---
product_id: 829243
title: "RADEX RD1503+ w/o dosimeter: High Accuracy Geiger Counter, Radiation Detector"
brand: "quarta-rad"
price: "28159 som"
currency: KGS
in_stock: true
reviews_count: 4
url: https://www.desertcart.kg/products/829243-radex-rd1503-w-o-dosimeter-high-accuracy-geiger-counter-radiation
store_origin: KG
region: Kyrgyzstan
---

# 0.05~9.99 µSv/h dose range vibration + audio alarm 40s rapid measurement cycle RADEX RD1503+ w/o dosimeter: High Accuracy Geiger Counter, Radiation Detector

**Brand:** quarta-rad
**Price:** 28159 som
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay ahead of invisible risks with RADEX RD1503+ — your pocket-sized radiation watchdog!

## Quick Answers

- **What is this?** RADEX RD1503+ w/o dosimeter: High Accuracy Geiger Counter, Radiation Detector by quarta-rad
- **How much does it cost?** 28159 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/829243-radex-rd1503-w-o-dosimeter-high-accuracy-geiger-counter-radiation)

## Best For

- quarta-rad enthusiasts

## Why This Product

- Trusted quarta-rad brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Alert System:** Stay instantly informed with adjustable vibration and audio alarms that keep you safe without missing a beat.
- • **Wide Detection Range:** Accurately monitors ambient dose rates from 0.05 to 9.99 µSv/h, covering everyday radiation levels with confidence.
- • **Precision in 40 Seconds:** Get reliable radiation readings faster than ever with a quick 40-second measurement cycle.
- • **Professional-Grade Sensor:** Equipped with a low-voltage SBM20-1 Geiger-Muller tube used in scientific dosimeters, ensuring trusted accuracy for non-experts.
- • **Smart Memory & Intuitive UI:** Background dose saved even when off, plus animated button feedback and a clear display for effortless operation.

## Overview

The RADEX RD1503+ is an upgraded, user-friendly Geiger counter designed for quick, accurate detection of beta, gamma, and X-ray radiation. Featuring a 40-second measurement cycle, a detection range of 0.05 to 9.99 µSv/h, and dual vibration/audio alarms, it combines professional-grade SBM20-1 sensor technology with smart firmware enhancements. Lightweight and intuitive, it’s perfect for millennials who want reliable radiation monitoring on the go without the complexity.

## Description

ATTENTION: As of August 1st, 2013, Quarta-Rad upgraded RADEX 1503 to RADEX 1503 Plus. Upgraded firmware, additional features, and cost the same as RADEX 1503. Don't be fooled by online vendors selling old and unsupported RADEX 1503 model as new. When you buy RADEX 1503 online, make sure it is RADEX 1503 Plus (Radex 1503+)Now there is a better, stronger and more advanced version of our best-selling workhorse – the RD1503.Ever since the introduction of the original RD1503, customers have been asking for additional functions and requested certain improvements on the existing design. We have listened and incorporated many new capabilities into RD1503+: New and Improved Features of RADEX RD1503+ + Graduated change of a threshold signal in the range from 0.10 to 0.90 µSv/h with an 0.10 µSv/h interval (available in individual settings). + Value of the background dose rate is saved even when the device is turned off. + Now displays the difference of the dose rate between the averaged and background values. + Includes vibration signal and audio alarm (both adjustable). + Added animation of the pressed command button (the icon of the button starts blinking on the display). This new device allows a quick and easy way to check radiation background of top soil, non-edibles and interior premises. The quality of indication of any dosimeter depends primarily on the built-in detector of ionizing radiation. RADEX RD1503+ contains a low-voltage SBM20-1 type Geiger-Muller counter of beta- and gamma-radiation which is found used in professional dosimetric equipment. An expert scientific tool that’s made for an average Joe. Quick, Simple, and now better than ever!

