Manometer, HVAC Digital Manometer Gas Pressure Tester, Handheld Air Pressure Meter, 11 Optional Units Differential Pressure Gauge YF-189B with Backlight, Data Hold Function

The gas tester can measure the air pressure of a single pipe or the differential pressure of two pipes. It is suitable for measuring ventilation and air condition systems, gas measurement, calibration, and troubleshooting of any gas pressure systems. Feature: 1.Multifunctional, it can record max/min/average value, hold data and display DIF value of two measured objects. 2. Energy saving, automatic shutdown in 25 minutes if no operation is taken. 3. Low battery reminder function, it displays a battery charging icon on the screen when the battery is low. 4.Professionally designed, it has a wide range, high resolution, and high accuracy, and it can portable and easy to use. 5. Large LCD backlight display, easy reading at a glance in a dark environment. 6.Wide application, 11 optional units for gas pressure, with an accuracy of ±0.3% FS. Specification: Accuracy:±0.3%FS Automatic shutdown: About 25 minutes Pressure connection:One 1/8 "(3.18 mm) quick connector Operating temperature:0~40℃ Storage temperature range:-10~60℃ Over-range prompt:ERR1 or ERR2 Working power supply:Two AAA batteries Weight:134g Size:160*62*31mm Package list: 1 X manometer with lanyard 2 X AAA batteries 4 X soft hoses 1 X protective bag 1 X small screwdriver 1 X packing box 1 X user manual 1 X metal terminal

• Precise and Accurate Manometer：Digital manometer can measure ±30psi or ±206.8Kpa with an accuracy of ±0.3%FS and a resolution of 0.01, with high accuracy and wide range, 11 units (mmHg, inHg, ftH₂O, cmH₂O, inH₂O, KPa, mbar, bar, psi, Kgcm² and ozin²) for select
• Multifunctional Pressure Tester：The gas pressure gauge can store data by entering REC mode to read max/min/average value during recording, also supporting data hold and DIF mode for various needs. Automatic shutdown after 25 minutes if no operation, prolongs battery life
• Easy to Use：Dual-port air pressure gauge with backlight displays reading on the large LCD screen, ensuring eye-pleasure reading in the dark. There is a positive and a negative port on the top to test the gas pressure of two containers by connecting 2 soft hoses, easy to operate
• Wide Application：Featuring with 30 Psi limited maximum pressure, the digital air pressure gauge is widely applied in HVAC systems, air conditioning and ventilation system, gas measurement and calibration, laboratory research, maintenance and installation of blowers, clean rooms, boilers, and other gas appliances
• Portable： Equipped with a lanyard, the digital hvac gauge is connected with the ABS protective cover to protect ports from dust and rust, portable and durable. If you have any question about our product,we are pleasure to offer help to you