Internal Halogen-quenched, uncompensated GM tube with thin mica window, 1.4-2.0 mg/cm2 areal density. Effective diameter of window is 45 mm (1.77 in.).
Operating Range mR/hr – .001 (1µR) to 100
CPM – 0 to 350,000
µSv/hr – .01 to 1000
CPS – 0 to 5000
Total Counts- 1 to 9,999,000 counts
Ranger front and back Energy Sensitivity Detects Alpha down to 2 MeV. Detects Beta down to .16 MeV; typical detection efficiency at 1 MeV is approx. 25%. Detects Gamma down to 10 KeV through the detector window. 3340 CPM/mR/hr (137Cs). Smallest detectable level for 125I is .02 µCi at contact.
Anti Saturation Meter will hold at OVER RANGE in fields as high as 100 times the maximum reading.
Averaging Periods Display updates every 3 seconds. At low background levels, the update is the average for the past 30-second time period. The timed period for the average decreases as the radiation level increases.
Included with Ranger Option Carry Case Stand Carrying Case Stand Observer BLE Observer Software Observer BLE Software for Android Observer USB Software Extreme Boot Extreme Boot
Outputs
USB for use with Free Observer USB Software for PCs Bluetooth for use with the Free Observer BLE App for Android.
Count Light Red LED flashes with each radiation event.
Audio Indicator Internally mounted beeper (can be switched off for silent operation)
Power Requirements USB Power or Two (2) AA alkaline batteries (included). Approx. 800 hrs @ background.