RADEX RD1503+ 3-In-1 Geiger Counter Radon Detector

Last updated: April 18, 2023


Don’t worry about missing alerts — this detector has both vibration and audio options. It’s a highly portable device that’s easy to use. It can also measure x-ray radiation as well as the amount of radiation built up over time.

We looked at the top Radon Detectors and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Radon Detector you should buy.

Product Details

Key Takeaway: You can always be informed about rising radon levels with this detector’s alert system.

In our analysis of 33 expert reviews, the RADEX RD1503+ 3-In-1 Geiger Counter Radon Detector placed 7th when we looked at the top 11 products in the category. For the full ranking, see below.

From The Manufacturer

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.

Expert Reviews


What reviewers liked

Highly accurate and easy to hold. A good solution in extreme temps. You don't need to calibrate it first.
It can also measure X-ray radiation.
Radex RD1503+ can also tell the level of radiation build over time. All you have to do is switch to accumulative dose mode.
This powerful Geiger counter can quickly check radiation background from many sources including non-edibles, interior premises, and the topsoil.
This device displays the dose-rate difference between the two figures, the mean and the background ones.
It is equipped with a vibration feature along with its audio alert, so it keeps you informed even when it is tucked away in a pocket.

What reviewers didn't like

Cannot be used in a wet environment.
Manual isn’t clearly laid out.
Maybe expensive compared to a few of its competitors.
Battery cover is poorly designed
View our Radon Detector buying guide for in-depth advice and recommendations.

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