Monitor-4

Monitor 4 Handheld Radiation Alert Detector by SE International

The M4 and M4EC 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).Click here for Original Monitor 4. Click here for USB Model.

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

Monitor 4:

Monitor 4EC:

Monitor 4EC Handheld Radiation Alert Detector by SE International

The M4 and M4EC 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).Click here for Original Monitor 4. Click here for USB Model.

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

Monitor 4:

Monitor 4EC:

Monitor 4ECUSB Handheld Radiation Alert Detector with Mini-USB Option by SE International

The M4 and M4EC 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). Click here for Monitor 4 without USB option.

Monitor 4USB Handheld Radiation Alert Detector with Mini-USB Option by SE International

The M4 and M4EC 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). Click here for Monitor 4 without USB option.

Observer Software by SE International

The New Observer USB is a free version of the Observer software that runs on Windows®. It can be used with The Ranger, The Ranger EXP, & The Monitor 200 Radiation Detectors. The Observer USB reads in Counts, CPM, and CPS, as well as μR/hr, mR/hr, and μSv/hr and has the ability to collect, log, and perform statistical analysis on the data received. No Mac or WinRT versions available. However, for info about running windows on an Apple computer, please click here.

Free Download of the Observer USB Software:

Observer USB Software 1.3.0.8

Downloaded Data Sample

Previous Revision:
Observer USB 1.1.1.0