The Expert 1:10 Passive voltage prescaler kits, extend the voltage sense input range of the Expert Pro from 0 VDC to 350 VDC.
Being passive prescalers, these units are not equipped with an internal DC-DC converter. This means that instead of powering the battery monitor itself from HV battery bank, it must be powered from a lower voltage tap (<35 VDC) of the HV battery bank or a separate/external DC-DC converter. A double sided adhesive pad for mounting the divider box and clear installation instructions are also included in this kit.
The passive prescalers are not compatible with the Expert Pro-hv.