ACOEM Tunnel Sensors Calibration kit advert

New VICONOX Calibration kit – available now

Tunnel Sensors offer six variants of the VICONOX tunnel air quality monitor. All VICONOX AQMs measure visibility along with a combination of gases including CO, NO, NO2 and NOx. To complement the monitors, six calibration / audit kits are now available to purchase for the specific variant of VICONOX installed.

All six kits comprise of three calibrated opacity filters to confirm the accuracy of the visibility readings.  We also offer sealed gas check cells for both CO and NO and a filter to check NO2 readings. All kits are issued with calibration certificates to confirm performance and expected measured values.

The filters and gas check cells are supplied in a robust case with precision cut foam inserts to keep your calibrations tools safe when not in use. There’s also a documentation area to store instructions and calibration certificates.

The kit is suitable for tunnel operators who maintain their own instrumentation and service and maintenance contractors that support tunnel sensors equipment.

If you would like more details, technical information or pricing please email


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