We supply general-purpose radiation detectors suitable for measuring environmental radiation levels and radioactive contamination, providing alerts for elevated radiation, inspecting radioactive facilities, and detecting and locating radioactive materials.
A general-purpose monitor based on a Geiger-Müller detector with a mica window, suitable for measuring alpha, beta, gamma and X-ray radiation during environmental inspections, X-ray leakage searches and general use. It includes an audible alarm that alerts the user when radiation levels exceed a preset threshold. The Monitor 200 is supplied with a rubber protective case to prevent damage from impacts.
The display can be switched between dose rate and count rate modes, with selectable units of µSv/h and counts per second (cps), or mR/h and counts per minute (cpm).
The instrument includes a timer that allows counts to be accumulated over a preset period. The dose rate reading updates every three seconds. The Monitor 200 is supplied with free “Observer USB” software for data download and display.
The new Observer USB software is a free version of the Observer suite compatible with Windows® 10 and 11, and tested on earlier versions. Observer USB records in counts, CPM and CPS, as well as µR/h, mR/h and µSv/h, with the ability to collect, log and perform statistical analysis of received data.
It can be used with the Ranger, Ranger EXP, Monitor 200, Monitor 1000EC and GammaView detectors, as well as earlier versions of the Radiation Alert SEI Inspector, Inspector EXP and Digilert 200 models.
You can view a presentation of the Observer software at the following link: YouTube: Observer software
The Monitor 4 is a compact and simple general-purpose monitor with an analogue display, based on a Geiger-Müller detector. It measures gamma and X-ray dose rates in sieverts per hour (mR/h version available) and also detects gamma, beta and alpha radiation in counts per second.
The Monitor 4EC version is also available, which provides an energy-compensated dose rate reading.
A general-purpose alpha, beta and gamma radiation detector designed for environmental measurements, radioactive contamination detection and radioactive material localisation. It is based on a Geiger-Müller detector with a mica window and a 45 mm diameter tube, providing enhanced sensitivity, particularly for surface contamination.
It includes an audible alarm. The display can switch between dose rate and count rate modes, with measurement units selectable between µSv/h and mR/h. Under normal background radiation, readings are updated every three seconds, showing the average over the last 30 seconds; this interval shortens automatically when radiation levels increase.
The device has a USB port and software that allows data to be displayed and analysed on a PC. Its memory includes reference data for common isotopes to calculate total activity in Bq.
This is a version of the Ranger model with an external probe, designed for detecting radioactive contamination, locating radioactive materials and performing environmental measurements. It is based on a Geiger-Müller detector with a mica window and a 45 mm diameter tube, offering improved sensitivity, particularly for surface contamination.
It includes an audible alarm. The display can switch between dose rate and count rate modes, and the measurement units can be changed between µSv/h and mR/h. Under normal background radiation, readings are updated every three seconds, showing the average over the previous 30 seconds; this interval shortens when radiation levels rise.
The device includes a USB port and software for displaying and analysing data on a PC. Its memory stores reference data for common isotopes to provide a total activity reading in Bq.
Nuclear / X-rays:
This website uses third-party cookies (Google Analytics) to obtain navigation statistics from site users anonymously; navigating our website implies acceptance of our cookie policy.