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Guardian 2000 radiation detection kit
* Dosimeter GDK 400 (see specs below)
Specifications: GDK-400 Dosimeter
3cc CsI (TI) with Photodiode (Low channel)
Energy-Compensated PIN Diode (High channel)
Dose Equivalent Rate for 137Cs
1 R/h to 10 R/h (0.01 Sv/h to 0.1 Sv/h)
1 R to 999.9 R (0.01 Sv to 9.9 Sv)
None required. Periodic functional test recommended
Ci and 16 Ci 137Cs check sources.
Factory calibration available if needed.
Loud audible buzzer (85+ dB @ 30 cm)
Highly visible LED lights on both sides of LCD graphic display
Alarm threshold based on variations
User-programmable low and high alarm
30,000 data points (20 days at 60-second intervals)
User programmable, 1 to 3,600 seconds
Built-in Bluetooth radio interfaces with computer for datalog
download and configuration changes
-20 C to 50 C (-4 F to 122 F)
Temperatures above 50 C (122 F) will cause a
high-temperature error message
Passes drop test from 1.5 m (59")
Graphic LCD with 1.2" x 0.75" (30.5 mm x 19 mm) viewable
area can be flipped for view by user; Radiation intensity
displayed in cps or dosage rate in divisions of R/h or Sv/h
Dose rate, peak, min, total dose, battery status, time, temperature
Nonslip rubber housing with grippable ridges securely fits
4.92" x 2.68" x 1.38" (125 mm x 68 mm x 35 mm)
Rugged metal belt clip and wrist strap
*Specifications are subject to change
Detects alpha down to 2.5 MeV; typical detection efficiency at 3.6 MeV > 80%. Detects beta at 50 keV with 35% efficiency. Detects beta at 150 keV with 75% efficiency. Detects gamma and x-rays down to 10 keV through the window, 40 keV minimum through the sidewall. Normal background is approximately 10-20 CPM.
* 0-500, 0-5,000, 0-50,000 CPM
