Feature:1. ACCURATE AND STABLE: The digital differential pressure instrument has superior performance, high accuracy, good stability and other advantages2. WIDE APPLICATION: The pressure differential instrument is suitable for measuring the pressure differential and other parameters of various gas media in the industrial process of chemical industry, metallurgy, electric power, nuclear power and other industrial sectors3. POWERFUL FUNCTION: High accuracy digital display differential pressure meter, can simultaneously detect a variety of gas media differential pressure parameters4. LED BACKLIGHT DISPLAY: The differential pressure meter has a backlight display function, which can be easily handled at night5. MULTIPLE MODE SWITCHING: The differential pressure meter supports 8 pressure units, 2 wind speed units and 2 density units, and can be automatically calibratedSpecification:Item Type: Differential Pressure TesterModel Number: AS511Material: ABSBattery: 3 x 1.5V AAA battery(not included)Use: Suitable for measuring the pressure differential and other parameters of various gas media in the industrial process of chemical industry, metallurgy, electric power, nuclear power and other industrial sectorsBasic Parameters: Pressure Difference Measurement Range: -39.98~39.98KpaMaximum Bearing Pressure Range: -79.96~79.96KpaMeasurement Rate: 0.5S.Package List:1 x Differential Pressure Tester2 x Hose7 x Accessories1 x User Manual1 x Storage Bag