Ranco 016 thermostats are for room and commercial refrigeration, equipped with a unipolar SPDT switch that opens or closes when the temperature increases or decreases. The tripping temperature can be adjusted by means of a screw on all versions, while the differential is adjustable on some models only. Thermostats can also be equipped with a sensor to measure the air temperature, with straight capillary, with spiral capillary and remote bulb.

Cross ambient thermostats have a capillary and remote bulb. Unlike the straight or coiled capillary modules, these controls sense only at the bulb. They should be used on all applications where it is possible that the control head or capillary can be at a lower temperature than the sensing bulb.