This series of TEC (Thermoelectric Cooler) modules, ATE1-31, has 31 pairs of Peltier elements inside with a maximum voltage of 3.9 Volt, there are several options for maximum current, resulting in different power gratings, as shown in Table 1 below. They are designed for regulating the temperature of the target objects precisely and can be controlled by our TEC controllers to build highly stable and efficient temperature regulating systems. The ATE1-31 series TECs can be used with our thermistors as well to achieve precise and stable temperature sensing.