What is a photoionization detector (PID)?

A photoionization detector (PID) is a type of gas detector that measures volatile organic compounds and other gases in concentrations from sub-parts per billion to 10,000 parts per million (ppm). Photoionization detectors are highly accurate, efficient and inexpensive instruments for many gas and vapour concentrations. PIDs produce instantaneous readings, operate continuously and are commonly used as fixed and hand-held portable instruments.

Our bestselling PIDs:

Levitt-Safety carries a range of PIDs from Ion Science including brand names like Cub, Tiger and Tiger Select.


cub personal gas detector product image

Cub Personal VOC Gas Detector

  • Takes less than 13 seconds to respond to hazardous gases and vapours
  • High sensitivity detects down to ppb levels
  • Wide range gas detection from 0 to 5,000 ppm
  • Built-in humidity resistance with no need to compensate
  • Measures 480 compounds
  • Anti-contamination design for extended field operation
  • Two-year warranty when Cub registered online

cub tac personal gas detector product image

Cub TAC Personal Benzene Gas Monitor

  • Has a 10.0 eV lamp using a unique light filtering technology to give a reliable aromatic hydrocarbon concentration
  • Takes less than 13 seconds to respond to hazardous gases and vapours
  • High sensitivity detects down to ppb levels
  • Wide range gas detection from 0 to 5,000 ppm
  • Built-in humidity resistance with no need to compensate
  • Measures 480 compounds
  • Anti-contamination design for extended field operation
  • Two-year warranty when Cub registered online

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Tiger Handheld VOC gas detector product image

Tiger Handheld VOC Gas Detector

  • Humidity-resistant PID sensor for the most challenging environments
  • Detects VOCs from 0 up to 20,000 ppm
  • Fast two-second response time and quick clear down
  • Detects over 480 VOCs and toxic compounds
  • 24 hours of battery life during continual use
  • Large keypad and slim design allow one-handed operation
  • Easy to access sensor, electrode stack and lamps
  • Easily upgradeable via ION Science website
  • Wide range of accessories available

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Tiger LT Handheld VOC gas detector product image

Tiger LT Handheld VOC Gas Detector

  • Accurate results across all environments from 0 – 5,000 ppm
  • Patented humidity resistance to 99% RH – no compensation needed
  • Anti-contamination design minimizes drift and extends run time
  • Two-second response time and rapid clear down
  • Li-ion battery for up to 24 hours continuous operation
  • 6.5 hours battery charge time maximizes uptime
  • Batteries field replaceable, even in explosive environments
  • 95 dBA, bright LED and vibration alarms alert you to gases present
  • Intrinsically safe; meets ATEX, IECEx, UL and CSA standards

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Tiger Select Portable Benzene Gas Detector product image

Tiger Select Portable Benzene Gas Detector

  • Detects down to ppb levels
  • Selectively detects benzene with ION Science pre-filter tube
  • Built-in humidity resistance with no need to compensate
  • Anti-contamination design for extended field operation
  • Large battery capacity gives several days of use
  • Torch and back-lit keypad for low light conditions
  • Batteries field replaceable, even in explosive environments
  • 95 dBA, bright LED and vibration alarms alert you to gases present
  • Five-year warranty when instrument registered online

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What are photoionization detectors used for?

Handheld, battery-operated PIDs are widely used in military, industrial and confined working facilities for health and safety. Their primary use is for monitoring possible worker exposure to volatile organic compounds (VOCs) such as solvents, fuels, degreasers, plastics & their precursors, heat transfer fluids and lubricants during manufacturing processes and waste handling.

Portable PIDs are used as monitoring solutions for:

  • industrial hygiene and safety
  • environmental contamination and remediation
  • hazardous materials handling
  • ammonia detection
  • lower explosive limit measurements
  • arson investigation
  • indoor air quality, and
  • cleanroom facility maintenance.

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