Skip to main content
This instrument is the area monitor that measures the gamma dose rate in the working environment. Equipped with large LED display and loud buzzer alarm function, it is easy to see and hear the measurements from people nearby. Moreover, it is small and light weight enough to easily carry around.
|MAR-781 (high-sensitivity type)||MAR-782 (wide-range type)|
|Radiation detected||Gamma, X-ray|
|Measurement energy range||Approx. 50 keV to 6 MeV|
|Accuracy||Within ±10% (1 to 999.9 μSv/h)
±1 digit (0.1 to 0.9μSv/h)
|Within ±10% (0.01 to 99.99mSv/h)
±1 digit (0.001 to 0.009mSv/h)
|Counting system||Digital rate meter method, Moving average method|
|Alarm display output||Red LED lights up and buzzer turns on.
Numerical indication blinks
No-voltage contact output
|Data output||Conforms to RS-422, RS-232C, or current loop communication
(RS-422 output set at the factory. For RS-232C or current loop communication, internal wiring changed on request.)
|Analog output||0.1 to 1,000μSv/h, 4-decade log scale
0 to 1 VDC output
|0.001 to 100mSv/h, 5-decade log scale
0 to 1 VDC output
|Detector extension (Optional)||Up to 40 m using extension cable|
|Environmental requirements in operation||Temperature : 0 to ＋40 degrees C
Humidity : 90%RH or less (Non-condensing)
|Power||100VAC or 6 VDC
* Battery-operated model (MAR-783) is available. Please contact us for further details.
|100VAC or 6 VDC
* Battery-operated model (MAR-784) is available. Please contact us for further details.
|Dimensions||Approx. (W) 300 x (D) 55 x (H) 250 mm|
|Weight||Approx. 2.3 kg|
This website includes information intended for healthcare professionals.
Please note that all descriptions in this website conform to the Pharmaceutical and Medical Device Act in Japan as well as other laws and regulations in Japan. Model names, specifications and configurations of products in overseas market outside Japan may be different by the countries.