1Automatic detection of zener diode 0.0130v. 2Self-test with automatic calibration. 3Support infrared coding. 4Infrared waveform display. 5Infrared receiving instructions. A full-color display multi-function test instrument that can measure triodes, diodes, resistors, capacitors, inductors, thyristors, field effect transistors, regulators, dual diodes, light emitting diodes, infrared decoding. Can measure voltage, built-in lithium battery, long battery lifeFeatures:Automatic detection of zener diode 0.0130v.Self-test with automatic calibration.Support infrared coding.Infrared waveform display.Infrared receiving instructions.The measurement results are displayed by TFT graphic.A key operation.Automatic shutdown (timeout setting).Built-in high capacity rechargeable lithium ion battery.Lithium ion battery voltage detection.Specification:Main color: blueScanning range: 0.1MHzVoltage: 3.7 VDisplay: 160 x 128TFT Battery: 1 x lithium ion battery, 3.7v, 300mA Weight: Approx.115g/4.1ozPackage list:1 x Transistor tester 1 x USB cable. 1 x Red and yellow green contact wires. 3 x contact pins 2 x capacitance