PAKKENS - Model TE 063 -Dial Thermometers

Bi-Metals are made of two different metal sheet layers and a spiral form is given ,as the metals expansion rates differ from each other , due to these factors it spins upwards around its axis by heat.By a transmission wire this movement it is transmitted to the pointer. Used where no high accuracy is needed. Cookers, Plastic Injection Machinery,Coffee Machines,etc.