Geiger Counters
At PCE-Instruments you will find geiger counters, devices for measuring illumination, electro magnetic fields, solar radiation and solar activity. The geiger counters for electro magnetic fields, solar radiation and lux each day become more important due to the increased negative effects of the environment. geiger counters are used for both personal and professional for measuring such things as transformers, power lines and electrical devices. It is also used extensively in the industrial sector or in research and development. These geiger counters can be DIN ISO 9000 calibrated and certified and have other optional accessories available. A Geiger counter is an instrument that measures the radioactivity of an object or place. It is a particle detector that measure ionizing radiation.
It is usually made up of a tube that has a fine metallic wire through the middle. The space between them is isolated and filled with gas, and with a wire of about 1000 volts in relation to the tube. 
An ion or electron penetrates the tube (or an electron is released from the wall by x-ray or gamma), liberates electrons from the gas atoms which, due to the positive voltage of the central wire, are attracted towards the wire. In doing so, they gain energy, collide with the atoms and liberate more electrons, until the process becomes an avalanche that produces a detectable pulse current. Filled with a suitable gas, the flow of electricity stops by itself or even the electric circuit may help stop it. 
The instrument is called a “counter” because each particle that passes through it produces an identical pulse, making it possible to count the particles (usually electronically) but without telling us anything regarding its identity or energy (except that they must have enough energy to penetrate the walls of the counter). The Van Allen counters were made of a thin metal with isolated connections at the ends. If you don't find the geiger counters you are looking for, please contact us and we will help you find the best solution to suit your needs by calling our offices on: UK customers +44(0) 23 809 870 30 / US customers (561) 320-9162 and our technical staff will advise you regarding our measuring instruments. Our engineers and technicians will be happy to help you with the geiger counters, and of course, with the other products in the field of regulation and control, and scales and balances.

Here you can see geiger counters from these companies:

Technical specifications for Geiger Counters can be found at the following links:

- Geiger Counters Gamma-Easy 
  (Easy-to-handle geiger counters for the inspection, suitable for beginners)

- Geiger Counters GAMMA - SCOUT
  (Geiger counters with memory and software)

- Geiger Counters MKS-05
  (Geiger counters warn about a great amount of radiation in a body)

- Geiger Counters Radex RD1503 and RD1503+ 
  (Geiger Counter Radex RD1503 to detect gamma and RD 1503+ gamma - x-ray and beta radiation)

- Geiger Counters Radex RD1706 
  (Geiger Counter Radex RD1706 to detect gamma - x-ray and beta radiation, small construction)

- Geiger Counters Radkeeper RPK
  (Detects gamma and x-ray radiation, for protection of occupational safety)

 - Geiger Counters PM1208-M
  (Geiger Counters for measuring radioactivity, audible alarm function, use as an watch)

- Geiger Counters Alpha-Beta-Gamma SM-3-D
  (Geiger counters for the protection of mechanics and technicians)

- Geiger Counters Alpha-Beta-Gamma SM-5-D
  (Mobile geiger counters for measuring activities of alpha and beta fields)

- Geiger Counters Gamma Graetz ED150
  (Counters for the detection of X rays and Gamma rays, with warning function)

What is radioactivity?

In the late nineteenth century, Antoine Henry Becquerel discovered that the joints of uranium produced invisible emissions spontaneously without any external influence.

Also, this radiation can be determined in the case of the radio and other elements. Radiations can:

- Penetrate material.
- Blacken photographic plates.
- Cause fluorescence..
- Ionize gas, or make them electrically conductive.

Therefore this is known as ionizing radiation.  Especially important are alpha, beta and gamma radiation.

  Sources of ionizing radiation:

- The atomic nuclei of these elements – called radionuclides – are not stable. They decay and transform into a stable state, or rather,
  they transform without external effects in the nuclei of other radioactive nuclides.

- An energy emission in the form of particles or electromagnetic waves is produced  -  ionizing radiation.

- At the end of a decay series there is always a stable element. 

There are 236 known stable elements and about 2600 radionuclides.  The radionuclides come from naturally occurring radioactive materials or they can also be produced artificially.

This property is called radioactivity.

Examples of the variation of magnetic field with distance

Density of magnetic flow (B, in microteslas, µT), measurement taken at one meter from the floor, of a railway line's electrical transport system (the tower is not shown to scale). You can observe that the value "B" is reduced significantly when the distance to the line is increased. As such, in the vertical of the line, "B" can be reach values of up to 6 µT; at 15 meters from the line "B" will be reduced by half and for distances greater than 30 meters, "B" would be in the order of tenths of a microtesla.

You will find a detailed explanation about radio activity if you follow this link or if you click on the image to the left. There are a wide range of uses for geiger counters, such as in nuclear plants, hospitals (for radiology), in construction safety, in the food industry (for food conversation using radiation) or in testing wood (when importing). As you can see, geiger counters can be used for many application in a variety of fields.

If you wish to view or print a selection of geiger counters from our catalogue, click the PDF symbol.

Below you will find an overview of the different product groups of measuring instruments

Below you will find an overview of the different product groups of scales and balances