G7c Calibration Service


We are an Authorised Blackline G7 Calibration Centre, and our calibration engineers are trained by Blackline Safety specifically in the calibration of their range of G7 gas detection devices. 

All G7 calibration is performed with Blackline calibration equipment.  When each G7 unit is calibrated details of the calibration are automatically uploaded to your LivePortal so you have an audit trail, and so that your LivePortal can remind you when the unit is next due for calibration.  We will also supply a hardcopy calibration certificate for your records.


Standard Gases £30.00 per unit

O2 (Oxygen)

H2S (Hydrogen Sulphide)

CO (Carbon Monoxide)

%LEL (Combustible)

Other Gases £50.00 per unit

Ammonia (NH3)

Sulphur Dioxide (SO2)

Chlorine (Cl2)

Note: The prices are per device, not per sensor.  If the device has multiple gas sensors, and includes both "standard" and "other" gas sensors, it will be charged at the more expensive rate.  If you have a lot of G7 units to calibrate please contact us to discuss possible discounts.