Pressure rangeLow: 0~5,000 mmH2O
Low/Medium: 0~196.1KPa
Mid/High range: 0~1,667KPa
Accuracy± 0.3% (Full scale)
Time Interval1, 4,10, 20, 40 (minute)
1, 1.5, 2, 3, 4, 6, 12, 24 (hour)
UnitsPsi, kPa, kgf/cm2
mmH2O, mbar, mmHg
Other FeaturesDisplay remaining time of pressure test
Battery level
Print density control
Dimension (mm)195 (W) X 85 (D) X 40 (H)

SDM-2 is an instrument that is intended to measure gas pressure and gas tightness test for gas pipelines. It has proven to be an invaluable tool for KGS, Utility Companies, and construction companies. The instrument significantly saves time for users (SDM-2 just takes 4 minutes while Pressure Chart Recorder takes 30 minutes). It also has three sensors detecting low, medium, and high pressures. The internal printer provides a “hard copy” of the results.