MONITOR 4EC - Analog Radiation Detector

The Monitor 4EC is an energy compensated, ergonomic radiation survey meter capable of detecting alpha, beta, gamma, and x-rays over 3 selectable ranges.
SKU: MONITOR 4EC
Manufacturer part number: MONITOR 4EC
$435.00
$414.99

The Monitor 4EC is an energy compensated, ergonomic radiation survey meter capable of detecting alpha, beta, gamma, and x-rays over 3 selectable ranges. This detector is great for getting a linear response to gamma and x-ray. A red count light flashes and a beep sounds with each event detected. The Monitor 4EC offers a linear response for gamma and x-rays (above 40 keV).

 

 

Detector

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 (.36 in.).

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). 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 and beta at 150 keV with typical 75% detection efficiency. Detects gamma and x-rays down to 10 keV typical through the window (non-compensated), 40 keV through the sidewall.

Accuracy

Typically ±15% of reading (Cs137)

Monitor 4EC Energy Response Graph

 

Audio Indicator

Internally mounted beeper (can be turned off for silent operation).

Range Switch

X1, X10, X100, Battery Check.

Display

Analog Meter holds full scale in fields as high as 100X maximum reading. CPM & mR/hr scale. Optional SI Scale Meter Available

 

 

 

 

 


 

Outputs

Headphone, 3.5 mm jack with pulse out.

Includes

Carrying Case w/ Belt Clip

Options

SI Meter Option, Observer Software

Limited Warranty

1 year limited warranty

Monitor 4 Kits

Build your own Monitor 4! Learn about how a Geiger counter works!

 

Power Requirements

9-volt alkaline battery (included). Approx. 2,000 hrs. at normal background

Temperature Range

-20° to 55°C (-4° to 131°F)

Weight

M4: 200 g (7.1 oz) M4EC: 224 g (7.9 oz)

Outputs

3.5 mm jack with pulse out.

Size

209 x 71 x 50 mm (8.2 x 2.8 x 1.9 in.)

 

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