SE Monitor 4 Series

SE Monitor 4 Series

SE Monitor 4 Series Handheld Radiation Alert® Detectors

a ß y x

se-monitor-4

The Monitor 4 Series are 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. The Monitor 4EC offers a more linear reading for gamma and x-rays (above 40 keV).

Specifications:

  Monitor 4 Monitor 4EC
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 (0.36") Halogen-quenched GM tube, energy compensated sidewall 2mm thin filter. Thin mica window 1.5 - 2.0 mg/cm2 thick. Effective diameter of window is 9.1 mm (0.36")
Operating Range: 0 - .5, 0 - 5, 0 - 50 mR/hr, 0 - 500, 0 - 5,000, 0 - 50,000 CPM or 0 - 5, 0 - 50, 0 - 500 µSv/hr (SI Scale Meter Option).
Energy Sensitivity:

1000 CPM / mR/hr (Cs137). 4EC is the same as M4 except the energy response for gamma and x-rays through the detector sidewall is flat within +61% or -26% over the range of 40 keV to 100 keV and within +35% or -17% over the range of 100 keV to 1.3 Mev.

Both detect beta at 50 keV with typical 35% detection efficiency and beta at 150 keV with typical 75% detection efficiency.

Accuracy: ± 15% of reading (Cs137)
Range Switch: X1, X10, X100 and Battery Check
Display: Analog Meter holds full scale in fields as high as 100 times maximum reading. CPM & mR/hr scale. Optional SI Scale Meter Available.
Audio Indicator: Internally mounted beeper (can be turned off for silent operation).
Power Requirements: 9-volt alkaline battery. Approximately 2,000 hours at normal background.
Temperature Range: -20°C - 55°C (-4°F to 131°F)
Weight: 200 grams (7.1 oz.) 224 grams (7.9 oz.)
Ouputs: 3.5 mm headphone jack with pulse out.
Size: 209mm x 71mm x 50mm (8.2" x 2.8" x 1.9")
Includes: Carrying Case with Belt Clip
Options: SI Meter Option
Limited Warranty: 1 year limited Warranty

 

se-monitor se-monitor-4ec-energy-sensitivity
Monitor 4: Detects alpha down to 2.5 MeV; typical detection efficiency at 3.6 MeV is greater than 80%. Detects gamma and x-rays down to 10 keV typical through the window. 40 keV minimum through the case. Monitor 4EC: Detects alpha down to 2.5 MeV; typical detection efficiency at 3.6 MeV is greater than 80%. Detects gamma and x-rays down to 10 keV typical through the window (non-compensated). 40 keV through the sidewall.

 

Note: Please indicate if you want the unit in mR/hr with CPM scale or mR/hr with uSv/hr scale.

Description Part # Saved Price Select Option Add to
Monitor 4 RS-SE-MONITOR-4 $395.00
Monitor 4EC RS-SE-MONITOR-4EC $435.00
N.I.S.T calibration with the initial purchase of an instrument RS-SE-CAL $70.00
N.I.S.T re-calibration service on SEI units (only 7-14 day turnaround) RS-SE-RECAL $87.00