HF-10 Serial Port / USB Four-Channel Voltage Logger
Uses could include :
Voltage monitoring, and drift
If you want to play with the code or make your own from scratch, PIC firmware is to be found here
The HF-10 is a 4 channel voltage monitor for logging to a Host PC or similar using
the serial COM port or a USB interface. For more details see the
USER MANUAL
Here's a better copy of the Circuit Diagram than the one in the manual
Battery health and charge discharge characteristics
Signal strength from a receiver S-Meter
Remote monitoring, beacons, repeaters, remote stations
Antenna measurements, pattern plotting
Temperature monitoring and plotting
Magnetometer
Logging light levels
Ground resistance changes
Long term power consumption
Hex Code and Assembler Code
