All-purpose Temperature Controller</br>Auto switch between refrigerating and heating</br>Retrun difference value</br>Measure range:-50~+99??C</br>Accuracy: ??1??C(-50??C~70??C)</br></br>Product Description</br></br>Detailed Product Description <br /> Measure range:-50~+99??C <br /> Mounting size:71*29mm <br /> Auto switch between refrigerating and heating <br /> Retrun difference value <br /> All-purpose Temperature Controller STC-1000: <br /> <br /> Features: <br /> Switch the modes between cool and heat; Control temperature by setting the temperature setting value and the difference value; Temperature calibration; Refrigerating control output delay protection; Alarm when temperature excee