Guchen Thermo TS-1000 is a self powered independent large truck refrigeration unit, also a single temperature diesel truck refrigeration system. www.guchenthermo.com/products/diesel-engine-truck-refrigeration-units/ts-1000-diesel-units.html It is suitable for Large Insulated Truck Bodies, for positive and negative temperatures. This revolutionary new range of Independently powered Diesel Units work separately from the vehicles compressor system as it run’s off of it’s own compressor, removing the need for drive belts resulting in improved efficiency and reduced fuel consumption. Guchen Thermo Monoblock Transport Refrigeration Units are pre-assembled with the condenser and evaporator units connected to each other, removing the need for the evaporator to be fitted onto the ceiling of your Insulated Cool Room Body. --------------------------- Multi-temperature refrigeration units also provided here: www.guchenthermo.com/products/diesel-engine-truck-refrigeration-units/ts-1000mt-multi-temp-truck-refrigeration-unit.html