The Inspector is a small handheld microprocessor based instrument which offers excellent sensitivity to low levels of alpha, beta, gamma, xrays. The digital readout is displayed with a red count light and audible beep, providing instant indications of the radiation level. Other benefits include an adjustable timer and external calibration controls.

Specifications

• Detector: 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.).

• Display: 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.Timed period for moving average decreases as the radiation level increases.

• Operating Range: mR/hr- .001 (1μR) to 100 mR/hr; μSv/hr- .01 to 1000; CPM- 0 to 300,000; CPS- 0 to 5000; Total/Timer- 1 to 9,999,000 counts

• Accuracy: mR/hr + 15% from 0 to 50 mR/hr; mR/hr + 20% from 50 to 100 mR/hr; CPM + 15% from 0 to 130,000 CPM; CPM + 20% from 130,000 to 300,000 CPM; (Referenced to Cs-137)

• Sensitivity to Common Isotopes: Typical GM tube efficiency for 4 Pi geometry at contact

Beta Isotopes Energy Efficiency

C-14 49 keV Avg. 156 keV 5.3%

Bi-210 390 keV Avg. 1.2 MeV max. 32%

Sr(Y)-90 546 keV and 2.3 MeV 38%

P-32 693 keV Avg. 1.7 MeV max 33%

Alpha

AM-241 5.5 MeV 18%

• Gamma Sensitivity: 3500 CPM/mR/hr referenced to Cs-137; Smallest detectable level for 1-125 is .02 μCi at contact

• Timer: Can set 1 minute sampling periods from 1 to 10 minutes. 10 minute sampling periods 10 to 60 minutes; 1 hour sampling periods from 1 to 24 hours

• Count Light: Red LED flashed with each radiation event

• Size: 150 x 80 x 30 mm (5.9" x 3.2" x 1.2")

• Weight: 225 grams (8 oz) including 1 nine volt battery