---
product_id: 6272162
title: "Geiger Counter - Digital - Professional - Model # GCA-07W External Wand Probe - ANSI N323A Certification Ready- 0.001 mR/hr Resolution - 1000 mR/hr Range"
brand: "imagesco"
price: "11095 DH"
currency: MAD
in_stock: true
reviews_count: 5
url: https://www.desertcart.ma/products/6272162-geiger-counter-digital-professional-model-gca-07w-external-wand-probe
store_origin: MA
region: Morocco
---

# 0.001 mR/hr ultra-fine resolution 1000 mR/hr wide detection range American-made GM tube tech Geiger Counter - Digital - Professional - Model # GCA-07W External Wand Probe - ANSI N323A Certification Ready- 0.001 mR/hr Resolution - 1000 mR/hr Range

**Brand:** imagesco
**Price:** 11095 DH
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay ahead of invisible threats with pinpoint precision!

## Quick Answers

- **What is this?** Geiger Counter - Digital - Professional - Model # GCA-07W External Wand Probe - ANSI N323A Certification Ready- 0.001 mR/hr Resolution - 1000 mR/hr Range by imagesco
- **How much does it cost?** 11095 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/6272162-geiger-counter-digital-professional-model-gca-07w-external-wand-probe)

## Best For

- imagesco enthusiasts

## Why This Product

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

## Key Features

- • **USA-Based Tech Support:** Reliable assistance from experts, assembled in the USA
- • **Ergonomic Handheld Design:** Lightweight 1.46 lbs, compact for on-the-go professionals
- • **Broad Spectrum Sensitivity:** Captures low energy background & NORM radiation effortlessly
- • **Precision Radiation Detection:** Detects alpha, beta, X-ray & gamma with pinpoint accuracy
- • **ANSI N323A Certification Ready:** Meets professional regulatory standards for inspections

## Overview

The GCA-07W Digital Geiger Counter is a professional-grade handheld radiation detector featuring an American-made GM tube with ultra-fine 0.001 mR/hr resolution and a broad 1000 mR/hr detection range. ANSI N323A certification ready, it accurately measures alpha, beta, X-ray, and gamma radiation, making it ideal for regulatory inspections and safety monitoring. Compact and lightweight, it offers fast, reliable readings backed by USA-based tech support.

## Description

Full description not available

## Features

- HANDHELD PERSONAL NUCLEAR RADIATION DETECTOR. Fast, Accurate and Easy To Use. Detects a broad spectrum nuclear radiation, including low energy background radiation and radiation emitted from Naturally Occuring Radioactive Materials (NORM). Suitable for regulatory inspections. USA Tech Support. Assembled in the USA.
- ANSI N323A CERTIFICATION READY – Our ANSI certification is available at additional cost from the manufacturer.
- AMERICAN MADE GM TUBE: Detector Sensitivity LND712: Detects Alpha particles above 3 MeV in energy. Beta radiation above 50 KeV; X-Ray and Gamma radiation above 7 KeV.
- COUNTING RESOLUTION AND RANGE: 1 Count Per Minute (CPM) - 10,000 Counts Per Second (CPS).
- RADIATION RESOLUTION AND RANGE: 0.001 mR/hr resolution / 1,000 mR/hr Range (Imperial measurements); 0.01 uSv/hr resolution - 10 mSv/hr range (Metric)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 7.5 x 4.1 x 1.2 inches |
| Item Weight | 1.46 pounds |
| Manufacturer | Images SI Inc. |
| ASIN | B000796XSC |
| Item model number | GCA-07W |
| Is Discontinued By Manufacturer | No |
| Date First Available | October 1, 2001 |

## Images

![Geiger Counter - Digital - Professional - Model # GCA-07W External Wand Probe - ANSI N323A Certification Ready- 0.001 mR/hr Resolution - 1000 mR/hr Range - Image 1](https://m.media-amazon.com/images/I/619z4qf1AfL.jpg)

## Questions & Answers

**Q: Can this measure radiation in ocean fish?**
A: This is a complex question. The GCA-07W can detect alpha, beta, x-ray and gamma radiation. Checking fish or food for radioactive contamination is a little difficult and Geiger counters, (from us or any other manufacturer) is not the ideal instrument to do so, here's why. The GCA-07W Geiger counter can detect alpha radiation. However if the fish (or food) being tested has a alpha radiation emitter internally, the food itself will block the alpha radiation and stop it from being detected. If the alpha radiation contamination is on the surface of the fish (unlikely), it can be detected. Similarly, if the fish has a beta radiation contamination internally, let's say a SR-90 contamination,  the water in the flesh of the fish will effectively block the beta radiation from being detected. Again if the beta contamination is on the surface of the fish (unlikely), it can be detected. With gamma radiation the situation changes. Gamma radiation can penetrate the flesh of the fish to be detected. The problem arises is that low level contamination gamma radiation from let's say a CS-137 contamination will be indistinguishable from normal background radiation. So to test for this contamination , one method a laboratory may perform is a gamma spectroscopy (scintillation detector) to determine the source of the radiation.    In the case of testing for alpha and beta radiation mentioned before, a lab might incinerate the food or fish in question down to ash. Without the water blocking radiation it becomes easier to test the material for beta and alpha contamination.On the Images website we have a number of nuclear experiments and articles. We have an article on testing food for radioactive contamination that goes into greater detail than I can here.I hope this information helps.

