Survey meters consist of a detector and a meter with a readout display. Gas-filled detectors all operate in the same general manner, where exposure to radiation causes the chamber gas to ionize. Different operating characteristics are achieved by varying the voltage at which the gas-filled detector operates. Scintillation detectors operate on the principle that a scintillator will give off faint pulses of light when exposed to ionizing radiation.  There are advantages and disadvantages to every type of survey meter; it is very important to select one that suits the intended application.

The radiation fields around most VEGA source holders are very low. Using a meter which has a scintillation probe would be best for low level surveys due to the increased sensitivity. Readings to be taken in the radiation beam or readings on source holders with larger sources may require use of a meter with a GM probe. Whatever meter is chosen, ensure the pre-operational checks are performed before using it.

Additionally VEGA Americas provides annual calibration services for meters from most manufacturers.