TR-81 User Manual Brandname: T&D Category: Thermostat Total Pages: 32 Table of contents TableofContents3Warnings4HandlingPrecautions5SoftwareUserAgreement6BasicFunctions7ContentsofPackage8PartNamesandFunctions9InstallTheBattery12TurnPowerOn13ReplacingTheBattery14InstallingTheSoftware15StartingtoRecord18DownloadingRecordedData20TemparetureHumidityGraph22ZoomInUsingTheMouse23SavingRecordedData24CreatingTextFile25Troubleshooting26Specifications29TdWebsite31