Light weight and durability Mainly used to test the DC parameters of various semiconductors such as crystal diodes, triodes, thyristors, field effect transistors, etc. It can also be used to test the withstand voltage of capacitors, the protection voltage of varistors, and the insulation performance of electrical components. It can also test the voltage regulation value of the 7879 series three-terminal circuit Type: Digital Transistor Tester Measuring range: Breakdown voltage V(BR) 1000V Operating temperature: 0℃-40℃ Applicaiton: 1,Testing the DC parameters of various semiconductors 2,Testing the withstand voltage of capacitors 3,Testing varistor 4,Testing the insulation performance of electrical components Colour:As Shown Material:plastic Package Contents: 1 x Digital Transistor Tester 1 x Cloth Bag 4 x Batteries 1 x English Instruction Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.