Review: A fine device for common folks, ie non-professionals, with a good bang for your buck. - Final verdict (long version) - it’s easy to use (because of large buttons and a large screen); - fairly accurate (depending on the level of radiation); and the main limitations are: - no data transfer - limited detection range (up to 9.99, which is good enough for everyday stuff). I have other RADEX devices and I know my way around a geiger counter / radiation detector. I test them all and compare results against uranium glass, a beta-radiation source, as well as just a common household kitchen countertops made of granite. All these units are calibrated using Cesium-137 isotope, which is the most common byproduct of a nuclear disaster. So that’s good. On the other hand, the sensor (a Geiger-muller tube SBM-20-1 in this case) won’t be as precise with other sources of radiation such as Uranium, Strontium or Radium. Also, don’t expect these units to detect electromagnetic non-ionizing waves like microwaves, wi-fi or a smartphone, because those are a totally different types or radiation (see light, etc.). At the same time this not a big deal and almost trivial for a non-professional who does not give a damn about isotopes or the physics of radiation and simply want to know “if it’s hot or not”. The good thing here is that the higher radiation levels are, the more accurate this unit gets, so that’s good. Another good thing is that as soon as you turn it on, no additional setup is required. Push the ON button, wait for 15 seconds, get your first reading. Wait another minute for the most accurate measurement available. I emailed their customer support, got a walk-through. It really is fine for 95% of the people out there looking for a radiation detector “just in case” or simply out of curiosity. Sensitivity is fine against several the samples I tested it on, same goes for accuracy across multiple radiation levels and reliability in field conditions. Just try not to get it wet.
Review: Small, Inexpensive, Works exactly as advertised - The first thing I did is a test. And it worked! A test was to see how this Geiger Counter works around the house, at work (major construction project) and with geological samples I know to be slightly radioactive (natural granite, for example). It works. It does exactly what is promised and you can see the Geiger reacting to its surroundings in real time (a small graphic is pictured on the side of the screen). Pros: The price is much lower than anything else I've seen on the market. Almost any other Geiger is circa 400 dollars. Seriously. This one takes active readings, vibrates (or clicks) if those readings are higher than the threshold level. Has background lighting so you can see the screen in a dark basement, and measures in new micorsiverts as well as in roentgens (the ones I'm more familiar with). Sensitive to the materials I have tested it on. Cons: It is not initially clear which way the batteries should be inserted. Apparently both AAAs should be facing the same way - the + side up (which is unusual). Also, there is a graphic on the side of the screen in the shape of a square that keeps drawing the lines as the Geiger is taking readings. You get the most accurate reading after 40 seconds or so when the entire square is drawn out. This took some trial to understand and is not apparent from he manual. Conclusion: a solid, rugged little instrument that is inexpensive and does the job right. I have tested it back and forth and so far I'm happy with the results. A solid recommendation.

## Features

- Updated and improved 1503 with more features and new software
- Measurement cycle of 40 seconds
- Scale range ambient dose rate equivalent is 0.05~9.99 µSv/h
- vibration is added as well as the audio alarm
- Combined Beta and Gamma, X-Ray radiation reading

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005ZQ47AS |
| Batteries | 2 AAA batteries required. (included) |
| Date First Available | October 1, 2008 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.2 ounces |
| Item model number | WE-PBNS-P0JI |
| Manufacturer | Quarta Rad |
| Product Dimensions | 4 x 2.3 x 1 inches |

## Images

![RADEX RD1503+ w/o dosimeter: High Accuracy Geiger Counter, Radiation Detector - Image 1](https://m.media-amazon.com/images/I/31Jtfhgpf1L.jpg)
![RADEX RD1503+ w/o dosimeter: High Accuracy Geiger Counter, Radiation Detector - Image 2](https://m.media-amazon.com/images/I/410kvXB7aLL.jpg)
![RADEX RD1503+ w/o dosimeter: High Accuracy Geiger Counter, Radiation Detector - Image 3](https://m.media-amazon.com/images/I/41RQmym2TCL.jpg)
![RADEX RD1503+ w/o dosimeter: High Accuracy Geiger Counter, Radiation Detector - Image 4](https://m.media-amazon.com/images/I/41c9BR2mxTL.jpg)
![RADEX RD1503+ w/o dosimeter: High Accuracy Geiger Counter, Radiation Detector - Image 5](https://m.media-amazon.com/images/I/516ON1cDNeL.jpg)

## Questions & Answers

**Q: Is this something i can use in a supermarket to check food for radiation?  i don't trust things coming from the pacific ocean because of fukushima.**
A: Testing food in general is one of the most common questions we receive and also happens to be one of the most difficult ones to answer.