**Q: Will this measure radon in your house?**
A: The GCA-07W is sensitive to alpha radiation given off by radon. However this is not the instrument to use to detect or measure Radon in the home. There are specialty instruments and equipment available for just this purpose.

**Q: Does it have an end sensitive wand?**
A: I'm not sure what you mean here. The wand has an open end that exposes the mica window of the GM tube for the detection of alpha particles. In the photograph the wand has a plastic end cap on it that I recommend you keep on unless you are specifically trying to detect alpha particles.  The mica window of the GM tube is thin and easily damaged.

**Q: Does this unit beep or click? I have seen mixed info. Could someone upload a video of it?**
A: That's an interesting question.  The audio output is a tone generator. But that audio output is pulsed quickly so the tone  sounds more like a click than a beep. Technically, they're both right.

## Customer Reviews

### ⭐⭐⭐⭐⭐ GCA-07W - Well Made and Easy to Use
*by G***2 on May 19, 2016*

I purchased a GCA-07W Geiger Counter through Amazon in Dec 2015. The Counter I received was delivered in perfect condition. Well made, easy to set up and use right out of the box. You can have the GCA-07W NRC certified if you feel it necessary. That says a lot about the accuracy of the product. I purchased the Charting Software and USB Driver Disc directly from Images SI Inc. after receiving the GCA-07W. Everything I needed to connect the GCA-07W to my Laptop or PC was included. I've been using mine for the better part of the last 5 months with no problems or issues. Works great and is easy to use. Images SI Inc. is a great vendor to deal with.

### ⭐⭐⭐⭐⭐ Images GCA-07W Geiger Counter
*by A***R on July 31, 2019*

When I received my GCA-07W, I was impressed with the quality of the manufacturing of the product.The wand is made of a thick lightweight plastic. The end of the wand has a metal screen that protects delicate mica window of the GM tube but allows alpha particles to reach the GM tube. It also has a friction fit wand cap that is an additional protection for the wand. The wand cap must be removed for detecting alpha radiation. For the detection of beta, x-rays and gamma radiation you can leave the cap on the wand.The front panel of the GCA-07W has toggle switch controls. Everything is clearly labeled. I love the toggle switches. The toggle switches snap into position which makes changing the settings intuitive and easy. These switches are so much better than those crappy membrane switches you see on other models. I hate pressing on a membrane switch and hoping the switch press is detected. In any case, that is something you don’t have to worry about with this Geiger counter.Aside from easy set up, I was even more pleased with its performance.I must also point out the customer service from the company is excellent. I needed a little help getting started with the Geiger counter. I was transferred to a technical support person who helped me understand how to take background radiation readings. I was also guided to the company’s online nuclear experiments. Now, I don’t remember most of the math I learned in school. But their experiment 1, not only teaches you the right way to measure background radiation. It teaches you, using basic math, how to calculate the Mean (average) and Standard Deviation of the background radiation, what this means and why it’s useful. They have a dozen or so experiments up on the web, I plan to work through them all and report back here what I find.The next thing I did with my Geiger counter was start testing some old materials I had lying around. I removed the cap and the Geiger counter picked up alpha radiation from some old radium clock faces I have. Then I checked an orange Fiesta ware plate. In both cases these samples caused the Geiger counter to emit a loud clear clicking that easily gets your attention.I installed the company’s free Geiger graphing software on my computer. I had a compatible USB cable to connect the GCA-07W to my Windows PC computer. I ran a background count for 30 seconds, then I put the wand by the Fiesta ware for 30 seconds. You can see from the picture, on the left side of the screen is normal background. The right side of the screen is the radiation picked up from the Fiesta ware. I have two other Geiger counters and the GCA-07W outperforms them hands down. I would recommend this unit to anyone needing a well-built accurate Geiger Counter.

### ⭐⭐⭐ The toggle switches are a poor design choice
*by B***. on September 29, 2021*

This unit is easy enough to use but has on major issue. The toggle switches on the front of the unit are quite vulnerable to breakage because they protrude out from the unit and could easily damage the switch if impacted from the side. There are many low-profile toggle switches available for use and would significantly improve the design. I recommend getting the uranium calibration tin to check the unit. I prefer the clicking sound of the older counters over the beeps on this unit.

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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-02-04*