DETECTS IONIZING RADIATION:
GCA-07, GCA-06 series and DTG-01 (LND 712 GM Tube)
Alpha particles above 3 MeV in energy. Beta radiation above 50 KeV; X-Ray and Gamma radiation above 7 KeV.COUNTING RANGE: CPM is Counts Per Minute; CPS is Counts Per Second
GCA-07 series - 1 CPM To 10,000 CPS
GCA-06 series - 1 CPM To 10,000 CPS
DTG-01 - 1 CPM To 10,000 CPS
GCA-03 series - 1 CPM To 5000 CPS
RADIATION RANGE:
Imperial Measurements
GCA-07 series - 0.001 mR/hr resolution to 1000 mR/hr Range
GCA-06 series - 0.001 mR/hr resolution to 1000 mR/hr Range
DTG-01 - 0.001 mR/hr resolution to 1000 mR/hr Range
GCA-03 series - 0.001 mR/hr resolution / 500 mR/hr Range
Metric Measurements
GCA-07 series - 0.01 uSv/hr resolution - 10 mSv/hr range
GCA-06 series - 0.01 uSv/hr resolution - 10 mSv/hr range
DTG-01 - 0.01 uSv/hr resolution - 10 mSv/hr range
GCA-03 series - 0.01 uSv/hr resolution - 10 mSv/hr range
NIST TRACEABLE CALIBRATION:Factory calibration using a NIST traceable radiation source to ensure accurate radiation measurements.
SENSORS – INTERNAL GM Tube /EXTERNAL Wand Probe:
Models ending in "W" have an external wand containing GM Tube.
LND 712 Geiger Mueller (GM) Tube has a .38 effective diameter mica (1.5-2.0 mg/cm2) window for alpha particle detection.
J614 GM Tube uses a tin oxide-coated glass tube with a 0.433" (11mm) effective diameter and 55mm length.
LCD DISPLAY: The 16-character x 2-line display. Shows particle detected count and radiation level in mR/hr or mSv/hr. Detection count is in either CPS or CPM. Time Switch selectable on front of Geiger Counter Panel.
CPS MODE: LCD displays Counts Per Second and Radiation level in millirads (mR) per hour (mR/hr) Imperial or in millisieverts (mS) per hour (mS/hr) Metric. Switch selectable on front Geiger Counter Panel.
CPM MODE: LCD display Counts Per Minutes and background radiation level in microrads (uR) to millirads per hour (mR/hr) Imperial. Or in microsivets (uS) to millisivets per hour (mS/hr) Metric. Switch selectable on front Geiger Counter Panel.
I/O OPTIONS: Headphones. External Speaker. External Power. 3.5mm Data Port for WIN PC and microcontroller interface. WIN PC requires optional 3.5mm to USB data cable.
DATA OUTPUT PORT: The 3.5MM stereo socket outputs either Serial Data (default) or a TTL logic pulse for each radioactive particle detected. Jumper switch selection. The serial output is the counts per second sent via USB cable (not included) to our Windows PC Geiger Counter Graphing program for charting and recording the measured radiation over time.
SECONDARY INDICATORS: Audio (clicks) and visual (LED) included. Also includes a headphone jack and a power jack for external power. A 110 VAC to 9V wall transformer power supply is included with all models except the GCA-03 series. 9V battery (mobile operation) not included.
CASE SIZE:
GCA-07W, GCA-07, and GCA-07W-DL
7 ½" (length) x 4.1" (width) x 1 ¼" (height)
GCA-06W, GCA-06, GCA-03W and GCA-03
5 ¾" (length) x 3 ½" (width) x 1 ¼" (height).
DTG-01 Desk Top Digital Geiger Counter
8 ¾" (length) x 6 ½" (width) x 2 ¾" (height).
POWER:
Handheld units use a 9V battery (not included). An alternative power option is a 110-220 VAC wall transformer power supply included with all digital Geiger counter models.
RANDOM NUMBER GENERATOR:
DTG-01 only - Range Selectable 1-2 and 1-128. TTL Serial output.