In short:

- Can food be tested with a hand-held Geiger Counter?  Yes.

- Will it detect elevated levels of radioactive materials, if present? Yes.

- Is it absolutely safe to eat your fish after you scanned it and the result was negative? No, not necessarily.

This is not a sensitivity issue, but is simply because radiation emitted from a tiny contaminant will be masked by the natural background radiation that's all around us. Technically speaking, everything is radioactive, even we are. So it would be like looking for a specific water drop in a pond.

If the natural background radiation around you is .10 uSv/h and contaminant in the fish emits .02 uSv/h, then geiger counter will naturally continue showing .10, because that's how many radiation particles it is detecting in your immediate vicinity. This means that no matter how sensitive, expensive or calibrated your equipment is, the only way to be absolutely sure that food is safe would be to test it in a lab, where a piece of produce is placed inside a special lead capsule that isolates it completely from any background radiation. There is a lengthy scientific procedure of setting up such tests. Many manufacturers will claim that their detectors will works just as well, but as you can clearly tell, that is a marketing scheme.

The only sure way of accurately testing food for radiation is in a lab. Period.

Having said that, there are still ways to considerably improve you chances of detecting contamination.

Here are some practical tips in getting the most out of your RADEX geiger counter.

Whenever anything is measured for radiation, the mass / size of the object being scanned matters. Don't try to detect radiation in a single berry, a mushroom or a cup of water. Unless these are highly contaminated, there would be few particle streams emanating from a smaller volume hence the chances of detection are that much lower. Instead, try scanning an entire basket-full of produce, or a tank of water - the number of particle sources would be that much greater and easier to detect.

If it's fish your are measuring, try to have as much of that tuna as possible.

Turn the unit on and place it right next to the object (you can use a simple plastic bag to protect the unit - that won't effect sensitivity) for about 40 seconds. Then move a few inches to the side, and so on: continue displacing the detector by the distance of its width every minute or so, moving alongside of the object being scanned. So basically from head to tail. That would give you the highest chances of detection.

However, please keep in mind, that even if after scanning it this way, there is still a chance that it may contain radioactive elements that are above the permissible levels for digestion. 

This is why we NEVER recommend to use Geiger counters for food testing unless in dire situations.


We hope this clarifies matter a bit.

**Q: Does it use a cylindrical GM or a PANCAKE GM tube? 
What is the best measure of the tube life that you can give parameters to? Thanks!**
A: Cylindrical low voltage SBM20-1 tube.  Only does Beta and Gamma.  Its does work well.  A nuclear plant recently had a leak about 245 miles north of me, and it went bats as I was downwind and it showed elevated radiation at 6 times my normal background for 45 seconds so I know I caught a wisp of it.  This is not professional lab equipment, but is good value for what I paid for it.  The battery life is awesome too with LSD rechargeable NiMH AAA batteries.  I run it 24/7.  At this price, I do not really care about tube life.Just do not expect professional grade results from it, but it is good enough and a good value for the money.

**Q: what are the minimum sensitivities for beta/gamma?  IE: how many KeV in those bands?**
A: Gamma: 0.1 - 1.25 MeVBeta: 0.25 - 3.5 MeV

**Q: where is this product poduced and manufactured**
A: According to the radiation certificate that is included in the package, the RD1503+ monitor is manufactured by the QUARTA-RAD Ltd company in Moscow, Russia.  http://quarta-rad.ru

## Customer Reviews

### ⭐⭐⭐⭐⭐ A fine device for common folks, ie non-professionals, with a good bang for your buck.
*by O***. on February 3, 2020*

