If you are want to make a project which is used to convert heat to cold or vise versa. then this Sensor is needed for you. With this sensor, you can make a small Refrigerator. you can buy this Peltier from robomart.com at a reasonable price.

Thermoelectric Peltier cooler TEC1-12706, consists mainly of semiconductor material sandwiched between two ceramic plates and is used in many applications from CPU coolers to other power sources.

A thermoelectric cooling module (TEC) is an electronic semiconductor component that functions as a small heat pump. By applying a DC power source to a TEC, heat will be transferred from one side of the module to the other. This creates a cold and warm side. They are widely used in industrial areas, e.g. computer CPUs, CCDs, portable refrigerators, medical instruments, etc.

1. Insulation Cotton Washer.
2. With Side stickers.
3. Useful for TEC1-12706 Thermoelectric Cooler Peltier.