Feature:1. High Quality Professional Manometer: The Handheld Manometer is made of ABS material, and the excellent performance of high-temperature resistance and impact resistance makes the air pressure meter have a long service life. Adopts professionally designed, it has a wide range, high resolution and high measurement accuracy.2. 13 Selections of Measuring Unit: bar, mbar, KPa, Kgf/cm, mmHg, cmHO, Ozf/in, Psi, inHg, inHO, ftHO, Hpa, Pa3. Other Functions - Supports MAX/MIN/AVG measurement mode switching, date record/hold/clear, buzzer alarm, real-time date, barometric pressure zero calibration, battery level display. With large LCD screen, display data clearer and easier to read.4. Compact Size \u0026 Lightweight: Portable Digital Manometer comes with a nice storage box, easy to carry and keep. Compact size, suitable for handheld operation.5. Wide Applications: Widely used to measure fan and blower pressure, filter resistance, air speed, furnace pressure,orifice plate differential pressure, etc. It is also used for controlling the air to gas ratio and the automatic valve in combustion process, and monitoring blood pressure and respiratory pressure in medical care equipment.Specification:Features:High Quality Professional Manometer: The Handheld Manometer is made of ABS material, and the excellent performance of high-temperature resistance and impact resistance makes the air pressure meter have a long service life. Adopts professionally designed, it has a wide range, high resolution and high measurement accuracy.13 Selections of Measuring Unit: bar, mbar, KPa, Kgf/cm², mmHg, cmHO, Ozf/in², Psi, inHg, inHO, ftHO, Hpa, PaOther Functions - Supports MAX/MIN/AVG measurement mode switching, date record/hold/clear, buzzer alarm, real-time date, barometric pressure zero calibration, battery level display. With large LCD screen, display data clearer and easier to read.Compact Size & Lightweight: Portable Digital Manometer comes with a nice storage box, easy to carry and keep. Compact size, suitable for handheld operation.Wide Applications: Widely used to measure fan and blower pressure, filter resistance, air speed, furnace pressure,orifice plate differential pressure, etc. It is also used for controlling the air to gas ratio and the automatic valve in combustion process, and monitoring blood pressure and respiratory pressure in medical care equipment.Specifications:Model: GT5101-1KPa / GT5101-2KPa / GT5101-4KPa / GT5101-10KPa / GT5101- 40KPa / GT5101 _50KPa / GT5101-100KPa / GT5101-125Pa / GT5101 -250Pa (Optional)Pressure Range: ±1KPa / ±2KPa / ±4KPa / ±10KPa / ±40KPa / ±50KPa / ±100KPa / ±125Pa / ±250Pa (Optional)Standby Current: 3.5uAWorking Current: 90mA(Turn off the buzzer when the lithium battery voltage is 4.2V)Power: 400mW(Turn off the buzzer alarm)Temperature Compensation Range: -5~50Overload Pressure: X 3 FSAccuracy(Total Error):±1%FS(Differential pressure gauge with range of greater than or equal to ±1Kpa range)±2%FS(Differential pressure gauge with range of less than ±1Kpa)Operating Temperature Range: -10~60Unit: bar, mbar, KPa, Kgf/cm², mmHg, cmHO, Ozf/in², Psi, inHg, inHO, ftHO, Hpa, PaPower Supply: Built in a 3.7V 1000mAh lithium batteryCharging Method: 5V1A USB CableCharging Time: about 1.5hWorking Time: about 13hStandby Time: Automatic shutdown when the voltage is lower than 2.9V about 8 monthsProtection Functions: overcharging and over-dischargingMaterial: ABSItem Size: 162 * 63 * 32 mm / 6.38 * 2.48 * 1.26 inchItem Weight: 178g / 6.28ozPackage Weight: 700g / 24.69ozPackage Size: 27 * 21.2 * 6.5 cm / 10.63 * 8.35 * 2.56 inchPackage List:1 * Manometer2 * Plastic Pipe1 * USB Date Cable1 * User Manual (English)1 * Plastic BoxPackage List:1 * Manometer2 * Plastic Pipe1 * USB Date Cable1 * User Manual (English)1 * Plastic Box