DRIVE BY II Portable Monitoring Unit by Digital Products Corporation (DPC)

• DPC was in business during the 1990s
• included in the box is system unit; AC Power Adapter; DC Power adapter; wire whip antenna, magnetic roof mount antenna, carry case with shoulder strap and belt clip, mobile mounting bracket; serial cable; manual
• The unit powers on but I have no idea how it works or how it is supposed to work. Selling for parts or tinkering.