Thermo King Corporation, Minneapolis, introduced the SB-190 trailer refrigeration unit. The SB-190 offers a similar capacity to the previously introduced SB-200, at 0 degrees Fahrenheit and -20 degrees Fahrenheit. The SB-190 has many of the same components and includes the basic product features of the SB-200. Standard features on the SB-190 include the MP-VI Smart Reefer controller with the Optiset temperature management system, 12,000 hour long-life coolant and R-404A refrigerant, model X430L compressor and a three-year warranty.