We are able to calibrate the following Intersonde products: Intersonde Pressure Transducer DAX22 Pressure Transducer GX22 Pressure Transducer HP28 Pressure Transducer HP30 Pressure Transducer K9010 Digital Display Please call us on +44(0)1159 003550 or email calibration@hydrotechnik.co.uk to discuss your requirements. Search for manufacturers of other instruments we can calibrate