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Photo Ionisation Detectors (PID)

Photo Ionisation Detectors (PID) are portable gas and vapour detectors that detect a variety of Volatile Organic Compounds (VOC's) using a UV ionisation principal of operation. A PID can measure VOC's in very low concentrations from ppb (parts per billion) up to 10,000ppm (parts per million/ 1% Volume). The most common lamp ratings are 9.8eV, 10.6eV and 11.7eV. 

The 11.7eV lamp can measure the broadest spectrum of VOCs yet it has the shortest life span. 

10.6eV is the most commonly used lamp because it has a 2-3 year lifespan and offers a wide detection of VOC gases

The 9.8eV PID lamp requires the lowest power and has the longest lifespan but is limited to the number of VOCs it can detect.

Therefore, 11.7eV lamps should only be used when it is necessary to detect VOCs above the 10.6eV spectrum

Our range of PID detectors are market leaders in their field. Each unit has its own specific features to suit specific applications such as the ToxiRAE PID designed to be worn for employee safety or the ppbRAE designed to point and measure to low ppb levels for environmental, HazMat, oil & gas or industrial safety.

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