The Reed R3100 digital manometer measures gauge and differential pressure up to 100 psi. Provides accurate measurements in 11 different units of measure and is capable of taking gauge and differential pressure. | Features Measures gauge and differential pressure up to 100psi 11 selectable units of measure: psi, inH2O, bar, mbar, kPa, inHg, mmHg, ozin², ftH2O, cmH2O, kgcm² Measures gauge and differential pressure up to 30psi Displays pressure and real-time clock simultaneously Internal memory saves Max and Min measurements Data hold function Low battery indicator and auto shut off | Includes Digital Manometer 2 Connection Hoses Battery Hard Carrying Case | Specifications Measuring Ranges 100.0 psi2768 inH2O6895 mbar689.5kPa203.6 inHg5171 mmHg1600 ozin²230.7 ftH2O7004 cmH2O7.031 kgcm²6.895 bar Accuracy ±0.3% FS Resolution 0.1 psi2 inH2O4 mbar / cmH2O0.4 kPa0.2 inHg3 mmHg1 ozin²0.2 ftH200.004 kg/cm² / bar Repeatability ±0.2% FS Linearity/Hysteresis ±0.29% FS Max Pressure 150 psi Display 4-digit, Dual LCD Display Backlit Display Yes Data Hold Yes Min Yes Max Yes Differential Pressure Yes Response Time 2 times/sec. Internal Memory Yes Auto Shut-off Yes (after 20 mins/off) Low Battery Indicator Yes Power Supply 9V battery Product Certifications CE Operating Temperature 32 to 122°F (0 to 50°C) Storage Temperature 14 to 140°F (-10 to 60°C) Operating Humidity 10-80% Dimensions 7.2 x 2.8 x 1.2" (182 x 72 x 30mm) Weight 7.8 oz (220g) | Applications Troubleshoot heating ventilation and air conditioning (HVAC) systems and a variety of low-pressure pneumatic or gas systems Pressure transmitter calibration for process instrumentation Detect blockages in filters, condensers and chillers (water filter steam power plant) Testing of pressure switches and other relief devices Calibrating pressure transmitters Calibrating pressure recorders | Documents R3100 Data Sheet Contact us to learn more about digital manometers