Digital Gas Pressure Manometer with Data Hold Function

HT-1890 Digital Differential Pressure Gauge: Suitable for measurement and on-site calibration of ventilation and air conditioning systems, clean rooms, or troubleshooting of any gas pressure system. Easy to operate and clear readings, it is an indispensable test tool for HVAC technicians, operation and maintenance engineers, and scientific researchers. Pressure range: 2Psi Maximum pressure limit: 10Psi Operating temperature: 0-40°C Storage temperature range: -10°C-60°C Color: White Material: plastic Package Contents: 1 x HT-1890 Gas Pressure Gauge (1x9v battery is not included,You need to prepare yourself) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.