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Radiation Alert Ranger EXP Detector

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SKU RANGER EXP Categories , Tag


The Radiation Alert Ranger EXP Detector is a maximum performance, lightweight, rugged nuclear radiation detector to use for surveys in the field or at your facility. The Ranger EXP is designed specifically for individuals operating in tough environments. The small, handheld Geiger counter offers excellent sensitivity to NORM and low levels of alpha, beta, gamma, and x-rays. The digital readout is displayed with a red count light and a beeper sounds with each count detected. Other features include an adjustable timer, selectable alert, and with the free Observer USB Software Family, you can download your collected data, and set alarms!

Each unit includes a 3 foot BNC Cable, carrying case, Xtreme boot, stand, mini-USB cable, Observer USB software, certificate of conformance.


Detector RAP-RS2 Probe, external halogen quenched uncompensated GM tube with thin mica window 1.4-2.0 mg/cm2 areal density
Operating Ranges mR/hr: .001 to 100
nSv/hr: .01 to 1,000
CPM: 0 to 350,000
CPS: 0 to 5,000
Total Timer: 1 to 9,999,000 counts
Outputs USB and Bluetooth 4.1 for use with included Observer Software and Apps RadResponder Ready
Built In Efficiencies 35Sulfer (S35), 90Strontium (Sr/y90), 137Cesium (Cs137), 32Phosphorus (P32), 14Carbon (C14), 131Iodine (I131), 60Cobalt (Co60) and Alpha
Accuracy (Cs137) Typically ±15% from factory, ±10% with NIST Source Calibration
Energy Sensitivity Alpha down to 2 MeV
Beta down to .16 MeV, Typical detection efficiency at 1 MeV is about 25%
Gamma down 10 KeV through the detector window, smallest detectable level for I125 is .02 µCi at contact
Anti Saturation Meter will hold at full scale in fields as high as 100 times the maximum reading
Alert mR/ht: .001 to 100
CPM: 1-350,000
Display Backlit LCD with mode indicators
Count Light Red LED flashes with each count
Audio Indicator Internally mounted beeper, can be switched to silent mode
Power 2 AA alkaline batteries or USB
Weight 1.25 pounds
Size 10.25″ x 2.7″ x 1.3″


Radiation Alert Ranger EXP Detector Datasheet

Additional information

Weight 2 lbs

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