Feature: 1. [Professional Accuracy] Equipped with a professional vacuum sensor, this digital vacuum gauge offers accurate measurement of vacuum levels and rapid response times. 2. [1/16 Inch 20UNF Interface] The vacuum tester adopts 1/16 inch 20UNF interface, comes with extension connector for easy connection. 3. [Large Screen Display] The vacuum meter features a large screen for real time and intuitive display, with the capability to switch between four different vacuum units for versatility. 4. [More Features] Supports over range protecting and zero setting functions for enhanced usability and accuracy in vacuum measurements. 5. [IP54 Rating] With an IP54 rating, this digital vacuum gauge is water and dust proof, making it suitable for a wide range of on site testing applications. Specification: Item Type: Digital Vacuum Gauge Material: ABS Maximum Overload Pressure: 72Psi 0.5Mpa Measurement Range: 99999Pa~±0.1Pa, 740000~±0.75Micron Resolution: 0.1Pa (<10Pa); 1Pa (<100Pa); 10Pa (<1000Pa) Measurement Accuracy: 0.1Pa-10Pa, ±5% reading (at 20℃) Operating Temperature: -5-50℃ (-23-122℉) Battery: 3 x AA batteries (not included) Battery Life: Up to 40 hours Units: Pa, mBar, mmHg, mTorr, InHg, Microns Refresh Rate: 0.5 seconds Interface: 1/16in 20UNF (1/4in SAE) Sensor: 1 x Pirani Sensor Auto Shut Off Time: 10 minutes Backlit Time: 20 seconds Buzzer: 90dB volume, shuts off after 10 seconds Application: Atmospheric environment (cannot be used for measurement in other environments containing refrigerants, etc.). Package List: 1 x Digital Vacuum Gauge 1 x Connector 1 x Storage Bag