ZIBOO ET1013 Digital Manometer, Air and Gas Pressure Tester, Differential Dual Port Gauge, Large LCD Display with Backlight,HVAC Tester

11 Selectable Units & High-Accuracy Measurement Offers 11 pressure units (including psi, kPa, bar, etc.) to suit various application needs. Measures ±2 psi gauge and differential pressure with high resolution (0.001 psi), delivering precise low-range readings. Data Hold, Recording & Zero Function Features a HOLD button to freeze displayed values, plus MIN/MAX/AVG recording mode. Includes a zero function for quick offset correction, ensuring accurate and reliable measurements. Portable & One-Handed Operation Compact and slim design (5.79" x 2.16" x 1.26") with well-placed buttons allows for easy one-handed use, freeing the other hand for adjustments or tools during work. Large Backlit LCD & Auto Power Off Equipped with a clear backlit display for easy reading in low-light conditions. Automatically shuts off after 20 minutes of inactivity to conserve battery life. Wide Professional Application Designed for HVAC, pneumatic controls, medical equipment, gas appliance service, laboratory testing, and computer peripherals. Includes error codes for out-of-range indication and low battery warning for reliable operation.