---
product_id: 48973715
title: "RADEX RD1503+ High Accuracy Geiger Counter without Dosimeter, Radiation Detector"
brand: "quarta"
price: "€ 1050.15"
currency: EUR
in_stock: true
reviews_count: 8
category: "Quarta"
url: https://www.desertcart.hr/products/48973715-radex-rd1503-high-accuracy-geiger-counter-without-dosimeter-radiation-detector
store_origin: HR
region: Croatia
---

# Dual audio & vibration alarms Fast 40-second low-level cycle Beta, Gamma & X-Ray detection RADEX RD1503+ High Accuracy Geiger Counter without Dosimeter, Radiation Detector

**Brand:** quarta
**Price:** € 1050.15
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay ahead of invisible threats with precision and speed!

## Quick Answers

- **What is this?** RADEX RD1503+ High Accuracy Geiger Counter without Dosimeter, Radiation Detector by quarta
- **How much does it cost?** € 1050.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/48973715-radex-rd1503-high-accuracy-geiger-counter-without-dosimeter-radiation-detector)

## Best For

- quarta enthusiasts

## Why This Product

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

## Key Features

- • **Precision You Can Trust:** Pre-calibrated with Cesium-137 isotope, validated by Japanese Consumer Protection Agency for unmatched accuracy.
- • **Instant Alerts, Zero Delay:** Immediate high radiation detection with fast 40-second low-level cycles keeps you ahead of danger.
- • **All-in-One Radiation Shield:** Detects Beta, Gamma, and X-Ray radiation seamlessly for total peace of mind.
- • **Discreet & Smart Notifications:** Dual alarm system with audio and vibration ensures you never miss a critical alert, even in noisy environments.
- • **Modern Metrics, Classic Reliability:** Measures in micro Sieverts and millirems, bridging modern science with trusted legacy units.

## Overview

The RADEX RD1503+ is a cutting-edge Geiger counter combining Beta, Gamma, and X-Ray detection in a compact, pre-calibrated device. Featuring rapid measurement cycles and dual audio-vibration alarms, it delivers fast, reliable radiation monitoring trusted by experts and validated by international standards.

## Description

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+).

Review: This instrument is very accurate. - When one has to rely upon an instrument in terms of H&S issues, it had better be good. Whilst this instrument isn't rated as a top professional Geiger counter, it is accurate enough to be used as a warning indicator, in terms of bringing in a professional team of experts. Some may consider it a little greedy on batteries, but that should be of no consequence considering its designers are up against the laws of physics. Geiger counters do tend to be energy greedy. I am most satisfied with this instrument, as it is very portable and may be inserted into quite a small space. I'd stake my reputation on it, if that's anything to go by. This is no cheap toy, it is the real thing.
Review: Genuine - A good product , is doing the job was made for . You can check on a smoke detector in your house wich have a soft radioactive part . I check to mine and i got a value of 0.30 - 0.50 to smoke detector . Is an indispensable item to add your surviving bag . Highly reccomand...

## Features

- Updated and improved 1503 with more features and new software
- Combined Beta, Gamma and X-Ray radiation detection
- Scale range of 0.05~9.99 uSv/h (Micro Sieverts per Hour) or millirems
- Audio alarm - Vibration Alarm - Backlight
- Pre-calibrated, Accurate, Fast (40 second cycle if low, Immediate if high)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | QUARTA |
| Model Number | RD1503+ |
| Colour | White |
| Product Dimensions | 10.16 x 5.84 x 2.54 cm; 90.72 g |
| Material | Plastic with metallic sensor and electronics |
| Special Features | Calibrated using Cesium-137 isotope. No additional calibration required, Detection range: 0.05 - 9.99 uSv/h, Measures in micro Sieverts (modern units) and in older units mRems, RADEX brand – since 1992, Two types of alarms: audio and vibration, Very accurate – tested by the Japanese Consumer Protection Agency |
| Item Weight | 90.7 g |

## Images

![RADEX RD1503+ High Accuracy Geiger Counter without Dosimeter, Radiation Detector - Image 1](https://m.media-amazon.com/images/I/61VlPPcS3mL.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

### ⭐⭐⭐⭐⭐ This instrument is very accurate.
*by A***R on 3 January 2020*

When one has to rely upon an instrument in terms of H&S issues, it had better be good. Whilst this instrument isn't rated as a top professional Geiger counter, it is accurate enough to be used as a warning indicator, in terms of bringing in a professional team of experts. Some may consider it a little greedy on batteries, but that should be of no consequence considering its designers are up against the laws of physics. Geiger counters do tend to be energy greedy. I am most satisfied with this instrument, as it is very portable and may be inserted into quite a small space. I'd stake my reputation on it, if that's anything to go by. This is no cheap toy, it is the real thing.

### ⭐⭐⭐⭐ Genuine
*by O***U on 25 October 2021*

A good product , is doing the job was made for . You can check on a smoke detector in your house wich have a soft radioactive part . I check to mine and i got a value of 0.30 - 0.50 to smoke detector . Is an indispensable item to add your surviving bag . Highly reccomand...

### ⭐⭐⭐ This for third party in the nuclear industry
*by M***K on 24 July 2020*

This I can tell you is better than many will till tell you if you are a third party qualifies to carry Type A packing group 3, 2 or 1 packages. This unit is spurious to say the least accuracy but instantly and also over time because it rests itself, it does show what levels of radiation you are involved in. All in all for the price, top piece of kit. (the readings I get from this true with units that scan my vehicle cab before journey and scan the same)

## Frequently Bought Together

- RADEX RD1503+ High Accuracy Geiger Counter without Dosimeter, Radiation Detector
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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-24*