Our standard calibration and adjustment service for a differential pressure gauge against an NIST traceable reference. This service includes anything and everything required to adjust a gauge and re-calibrate it to within tolerances. That said, the gauge has to be "in working order," and our standard calibration service, although including adjustment, does not include repair or replacement of any pieces. If repair is required, we can provide an assessment and a quote to repair then gauge then calibrate after repairs. Calibration is only offered for Backflow Test Kits and only those that are seeking calibration of +/- 0.2 PSI ( the minimum accuracy required by USC, ASSE, AWWA, and pretty much all state / local jurisdictions )
The most efficient way to get your gauge calibrated by us would be to bring it to a local class by our sister company Kruger's Training Academy or possibly bring it a local instructor. You can mail them in, but honestly if you mail them and I am traveling or otherwise busy it is not a faster way to get your gauge calibrated. We understand that calibrations are often time sensitive, but we usually have a class in your general area relatively soon - Full course schedule is available online
If it is not possible to bring the gauge to a local class, you can mail it in, but we do not cover shipping or insurance. We have lost packages or packages arrive much later than expected in the past, also I might be traveling for classes or other reasons and not be available to do the calibration. If you need a calibration ASAP, I would not recommend mailing it to me because our next course is in weeks or a month, it could take that long if you mail it in. We do not include return postage, I would recommend mailing it UPS with insurance, and you can buy return postage at UPS and put it in the box along with a check for the $75 or a printed receipt where you paid below. The address to mail it will be Dustin Kruger, 108 First Ave, UPS Store #408, New York, NY 10009 - the UPS store line is required, that address also has apartments and one of them is 408 so like if you don't write UPS store it's possible that it would go to someone's apartment in that building.
Standard Calibration & Adjustment Service per terms above. NO POSTAGE OR GAUGE REPAIR INCLUDED.