1. Charging method: 5V/1A mobile phone power adapter 2. Charging time: about 1.5h 3. Working time: about 13 hours 4. Standby time: about 8 months, automatic shutdown when voltage is lower than 2.9V 5. Working current: 90mA 6. Power: 400mW 7. Working temperature: -10 degrees to 60 degrees 8. LCD interface display, data recording, battery power display 9. Maximum output deviation from the best straight line applicable to the measured output within the pressure range at 25 degrees 10. Suitable for testing fan and blower pressure, filter resistance, wind speed, furnace pressure, orifice pressure difference, bubble water level, hydraulic system pressure, etc. Also suitable for controlling gas proportions and automatic valves during combustion, monitoring blood pressure and respiratory pressure.
