The device is a professional digital manometer with high precision, wide range, high resolution, large screen display, and indoor temperature measurement.Features: - 11 selectable measurement units: inH2O, psi, mbar, kPa, inHg, mmHg, oz/in, ftH2O, cmH2O, kg/cm, and bar, for versatile use - Clear digital display with large LCD and backlight ON/OFF function for easy reading - Data Hold function for convenient data review and recording - User-friendly indicators including low battery warning, pressure unit indicator, and error codes for out-of-range detection - Reliable construction with imported pressure sensors, high-precision ADC, and low-power MCU - MAX/MIN function to view maximum, minimum, and average recorded values - Suitable for a wide range of applications such as natural gas pipelines, HVAC refrigeration and ventilation systems, mechanical hydraulics, plastic molding, ceramic manufacturing, biopharmaceutical processes, mining, and petrochemical industries Specifications: - Model: FU-P1 / FU-P2 / FU-P5 (optional) - FU-P1 Range and Resolution: - inH2O: 4.014, 0.001 - mbar: 10.00, 0.001 - kPa: 1.000, 0.001 - Pa: 1000, 0.1 - ftH2O: 0.334, 0.001 - mmH2O: 101.9, 0.01 - mmHg: 7.500, 0.001 - inHg: 0.295, 0.001 - FU-P2 Range and Resolution: - inH2O: 55.40, 0.01 - psi: 2.000, 0.001 - mbar: 137.8, 0.1 - kPa: 13.79, 0.01 - inHg: 4.072, 0.001 - mmHg: 103.4, 0.1 - oz/in: 32.00, 0.01 - ftH2O: 4.612, 0.001 - cmH2O: 140.6, 0.1 - kg/cm: 0.140, 0.001 - bar: 0.137, 0.001 - FU-P5 Range and Resolution: - inH2O: 138.3, 0.1 - psi: 5.000, 0.001 - mbar: 334.7, 0.1 - kPa: 34.47, 0.01 - inHg: 10.18, 0.01 - mmHg: 258.5, 0.1 - oz/in: 80.00, 0.01 - ftH2O: 11.53, 0.01 - cmH2O: 351.5, 0.1 - kg/cm: 0.351, 0.001 - bar: 0.344, 0.001 - Material: ABS - Accuracy: FU-P1 (1.5% FSO); FU-P2, FU-P5 (0.3% FSO @ 25C) - Repeatability: 0.25% FSO - Response Time: 0.5 second typical - Over Range Indicator: EER1 or EER2 - Auto Power-off: 15 minutes - Operating Conditions: 0C to 50C (32F to 122F) - Storage Conditions: -10C to 60C (14F to 140F) - Power Supply: 1 x 9V 6F22 battery (not included) - Item Size: 160 x 55 x 34mm / 6.30 x 2.17 x 1.34in - Item Weight: 147g / 5.18oz - Package Weight: 261g / 9.21oz - Package Size: 18 x 10 x 4cm / 7.09 x 3.94 x 1.57in Packing List: - 1 x Manometer - 2 x Flexible Tube - 1 x Manual (English)