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0.001-100mR/hr
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0-350,000 CPM
0-5000 CPS
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Handheld Surface Contamination Meter
The Inspector Alert measures alpha, beta, gamma and x-radiation using a 2-inch pancake GM detector with high sensitivity to common beta and alpha sources.
The easy-to-read digital display shows readings in your choice of mR/hr, CPM, CPS, or ¦ÌS/hr. The Total/Timer feature allows timed readings from one minute to 24 hours for precise measurement of low level contamination. An audible alert sounds when the radiaiton reaches a user-adjustable level.
1.Quickly alerts first responders to the presence of harmful levels of nuclear radiation
2.Improves safety in the laboratory and in the field
3.Automatically compensates for GM tube dead time
4.Will not jam in high radiation fields
5.Meets CE certification requirements for Europe
Specifications:
Detector: Halogen-quenched Geiger-Mueller tube. Effective diameter 1.75 (45 mm). Mica window density 1.5-2.0 mg/cm2.
Display: 4-digit liquid crystal display with mode indicators
Operating Range:
mR/hr: .001 to 100.0
CPM: 0 to 350,000
Total: 1 to 9,999,000 counts
¦ÌSv/hr: .01 to 1,000
CPS: 0 to 5,000
Gamma Sensitivity: 3500 CPM/mR/hr referenced to Cs-137
Smallest detectable level for I-125 is .02 ¦ÌCi at contact
Efficiency: For 4 pi geometry at contact
Beta
C-14 (49 keV avg. 156 keV max.): 5.3%
Bi-210 (390 keV avg. 1.2 MeV max.): 32%
Sr-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%
Averaging Periods: Display updates every 3 seconds, showing the average for the past 30-second time period at normal levels. The averaging period decreases as the radiation level increases. User can select fast 3-second averaging period
Timer: Can set 1-10 minute sampling periods in one-minute increments, 10-50 minute sampling periods in 10-minute increments, and 1-24 hour sampling periods in 1-hour increments
Alert: Beeper sounds the alert
User-adjustable alert level is set using three buttons
Accuracy: ¡À 15% up to 50 mR/hr; ¡À 20% up to 100 mR/hr
Anti-Saturation: Readout holds at full scale in fields up to 100 times the maximum reading
Temperature Range: -20o to +50o C , -4o to +122o F
Power: One 9-volt alkaline battery; battery life is average 2160 hours at normal background, average 625 hours at 1 mR/hr with beeper off
Size: 150 x 80 x 30 mm (5.9 x 3.2 x 1.2)
Weight: 323 grams (11.4 oz) including battery
I/O Ports: Dual miniature jack for CMOS or TTL devices, sending counts to computer or data logger. Submini jack for electronic calibration.
Count Light: Red LED flashes with each radiation event
Audio: Beeper beeps with each radiation event; can be muted
Options: Wipe test plate
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