Final verdict (long version) - it’s easy to use (because of large buttons and a large screen); - fairly accurate (depending on the level of radiation); and the main limitations are: - no data transfer - limited detection range (up to 9.99, which is good enough for everyday stuff). I have other RADEX devices and I know my way around a geiger counter / radiation detector. I test them all and compare results against uranium glass, a beta-radiation source, as well as just a common household kitchen countertops made of granite. All these units are calibrated using Cesium-137 isotope, which is the most common byproduct of a nuclear disaster. So that’s good. On the other hand, the sensor (a Geiger-muller tube SBM-20-1 in this case) won’t be as precise with other sources of radiation such as Uranium, Strontium or Radium. Also, don’t expect these units to detect electromagnetic non-ionizing waves like microwaves, wi-fi or a smartphone, because those are a totally different types or radiation (see light, etc.). At the same time this not a big deal and almost trivial for a non-professional who does not give a damn about isotopes or the physics of radiation and simply want to know “if it’s hot or not”. The good thing here is that the higher radiation levels are, the more accurate this unit gets, so that’s good. Another good thing is that as soon as you turn it on, no additional setup is required. Push the ON button, wait for 15 seconds, get your first reading. Wait another minute for the most accurate measurement available. I emailed their customer support, got a walk-through. It really is fine for 95% of the people out there looking for a radiation detector “just in case” or simply out of curiosity. Sensitivity is fine against several the samples I tested it on, same goes for accuracy across multiple radiation levels and reliability in field conditions. Just try not to get it wet.

### ⭐⭐⭐⭐⭐ Small, Inexpensive, Works exactly as advertised
*by G***L on September 4, 2013*

The first thing I did is a test. And it worked! A test was to see how this Geiger Counter works around the house, at work (major construction project) and with geological samples I know to be slightly radioactive (natural granite, for example). It works. It does exactly what is promised and you can see the Geiger reacting to its surroundings in real time (a small graphic is pictured on the side of the screen). Pros: The price is much lower than anything else I've seen on the market. Almost any other Geiger is circa 400 dollars. Seriously. This one takes active readings, vibrates (or clicks) if those readings are higher than the threshold level. Has background lighting so you can see the screen in a dark basement, and measures in new micorsiverts as well as in roentgens (the ones I'm more familiar with). Sensitive to the materials I have tested it on. Cons: It is not initially clear which way the batteries should be inserted. Apparently both AAAs should be facing the same way - the + side up (which is unusual). Also, there is a graphic on the side of the screen in the shape of a square that keeps drawing the lines as the Geiger is taking readings. You get the most accurate reading after 40 seconds or so when the entire square is drawn out. This took some trial to understand and is not apparent from he manual. Conclusion: a solid, rugged little instrument that is inexpensive and does the job right. I have tested it back and forth and so far I'm happy with the results. A solid recommendation.

### ⭐⭐⭐⭐ Really depends on what you need it for. Hardcore preppers probably want to keep looking.
*by O***T on January 30, 2017*

Probably the nicest Geiger counters you can get for the price. Acquisition is fairly slow and the interface is a tad clunky, but it is not difficult to figure it all out. The styling is cheap, but then, it's not exactly a fashion accessory. It is not particularly rugged, so you don't want to drop it on the ground or expose it to elements. But before you buy, make sure that the upper range of the unit (9.99 uSv/h) fits your intended use. If you are interested in testing foods and detecting other weak sources of radiation, it may fit the bill. On the flip side, if you are buying it to be able to assess the consequences of a major nuclear accident nearby, you may find it the device to be inadequate, since it maxes out at a level that can be still pretty safe for extended periods of time. At 9.99 uSv/h, you're still under 90 mSv after a full year, and that probably won't even increase your cancer risk, let alone causing more serious effects. So, if you're crossing a post-apocalyptic radioactive wasteland, and want to be able to tell mildly radioactive spots from the ones that can kill you in a matter of hours or days, this is not the tool to have in your bag. Radex One and Radex RD1212 units go all the way up to 999.9 uSv/h and may be a better deal in that sense (although even 999 uSv/h is not immediately life-threatening).

## Frequently Bought Together

- RADEX RD1503+ High Accuracy Geiger Counter without Dosimeter, Radiation Detector
- GQ GMC-500+ (Plus) Geiger Counter Nuclear Radiation Detector Monitor Beta Gamma X-Ray Dosimeter

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-03-04*