Features Premium Material: Handheld digital pressure gauge is made of ABS material, the excellent performance of high temperature resistance and shock resistance makes the pressure gauge long service life. LCD Display: The digital differential pressure gauge adopts a large-size LCD display with backlight, which is easy to operate with light, and the displayed data is clearer and easier to read. High Performance: The barometric pressure tester has a low-battery reminder function, optional automatic shutdown function, over-range reminder function and calibration function. Good Reliability: The TL100 digital differential pressure gauge has 11 air pressure units and is fully functional. With maximum, minimum, average pressure value recording and viewing function, and data retention function. Application: Professional barometers are specially used for gas measurement and calibration, gas pressure system troubleshooting, laboratory testing, maintenance and installation of gas appliances such as blowers, clean rooms, boilers, etc. Specifications: Condition: Brand New Material: Plastic Range: +2psi Accuracy: ±0.3% FS Linearity/hysteresis: ±0.1% of full scale FS Repeatability: ±0.25% FS Pressure connection: two 1/8" (3.18 mm) quick connectors Working temperature: 0~40°C Storage temperature range: -10~60°C Product size: approx. 150 x 55 x 30mm / 5.9 x 2.2 x 1.2in Battery type: 9V battery (Battery not included) Package list: 1 x Digital pressure gauge (Battery not included) 2 x Plastic hose 1 x Metal connector 1 x Portable bag 1 x English manual Note: 1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List