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This working model thermostat will demonstrate how differential expansion is used to control temperature.
A bimetallic strip is used to open or close an electric circuit when temperature changes. The contacts will carry about three amperes. The unit can be operated with a 6 V lantern battery, low voltage power supply, or a blow dryer.
Mounted on a metal base; approximately 15 cm high.



Item # Description Unit Availability Price Quantity
470005-892 Thermostat, Working Model, 3 Amp
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