High-precision Measurement: The NF-565 digital manometer provides accurate air pressure readings with a differential pressure gauge of ±105 KPa, ensuring precise diagnostics in various applications.Extensive Range Capability: Capable of measuring distances up to 500 meters (1640 feet) and depths up to 0.8 meters (2.6 feet), this device is ideal for extensive range assessments in numerous environments.Safe Operation Standards: Certified by CE, the NF-565 guarantees adherence to safety standards, offering reliability and peace of mind during use. It operates effectively within a maximum signal voltage of 45V.Versatile Tool for Professionals: Designed for versatility, the NF-565 is a must-have tool for professionals in HVAC, engineering, and maintenance fields, providing critical data for efficient problem-solving.FDescription/Features:This advanced differential pressure gauge is designed for versatility and efficiency, suitable for a wide range of applications including HVAC systems, atmosphere pressure troubleshooting, and on-site numerical calibration.Specifications:1. Unit Conversion: Easily switch between various pressure units to accommodate different measurement requirements.2. Display Features: Includes a differential pressure display (DIF), and maximum (MAX) and minimum (MIN) value displays for comprehensive monitoring.3. Data Hold Function: Briefly press the DIF/HOLD button to freeze the current reading; press again to release and continue measurements.4. Timing Function: Utilize the TIME key for starting or pausing timing with a short press, and reset the timer with a long press.5. Backlight Display: Activate the backlight by holding the UNIT button, enhancing visibility in low-light conditions; deactivate by holding the button again.6. Low Battery Indicator: A clear display on the battery icon when the 9V battery needs replacement.7. Auto-Off Feature: To conserve battery life, the gauge automatically powers down after 10 minutes of inactivity