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Turnkey Technologies iGAS - Internet Gas Monitor

Turnkey Technologies iGAS - Internet Gas Monitor


iGAS - Internet Gas Monitor

iGAS® is an internet gas monitor from Turnkey®. It has multiple gas sensors, capable of measuring up to 8 different gas species simultaneously. Gas sensors are housed in a shielded manifold and aspirated with an ultra-quiet pump, making it suitable for outdoor and indoor air pollution monitoring.


Using 4-electrode electrochemical cells, gas species including NOx, ozone, and sulphur dioxide are simultaneously measured with sensitivities of better than 10 ppb. Carbon dioxide is measured by a nondispersive infrared (NDIR) sensor, and VOCs (isobutylene) by a 10.6 eV photoionization detector (PID).


A built-in zero gas generator is used to eliminate zero drift in the cells, and software algorithms automatically correct for cross-interferences between the gas species. The zero gas scheme eliminates the effects of changes in relative humidity and ambient carbon dioxide which, in the past, have limited the performance of electrochemical cells at ppb levels.


iGAS connects to Turnkey’s AirQWeb cloud server, and can be used alongside our range of dust and vibration & noise instruments to allow integrated monitoring of a wide range of environmental measurements.

  • Specification

    • Records up to 8 gas species simultaneously
    • Automatic zeroing virtually eliminates drift
    • Integrated with AirQWeb for live monitoring
    • Can be used alongside Turnkey dust monitors
  • Downloads

  • Delivery

    We aim to Delivery products with you within 4 weeks of receipt of order. However, in exceptional circumstances delivery may be up to 6 weeks due to manufacturer lead times. Please inform us if you require fast delivery as we will do our utmost to expedite your order.

  • Quantity Orders

    Please contact us directly to discuss quantity purchases and additional discounts.  We will subsequently provide you with a formal quote with the applied discount, which will be valid for 30 days 

  • Hire

    Many of the products you have seen are available for hire, so feel free to contact us if you would prefer to hire this instrument.

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