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Technical Specifications


Ionizing Radiation Detection
LND 712 GM Tube:Alpha (>3 MeV), Beta (>50 KeV), X-Ray, Gamma (>7 KeV)
J614 GM Tube (GCA-03 series):Beta (>50 KeV), X-Ray, Gamma (>7 KeV)
Counting Range
GCA-07, GCA-06, DTG-01:1 CPM - 10,000 CPS
GCA-03 series:1 CPM - 5,000 CPS
Radiation Measurement Range
GCA-07, GCA-06, DTG-01 (Imperial):0.001 mR/hr to 1000 mR/hr
GCA-03 (Imperial):0.001 mR/hr to 500 mR/hr
Metric (GCA-07, GCA-06, DTG-01):0.01 µSv/hr to 10 mSv/hr
Metric (GCA-03):0.01 µSv/hr to 5 mSv/hr
Calibration
Factory calibrated to NIST traceable standards.
Sensor Types
Internal GM Tube; External Wand Probe ("W" models)
Display
16-character x 2-line LCD (CPM or CPS modes)
I/O Options
Headphone, External Speaker, External Power, 3.5mm Data Port (USB adapter optional)
Data Output
3.5mm stereo jack outputs Serial Data or TTL logic pulse for radiation logging.
Secondary Indicators
Audio clicks, LED visual indicator, headphone jack, external power jack.
Case Dimensions
GCA-07 Series:7½" x 4.1" x 1¼"
GCA-06, GCA-03 Series:5¾" x 3½" x 1¼"
DTG-01 Desktop:8¾" x 6½" x 2¾"
Power Supply
9V battery or 110-220 VAC external power supply (battery not included).
Random Number Generator
DTG-01 Only: Selectable ranges (1-2, 1-128), TTL serial output.