DT20 PC firmware upgrade And User manual
DT20HBW User Manual.zip
DT20HBW-App-Bate(测试版本).zip Capacity Test Percentage Test Version(Download if needed)
DT20HBW-582(定制:电阻超限其值为0).zip(Another download update is needed, the resistance value display has changed!)
DT20HBW-582-20250611.zip(Upgrade this version)

DT20HBW-582-APP-1-0-6(包括蓝牙).zip