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These controllers automatically switch on the motor when the tank level is low and automatically switch off when the tank becomes full
k : 0-100 ppm
Air Blower: Operated independently of the main motor and includes thermostatic control
Cup Counter measuring wind velocity
this hot plate heats up quickly
Ring And Ball Apparatus micrometer symbol These controllers automatically switch onRing And Ball Apparatus A useful apparatus for demonstrating thermal expansion. Includes a brass ball and a brass ring each mounted on a handle. The ball fits easily through the ring at room temperature. When the ball is heated over a flame, it expands and no longer fits in the ring.
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