... -time measurement, curve display, power supply management, time system, file system, data inquiry and network communication into an organic whole, ... an all-round way!ZA-3501 Portable Dew Point Meter can be used for detecting non-corrosive gas, such ... humidity 0…100%RHPressure 1 barometric pressureParameter of complete applianceWorking flow no influencePower supply built-in lithium battery (8000mAh), ...