Generator L, C, R, +, tensiometru și frecvențămetru. Tester tranzistori, ESR, LCR, condensator, Description: Input voltage: DC 6.8V-12V Working voltage: about 30mA, measured when inputting 7.5V DC voltage Transistor tester control The tester is controlled by a rotary encoder switch, The rotary encoder switch can have a total of 6 operations, short press, long press, left rotation, right rotation, hold left rotation, hold right rotation. In the shutdown state, short press once to turn on the power and start the test. After a test is completed, if the device is not detected. Long press the switch or the left and right rotary switch to enter the function menu. After entering the function menu, the left or right rotary switch can be selected up and down in the menu item. To enter a function item, short press the switch once. When you need to exit from a function, press and hold the switch.