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Handheld Digital Radiation Detector

Handheld Digital Radiation Detector

Product Code:Inspector USB and Inspector EXP+

Need more Info? (514) 354-2511 - 1-800-463-4363

Inspector+ Handheld Digital Radiation Alert® Detector
Now with an adjustable alert, the Inspector USB 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.


Inspector EXP+ Handheld Digital Radiation Alert® Detector
Now with a selectable alert, the Inspector EXP+ was designed for the requirements of emergency response personnel. It has the same valuable features, small size, and quality of the Inspector, but instead of the built-in detector, it has the added versatility of an external probe. The carrying case has a clear window panel providing full view of the readout, count light, and access to the switches. Convenient hand straps and a belt loop are provided for carrying the instrument. A small pocket is provided for a check source. The unique design of attaching the probe to the carrying case allows one-handed operation if desired. The protective probe cover folds easily out of the way during one-handed operation.



General Specifications
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 µCi at contact. Timer can set 1 minute sampling periods from 1 to 10 minutes.
Operating Range
mR/hr - .001 (1µR) to 100 mR/hr CPM - 0 to 350,000
µSv/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
µSv/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. 70db @ 1m.
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. UBS for use with observer UBS software.
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
-10ºC to 50ºC (14ºF to 122ºF)
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, Observer UBS Software
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 µSv/hr and CPS
  • Reset the cal factor to 100.
  • Adjust the CAL factor.
  • Reset all setting to default factory setting.


Xtreme Boot
Waterproof Case
Observer Software
Wipe Test Plate


Cat. No. Description
SEXTREMEBO Xtreme Protective Boot
SEWATPROCA Water Proof Case
SEOBSERVER Observer Software
SEWIPE-000 Wipe Test Plate (for inspector USB only)


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