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โก Stay ahead of radiation risks with the Ranger โ precision meets power!
The Radiation Alert Ranger is a compact, rugged Geiger counter featuring a 2" Geiger Muller detector with exceptional sensitivity to alpha, beta, gamma, and X-rays. It offers Bluetooth connectivity paired with free Observer BLE and USB software for advanced data logging and customizable alerts. Powered by 2 AA batteries and housed in a protective boot, itโs designed for industrial and field use, delivering lab-quality radiation detection in a portable form factor.




| Customer Reviews | 4.4 out of 5 stars 7 Reviews |
T**L
Very nice, well made unit, sensitive to radiation
The ranger is a very nicely built unit, and it includes both a protective rubber boot and a carrying case with belt clip. It also has a plastic stand base and wrist lanyard. The unit is very easy to use, and the screen's easy to read. It have various display modes such as CPM, mR/hr, micro Sv/hr, etc. Note that everything other the CPM may be wildly wrong for anything other than Cesium 137 for which it was calibrated. I also bought a uranium sample to use for testing/demonstration. It came in a metal container with a certification document from "Images SI Inc." stating that they tested the sample and measured 1,682 CPM using their GCA-07W geiger counter. To avoid contamination, I left the sample in its plastic bag while I tested it with my Ranger Alert. Here are my results: Ranger readings: Direct contact with the plastic bag = 9,400 CPM Separated by a piece of paper = 6,400 CPM With plastic cap covering detector hole = 1,650 So a semi-direct reading through the plastic bag got 9,400 CPM with the Ranger and 1,680 with their GCA-07W. My conclusion is that the Ranger is much more sensitive -- probably due to the pancake GM tube, the fine mesh protector, and the proximity of the grid to the GM tube.
N**E
Excellent unit
Excellent unit. Tested against tritium and uranium ore control. My only complaint is that when you turn on the display backlight it only stays on for 5 seconds or so, thatโs annoying, but overall the unit was recommended to me and I also recommended it. Excellent quality for less than $1000.
B**0
Professional grade radiation detector
Radiation Alert Ranger is for sure a professional grade device, very easy to use both as stand-alone and as PC connected radiation detector! It is equipped with a large 2โ pancake probe, not energy compensated, but user can select 8 built-in isotope efficiencies, Cesium 137 is the default. Bluetooth connection is possible only with Android devices, I hope also with iOS in future. All the basic accessories are included.
Trustpilot
3 weeks ago
5 days ago