SMART SENSOR AS511 Digital Differential Pressure Gauge -39.98~39.98KPA Manometer Dual Port Air Gas Pressure Tester

Features:
Professional Manometer: it can test the differential pressure of areas and pipes, wind velocity of pipeline. It has wide pressure range and +/-0.1% accuracy.
Clear Display: 2.7-inch LCD screen with backlight display for easy reading.
12 Selections of Measuring Unit: hpa, kpa, mmHg, psi, mbar, bar, ozin2, inHg, Kgcm2, inH2O, ftH2o, cmH2O.
Other Features: Max./Min. value measurement function, data record, data hold and zero function.
User-friendly Prompt: low battery indication, Hi and Lo over range indicator.
Low Power Consumption Power Saving: powered by 3pcs AAA batteries(NOT included), and it will automatic power off after no operation for 15 minutes.
Compact Size Lightweight: easy to operate and carry, it also comes with a protective zipper pouch.
Wide Applications: applied on chemical industry, electrical industry, nuclear industry to measure the difference of air pressure, etc