Radiation detector / Model number M901R-111A
This is a high-sensitivity type that can measure environmental radiation levels, making it ideal for checking areas with low doses where there are no abnormalities compared to usual.
basic information
■Specifications Model Number: M901R-111A Measurement Type: γ(X) rays (above 50 keV) Detector: Csl(Tl) scintillation detector Measurement Range: 0.001 to 1.999, 2.00 to 19.99 μSV/h automatic switching Energy Characteristics: 60 keV to 1.25 MeV ratio against 137Cs calibration constant 0.5 to 2.0 Indication Error: Within ±15% of the calibration value for 137Cs Display: 4-digit LCD display Measurement Mode: Normal Mode: Digital display rate meter simulating an analog rate meter (programmable automatic time constant switching) AEMTM Mode: Rate display method dividing accumulated value by elapsed time with bush switch on Others: Counting sound monitor available (with ON/OFF switch), alarm function, zero suppress function, battery down function, overflow display Power Supply: AA alkaline batteries Battery Life: Over 70 hours of continuous use Operating Temperature and Humidity Range: 0 to +45°C, below 90% RH (no condensation) Dimensions: Approximately (W) 62 × (D) 27 × (H) 135 mm Weight: Approximately 220 g Composition: Main unit M901R-111A: 1 Accessories: 1 set (1 AA alkaline battery, 1 strap,
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Applications/Examples of results
● Compact (pocket-sized) and lightweight (220g) scintillation survey meter ● Accurately measures environmental γ radiation levels ● Capable of measuring low-energy γ rays (from 50keV) using CsI(TI) scintillator and ultra-compact photomultiplier tube ● Equipped with alarm function ● Uses commercially available AA batteries
