PerfectPrime AR1890P2, Digital Air Pressure Manometer to Measure Gauge & Differential Pressure ±13.79kPa / ±2 psi / ±55.4 H2O with pair of 304 Stainless Steel Static Tube 5.13" x 2.34" Length;

Features -Gauge & differential pressure -Measuring ranges 13. 79 kPa / 2 psi / 55. 4 H2O -11 selectable scales & units: inH2O, psi, bar, mbar, kPa, inHg, mmHg, ozin2, FtH2O, cmH2O, kgcm2 -High accuracy 0. 3% in full scale -Large LCD with backlight -Zero adjust & offset functions -MAX/MIN/AVG values with relative time stamps -Data Hold -Error codes for out of range indication -Low battery indication -Auto power off (can be disabled) -2 pairs of tubing included Specifications -Display: LCD -Accuracy: 0. 3% FSO (25°C) -Resolution: inH2O- 0. 01 , cmH2O - 0. 1, PSI - 0. 001, inHg - 0. 1. . . and others, please refer the manual -Repeatability: 0. 2% (Max 0. 5% FSO) -Linearity/Hysteresis: 0. 29% FSO -Maximum Pressure rating: 10 psi (but not the range of measurement) -Response Time: 0. 5 second typical -Low Battery Indicator: Yes -Over Range Indicator: Err. 1 -Under Range Indicator: Err. 2 -Operating Conditions: 0 to 55°C (32 to 122°F) -Storage Conditions: -1 to 60°C (14 to 140°F) -Power Supply: 1 x 9V Battery (not included) One set included -1 x Manometer 2 x Static Tube -2 pairs of tubing -1 x 3/8" NPT x 1/8" Barb Access Fitting -1 x Soft pouch -1 x Instruction Manual -Standard Factory Package