Designed specifically for laboratory, medical, & regulatory compliance applications that require higher sensitivity to α, β, & low-energy γ radiation
External Probe Surface Contamination Monitor
The carrying case has a clear window panel that provides a full view of the readout and count light and access to the switches. It includes convenient hand straps and a belt loop for carrying the instrument and a small pocket for a check source.
The probe can be attached to the carrying case for one-handed operation if desired. The protective probe cover folds easily out of the way during one-handed operation.
Same as Inspector (below) except for external probe：
Detector: Same as Inspector Alert (below)
Enclosure: Anodized aluminum housing with coated, black foam grip
Power supply: 500-volt, in the probe head
Size: Approx. length: 22.2 cm (8.75 in.) Diameter: 7 cm (2.75 in.)
Connector: Amphenol tuchel connectors
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
mR/hr:０.001 to 100.0
CPM: 0 to 300,000
mSv/hr: ０.01 to 1,000
CPS: 0 to 5,000
Total: 1 to 9,999,000 counts
3500 CPM/mR/hr referenced to Cs-137
Smallest detectable level for I-125 is０.02 mCi at contact
Efficiency: For 4 pi geometry at contact
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%
Am-241 (5.5 MeV): 18%
Display updates every 3 seconds, showing the average for the past 30-second time period at normal levels. Averaging period decreases as 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
Beeper sounds the alert
User-adjustable alert level is set using three buttons
Accuracy: ± 15% up to 50 mR/hr; ± 20% up to 100 mR/hr
Anti-Saturation: Readout holds at full scale in fields up to 100 times the maximum reading
Temperature Range: -20° to +50℃, -4° to 122℉
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" ×3.2" ×1.2")
Weight: 350 grams (11.4 oz) including battery
I/O Ports: Stereo 3.5 mm jack for CMOS or TTL devices – sends counts to computer or data logger. Mono 2.5 mm jack provides electronic calibration input.
Count Light: Red LED flashes with each radiation event
Audio: Beeper beeps with each radiation event; can be muted
Options: Wipe test plate