Electrophoresis is used in laboratories to separate macromolecules based on size, Electrophoresis is used extensively in DNA, RNA and protein analysis. Labtech Electrophoresis Trainer is designed to demonstrate the operation, theory, repair and servicing of Electrophoresis equipment that used at clinics & hospitals. The unit is given the fault diagnosis so as to facilitate the teaching of trouble shooting techniques. A fault simulator is provided with circuit block diagram of the device for the students to study theoretically and experimentally in order to understand the operation of the device.