Help us process your request quickly. Please indicate the required quantities and specifications (brand, model, operating range) of the equipment you wish to purchase or calibrate. For sales, if you do not have a preference for a brand or model, please indicate the operating range and required precision. Ex1. Please quote the sale / calibration of 3 Airflow Manometer FLUKE 922 (brand and model). Ex2. Please quote the sale of a 0-10% Brix refractometer. Precision. ± 0.1%. Resolution.