ZP Elektro Doboj a.d. has been delivered a special PRT 50 tandem trailer designed for transporting containers with measuring equipment. The trailer is designed for containers with dimensions of 3555 × 1925 mm, with a maximum travelling speed of up to 90 km/h.

It is equipped with twist-lock mechanisms at the ends of the chassis for secure container fastening. It has two axles, an ECOtronic system, PVC mudguards, and a Ø40 drawbar, and is fully adapted for towing by a Mercedes-Benz Unimog, ensuring optimal functionality in off-road and technically demanding conditions.