--- product_id: 60548946 title: "Ranger Radiation Detector | 2\" Geiger Muller Detector | Bluetooth With Free Observer BLE App | Protective Boot | Excellence in Radiation Detection,Blue Enclosure With black Protective Boot" brand: "radiation alert" price: "$1689.99" currency: USD in_stock: true reviews_count: 3 category: "Radiation Alert" url: https://www.desertcart.us/products/60548946-ranger-radiation-detector-2-geiger-muller-detector-bluetooth-with-free store_origin: US region: United States of America --- # 2" Geiger Muller Detector for precise radiation sensing Bluetooth connectivity with Free Observer BLE App Long-lasting 2 AA battery power for field reliability Ranger Radiation Detector | 2" Geiger Muller Detector | Bluetooth With Free Observer BLE App | Protective Boot | Excellence in Radiation Detection,Blue Enclosure With black Protective Boot **Brand:** radiation alert **Price:** $1689.99 **Availability:** ✅ In Stock ## Summary > ⚡ Stay ahead of radiation risks with the Ranger — precision meets power! ## Quick Answers - **What is this?** Ranger Radiation Detector | 2" Geiger Muller Detector | Bluetooth With Free Observer BLE App | Protective Boot | Excellence in Radiation Detection,Blue Enclosure With black Protective Boot by radiation alert - **How much does it cost?** $1689.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/60548946-ranger-radiation-detector-2-geiger-muller-detector-bluetooth-with-free) ## Best For - radiation alert enthusiasts ## Why This Product - Trusted radiation alert brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Custom Alerts:** User-programmable alarms keep you instantly informed - • **Rugged & Ready:** Lightweight, durable design with protective boot for any environment - • **Smart Data Management:** On-board memory + free USB & BLE apps for seamless data tracking - • **Unmatched Sensitivity:** Detects alpha, beta, gamma & X-rays with lab-grade precision - • **Versatile Display Modes:** Multiple units (CPM, mR/hr, µSv/hr) tailored for professional use ## Overview 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, it’s designed for industrial and field use, delivering lab-quality radiation detection in a portable form factor. ## Description The Ranger offers maximum performance in a lightweight, rugged solution for surveying at the facility or in the field. The Ranger has been designed for industrial environments, but it still has all of the features you 've come to love in the lab. The Ranger is a small, handheld, digital instrument which offers excellent sensitivity to low levels of alpha, beta, gamma, and X-Rays. It has built in efficiencies for common Isotopes to calculate activity in bq and DPM. It has a backlit digital display, a red count light, and a beeper that sounds with each count detected. Other features include selectable alert levels, an adjustable timer, and an optional wipe Test plate for swipes. Internal memory and the free observer USB software allow you to download your data, set computer alarms, and calibrate your instrument. Review: 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. Review: 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, that’s annoying, but overall the unit was recommended to me and I also recommended it. Excellent quality for less than $1000. ## Features - Excellent sensitivity to alpha, beta, and gamma - On-board memory to record collected readings - User programmable alerts - Free observer USB software - Free Observer BLE App. - Optional wipe test plate for swipes ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.4 out of 5 stars 7 Reviews | ## Images ![Ranger Radiation Detector | 2" Geiger Muller Detector | Bluetooth With Free Observer BLE App | Protective Boot | Excellence in Radiation Detection,Blue Enclosure With black Protective Boot - Image 1](https://m.media-amazon.com/images/I/6122tKg3T4L.jpg) ![Ranger Radiation Detector | 2" Geiger Muller Detector | Bluetooth With Free Observer BLE App | Protective Boot | Excellence in Radiation Detection,Blue Enclosure With black Protective Boot - Image 2](https://m.media-amazon.com/images/I/61JcF7ffNQL.jpg) ![Ranger Radiation Detector | 2" Geiger Muller Detector | Bluetooth With Free Observer BLE App | Protective Boot | Excellence in Radiation Detection,Blue Enclosure With black Protective Boot - Image 3](https://m.media-amazon.com/images/I/61Fg2TtOGYL.jpg) ![Ranger Radiation Detector | 2" Geiger Muller Detector | Bluetooth With Free Observer BLE App | Protective Boot | Excellence in Radiation Detection,Blue Enclosure With black Protective Boot - Image 4](https://m.media-amazon.com/images/I/51OE6-fWdNL.jpg) ![Ranger Radiation Detector | 2" Geiger Muller Detector | Bluetooth With Free Observer BLE App | Protective Boot | Excellence in Radiation Detection,Blue Enclosure With black Protective Boot - Image 5](https://m.media-amazon.com/images/I/61oS7okAqgL.jpg) ## Questions & Answers **Q: Does it detect radiation in pipe and scrap metal?** A: Yes, if radioactivity is present, this will detect it. **Q: Does this meter come with carrying case, xtreme boot, lanyard, stand, batteries, mini-usb cable, observer usb software, and coc?** A: no, those items are only included with the EXP model. **Q: Does it detect gamma and x ray in CPM** A: Yes it does. If you go to the web site (swing.com) and look up the energy sensitivity specs, it says it is good down to ~ 10 keV and has a plot of relative sensitivity vs photon energy. It quotes a ~3300 cpm per mR/hr for Cs-137. You can test it your self with a smoke detector and a can of nosalt salt substitute. The smoke detector has ~ a microCurie of Am-241 which is an alpha emitter with a 60 keV gamma-ray. If you look into the side vents of the smoke detector, you should see a metal cylinder about 1” in diameter. This is the ionization detector that contains the Am. The alphas don’t penetrate the container and you can leave the cover on the ranger’s pancake detector when you put it on the smoke detector. The nosalt shaker is potassium chloride which has some K-40 activity. This is a beta emitter which also emits some gamma-rays. If you place the ranger’s pancake detector against the nosalt container with the pancake’s cover off you can detect mostly the betas. If you measure it with the cover on you cut out the betas and are counting mostly gammas. **Q: I want to ask where the item was made (country)? also is this applicable also for detecting rad leakage for product inspection machine like xray?** A: It can measure even low energy X-ray about 20keV. Of cause, a dose equivalent is not reliable at that energy, but can measure count rate. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very nice, well made unit, sensitive to radiation *by T***L on September 12, 2019* 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. ### ⭐⭐⭐⭐⭐ Excellent unit *by N***E on January 4, 2021* 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, that’s annoying, but overall the unit was recommended to me and I also recommended it. Excellent quality for less than $1000. ### ⭐⭐⭐⭐⭐ Professional grade radiation detector *by B***0 on August 24, 2019* 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 2” 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. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/60548946-ranger-radiation-detector-2-geiger-muller-detector-bluetooth-with-free](https://www.desertcart.us/products/60548946-ranger-radiation-detector-2-geiger-muller-detector-bluetooth-with-free) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-17*