Survey Meter ICS-331



Ionization Chamber Survey Meter ICS-331

Hitachi’s survey meters feature a clear and easy-to-read indicator, user-friendly control panel, and colorful, lightweight and compact design, offering outstanding precision and functionality as a survey meter. The meters are widely used in various radiation handling facilities, such as universities, laboratories, hospitals, and nuclear power plants. Choose one that best suits your needs and purposes from our extensive range of models.


Radiation detected Gamma and X
Beta (without cap)
Detector Internal ion chamber
Construction : PC/ABS plastic
Effective volume : Approx. 400 cm3
Effective window area : Approx. 45cm2
Beta window: Mylar film Approx. 4 mg/cm2
Beta shield: Thickness: Approx.500 mg/cm2
Measurement range Autoranging
1 μSv/h to 10 mSv/h
0.3 to 10 μSv
Acccuracy ±10 %±1 digit for the reference
Energy dependence 0.85 to 1.15 on 30keV to 2MeV (ref. 137Cs)
Display Analog (Autoranging) 0 to 10 , 100 , 1000 μSv/h, 0 to 10 mSv/h
0 to 10 μSv
Digital 0.0 to 99.9 μSv/h, 100 to 999 μSv/h, 1.00 to 9.99 mSv/h
0.0 to 9.9 μSv
Controls Five-button, POWER, ZERO ADJ., Sv/h ⇔ Sv, LIGHT, P.HOLD
Battery check Five-level-remaining-indication
Detector check High voltage check: displayed by pressing button
Power Four AA alkaline batteries
Battery life 100 hours or longer in continuous use
Environmental requirements in operation Tempareture : 0 to +40 degrees C
Humidity : 90%RH or less (Non-condensing)
Dimensions Approx. (W) 9 x (D) 17 x (H) 10 cm
Weight Approx. 620g (incl. batteries)