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Toxic Gas Detectors
Three S Instruments Pvt Ltd.
Three S Instruments Pvt Ltd.

The world’s most advanced PID detectors
…just got better!
With Patented `Fence Electrode’ Technology

Toxic Gas Detectors
Phocheck +

The advanced range of photoionisation detectors (PID) for the ultimate in VOC detection
  • Simple to use PID’s from
  • Choice of detection range 0.1 – 4,000 ppm up to 1 ppb – 10,000 ppm
  • Fully upgradeable in the range
  • ATEX approved
  • Rapid response and recovery
  • Humidity compensation
  • Data logging
  • Health and Safety monitoring
  • TVOC-Fixed VOC
    Monitor, ATEX Approved


    For fixed continuous total volatile organic compound monitoring
    • • Detection range 0 – 100 ppm or 0 – 1,000 ppm
    • • Scale 4 – 20 mA output
    • • ATEX approved
    • • Includes 10.6 eV lamp
    • • Easy access PID
    • • Simple calibration
    Toxic Gas Detectors

    Exclusive Representative in India


    Three S Instruments Pvt Ltd.
    J-110, West Patel Nagar, New Delhi-110008, NCT of Delhi, India
    Telefax: +91-11-25882080, 25886698
    Fax: +91-11-25887913