... functions of real-time measurement, curve display, power supply management, time system, file system, data inquiry ... quantity, intelligent charging protectionl Lithium battery power supply super-long standbyTechnical parametersMeasurement of dew point-80…+20 ... barometric pressureParameter of complete applianceWorking flow no influencePower supply built-in lithium battery (8000mAh), AC/DCCharging ...