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Description: - Digital LCD display for easy readings, can display measured data and graphics. - Rotary switch control. - Used for automatic detection of NPN and PNP transistors, FET, diodes, dual diode, thyristor, SCR, automatic identification of the transistor pinout. It also can be used as square signal and PWM signal generator.Power: - Uses 9V battery (not included) or use DC power (DC 6.8-12V). - Lithium-ion battery in series, or AC adapter. When power on , the current is about 30mA at DC 9V.Control: - Transistor Tester is control by a "rotary pulse encoder with switch", or short by "RPEWS", this component have four mode of operation, a short time press the knob , press and hold , left and right rotate the knob. - When Transistor Tester is powered. a short time press of the RPEWS will switch on the Transistor Tester, and start a test. - Transistor Tester will waiting for user input at the end of a test.Test: - Transistor Tester have three test point(TP1,TP2,TP3)Specification: - Material: FR4 - Size: Approx. 78 x 62 x 50mm/3 x 2.4 x 2inch - Screen Size: approx. 3.7x 3cm/1.5 x 1.2inchPackage Includes:1 Piece LCD Transistor TesterNote:Before measuring capacitance, the capacitor must be discharged, otherwise it can very likely damage the meter.We have many years of experience in selling merchandise online, we are focus on providing best product and service to customers.