with distance, so hold the counter at 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 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 wall 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 | Ionizing radiation: beta, gamma and X-rays | Mostly electromagnetic fields | Gamma and X-rays, with more sensitivity |
| Sensor | Glass Geiger-Muller tube | EMF sensor, sometimes a small tube | 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-size tube (one independent test) | No ionizing 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 $26 to $128 for consumer Geiger counters | About $13 to $28 | About $250 to $600 |
| Who it suits | Curious owners, collectors and travelers | 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 September 28, 2026. Prices are rough orders of magnitude, not offers, and no brand is named.
What you get
FAQ
Yes. A consumer Geiger counter contains no radioactive source, so owning one needs no license or permit. It only counts the radiation that is already around it, and nothing in the box is radioactive. The shop delivers to the United States and the United Kingdom only. For a question about a specific use, write to contact@r36s-console.com before you order.
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 ionizing radiation, and it cannot tell you whether food or water is contaminated.
The counter always counts something, because natural background radiation is everywhere. In one independent test, a tube of this type counted about 20 CPM at background. The EPA explains that background varies from place to place, with building materials and with altitude. Let it run a few minutes and read the average. If a reading is unusually high or persistent, move away, do not handle the object and contact your state radiation control program or the EPA (911 in an emergency).
µSv/h is a dose rate that the manufacturer converts from counts, set up for gamma. Near a beta source it runs high, because the tube has no beta shield, so read the CPM, the raw count from the tube. CPM depends on the tube, so never compare CPM between two different counters; compare readings taken with the same counter instead.
It is a small device with a built-in battery of about 6.7 Wh. The FAA limits lithium-ion batteries in personal devices to 100 Wh, but rules vary, so check with your airline 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 wall charger is included. The 1,800 mAh battery is built in and is not user-replaceable.
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. This is a consumer counter with indicative readings: it is not a calibrated instrument and comes with no calibration certificate. Its cumulative dose mode is handy for tracking, but it is not a regulatory dosimeter.
US orders ship free from a warehouse in the United States, so there is no customs step. Orders are prepared in 1 to 2 business days, then delivered in 3 to 6 business days (indicative, not a guaranteed date), with tracking by email. Payment goes through Stripe. You have 30 days after delivery to change your mind and get your money back, on top of your legal rights.
Guides
Plain-language guides to reading a Geiger counter, background radiation and old objects, written from official sources.
A Geiger counter turns each ionizing event in its gas-filled tube into a click. See 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 convert to rem, and how to read background with EPA and UKHSA figures as context.
Read the guide
A Geiger counter estimates dose rate now, a dosimeter adds up dose over time, a scintillator is more sensitive to gamma. What each does and when to use it.
Read the guide
How to choose a Geiger counter under $100: tube type, beta and gamma detection, µSv/h and CPM, alarms, USB-C battery, and the EMF gadgets to skip.
Read the guide
A Geiger meter you can carry, with a glass GM tube, a clear color screen and alarms you set yourself. Watch the background at home, check old glass, or follow the numbers on your next flight.
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