... LCD screen 3.Auto recorded 4.Free software upgrades Name: Temperature and Humidity RecorderModel: TPJ-20/TPJ-20L Characteristics: 1, ... and record humidity and temperatureTPJ-20-LTest and record humidity, temperature and dew point Instruction:Can manually open the switch, ... data is recorded . Can record the time and some parameters (temperature, moisture, Light, CO2, etc.) If you choose automatic mode, ...