InspectorUSB Handheld Digital Radiation Alert Detector
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Now with an adjustable alert, the Inspector+ is a small, handheld, microprocessor-based instrument which offers excellent sensitivity to 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, external calibration controls and selectable alert.


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 (1.75 in.). Radiation symbol on front label marks the center of the detector.
4 digit liquid crystal display with indicators.
Averaging Periods
Display will update every 3 seconds. At low background levels, the update is the moving average for the past 30-second time period. The timed period for the moving average decreases as the radiation level increases

Gamma Sensitivity
3500 CPM/mR/hr referenced to Cs-137. Smallest detectable level for I-125 is .02 Ci at contact. Timer can set 1 minute sampling periods from 1 to 10 minutes.
Operating Range
mR/hr - .001 (1R) to 100 mR/hr CPM - 0 to 350,000
Sv/hr - .01 to 1000 CPS - 0 to 5000
Total/ Timer - 1 to 9,999,000 counts
mR/hr 10% typical (NIST), 15% max - 0 to 100
Sv/hr 10% typical (NIST), 15% max - 01 - 1000
CPM 10% typical (NIST), 15% max - 0 to 350,000
(Referenced to Cs-137)
Alert Set Range
mR/hr .001 - 50 and CPM 1 - 160,000
Count Light
Red LED flashes with each radiation event.
Audio Indicator
Internally mounted beeper (can be switched off for silent operation)
Dual miniature jack drives CMOS or TTL devices: count to computer or datalogger. Submini jack input allows for electronic calibration
Meter will hold at full scale in fields as high as 100 times the maximum reading.
Power Requirements
One 9-volt alkaline battery. Battery life is 2160 hours at normal background.
Temperature Range
-10C to 50C (14F to 122F)
Inspector: 275 grams (9.7 oz.) without battery.
150 x 80 x 30 mm (5.9 x 3.3 x 1.2 in.).
Carrying Case, CE Certification
1 year limited, 90 day Warranty on GM Detector
Utility Menu
The Utility Menu offers several options accessible by holding down the + button while turning the instrument on.
3 second (fast response)
Switches from mR/hr and CPM to Sv/hr and CPS
Reset the cal factor to 100.
Probe adjustment settings.
Adjust the CAL factor.
Reset all setting to default factory setting.

Back of Unit

"Observer" Datalogging Software Screen Shot

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