I may be confused about which Kenton box you have. From their website:
Pro CV to MIDI
Seems like there's more Control Voltage around now than ever before! So this box translates the pitch, gate and two other voltages from your chosen analogue source and converts them to MIDI data to ensure that none of your synths get excluded.
Pro Solo Mk3
A must for vintage and modular synth fans, the Kenton Pro Solo Mk3 enables your MIDI keyboard or sequencer to control CV synths with V/oct, Hz/V & 1.2V/oct scaling systems. TR808 fans can even switch the Thru socket for Sync 24.
It sounds like you are describing the Pro Solo.