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Digilert 100  Handheld Digital Radiation Alert® Detector     
The Digilert 100 measures alpha, beta, gamma, and x-rays. Its digital display shows readings in your choice of counts per minute (CPM) or mR/hr, or in accumulated counts. A red LED flashes and beeper sounds with each count detected and when the radiation reaches a user set alert level.

Specifications

Detector
Halogen-quenched GM tube with mica end window. Mica window density 1.5-2.0 mg/cm2. Effective window diameter is .360 inch. Side wall is .012 inch thick.
Display
4-digit liquid crystal display with mode indicators. Display updates every 60 sec.
Count Light
Red LED flashes with each count.
Audio Indicator
Sounds with each count (can be switched off for silent operation).
Alert
Pulsating beeper sounds the alert. Three separate adjustable alert levels are used for mR/hr, CPM, µSv/hr:, and Total.
Outputs
Dual miniature jack sends counts to CMOS- compatible devices, including computers, data loggers, and educational data collection systems. Submini jack provides audio output to an external earpiece, amplifier, or tape recorder.
   
Operating Range
mR/hr - .001 (1µR) to 100 mR/hr
µSv/hr - .01 to 1000
CPM - 0 to 350,000
CPS - 0 to 5000
Total/ Timer - 1 to 9,999,000 counts
Gamma Sensitivity
1000 CPM/mR/hr referenced to Cs-1 37.
Accuracy
±10% typical (NIST), Typically ±15% of reading.     Energy Sensitivity
• Detects alpha down to 2.5 MeV; typical detection efficiency at 3.6 MeV is greater than 80%.
• Detects beta at 50 keV with typical 35% detection efficiency.
• Detects beta at 150 keV with typical 75% detection efficiency.
• Detects gamma and x-rays down to 10 keV typical through the window, 40 keV minimum through the case. Normal background is 5-20 CPM.
 
Anti-Saturation
Readout will hold at full scale in high radiation fields as high as 100 times the maximum reading.
Power
One 9-volt alkaline battery.
Battery Life
Battery life is typically 2000 hours at normal background radiation levels.
Temperature Range
-10° to +50°C (14° to 122° F)
Weight
117 grams (6.5 oz.) without battery.
Size
150 x 80 x 30 mm (5.9 x 3.3 x 1.2 in.).

Inspector+ Handheld Digital Radiation Alert® Detector     
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.

Specifications

Detector
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.
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. 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
Accuracy
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)
Outputs
Dual miniature jack drives CMOS or TTL devices: count to computer or datalogger. Submini jack input allows for electronic calibration
Anti-Saturation
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 approx.
2160 hours at normal background.
Temperature Range
-10ºC to 50ºC (14ºF to 122ºF)
Weight
Inspector: 275 grams (9.7 oz.) without battery.
Size
150 x 80 x 30 mm (5.9 x 3.3 x 1.2 in.).
Includes
Carrying Case, CE Certification
Warranty
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.  

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