WITRN C4 Pro. Yet another power meter. TYPE-C only. Voltages up to 48v supported, also up to 10A current. USB-PD standard is evolving and currently allows 240W charging, so power meters need to be upgraded too.
WITRN has different software for firmware updates and to explore curves. Both PC software and firmware are in active development.
The current version of the Meter app is 3.0
The firmware upgrade is version 2.4
Links
- Firmware http://www.witrn.com/witrn/C4/C4_Firmware_V6.2.rar
- Update http://www.witrn.com/witrn/PC/WITRN_USBMeterUP_V25.rar
- Meter APP https://www.witrn.com/witrn/PC/Meter_soft_V3.0.rar
Local files archive
The price was about 54$