SE International MONITOR 4-CPM Analog Radiation Detector, CPM

SE International, Monitor 4 Analog Radiation Detector, CPM

Monitor 4are compact, ergonomic, general purpose survey meters capable of detecting alpha, beta, gamma, and x-rays over 3 selectable ranges. A red count light flashes and a beep sounds with each event detected.

Features:

• Detector: Halogen-quenched uncompensated GM tube with thin mica window 1.5-2.0 mg/cm2 thick. Effective diameter of window is 9.1 mm (.36 in.).
• Operating Range: 0-.5, 0-5, 0-50 mR/hr 0-500, 0-5,000, 0-50,000 CPM
• Energy Sensitivity: Detects alpha down to 2.5 MeV; typical detection efficiency at 3.6 MeV is greater than 80%. Detects beta at 50 keV with typical 35% detection efficiency. Detects beta at 150 keV with typica 75% detection efficiency. Detects gamma and x-rays down to 10 keV typical through the window, 40 keV minimum through the case. (GRAPH 1). Normal background is 5-20 CPM.
• Accuracy: Typically ±15% of reading (Cs137)
• Display: Analog Meter holds full scale in fields as high as 100X maximum reading. CPM