Feature: 1. Accurate and Versatile: The digital manometer features a ±2.999Psi/20.68Kpa differential pressure sensor with an accuracy of ± 0.3% FS, making it suitable for measuring gas and air pressure in various applications. 2. 12 Selectable Units: With 12 selectable units, including mmHg, inHg, ftH₂O, and more, this manometer caters to users from different industries and countries, providing flexibility and convenience. 3. Data Recording: The manometer can store up to 100 groups of test data, could review and analyze the readings after testing, also has a "return to zero" function for accurate measurements and a low battery reminder. 4. High Accuracy: Equipped with a sensitive pressure sensor, offers precise and reliable pressure measurements. with high precision ADC and low power MCU technology for improved accuracy. 5. User Friendly: The manometer has an automatic shutdown function to conserve battery power, along with overload indication to protect the device,also allows users to reset all factory settings when needed. Specification: Item Type: Digital ManometerMaterial: ABS, metalBattery: 1x6F22 9V (not included) Measuring Range: ± 2.999Psi Measurement Classic; ± 0.3%FSO(25℃) Datastores: 100 groups Exceeding The Positive Pressure Range Display: Err0 Exceeding The Negative Pressure Range Displays: Err1Power Supply: 9V Applicable Models: For car, industrial equipment, etc . Package List: 1 x Digital Manometer2 x Hose1 x Adapter1 x Manual