The resistance uses 1 degree metal film resistor with good performance, quality control, and quality assurance. It has a high safety factor and can be used with peace of mind. Made from high-quality materials, it is strong and durable with a long service life. It can automatically detect the pin layout of the components being tested. Measures the current amplification factor of bipolar transistors and the base-emitter threshold voltage. Key operation for automatic shutdown; battery operation is possible due to a shutdown current of approximately 20mA. Automatically detects NPN and PNP bipolar transistors, N- and P-channel MOSFETs, JFETs, diodes, dual diodes, unidirectional and bidirectional thyristors. Automatically identifies the pin configuration of tested components. Measures the current amplification factor of bipolar transistors and the base-emitter threshold voltage. Transistors can be identified by their threshold voltage and high current amplification factor. Measures gate threshold voltage and gate capacitance for MOSFETs. Displays values with up to four decimal digits in the correct unit. All symbols are accompanied by the corresponding probe number on the tester. Includes potentiometer functionality. If the potentiometer is adjusted to either end, the tester may not distinguish the middle pin from the other pins. Resistance measurement resolution is 0.1 ohm and can measure up to 50M ohms. Can detect and measure capacitors, displaying values with up to four decimal places in the correct unit. Capacitance range is from 30pF to 100mF, with a resolution as low as 1pF. For capacitors with a value above 2μF, it measures equivalent series resistance (ESR) with a resolution of 0.01 ohm and displays two significant decimal digits. Displays up to two diodes in the correct order with diode symbols. Forward voltage is also displayed. LEDs are detected as diodes; forward voltage is significantly higher than standard diodes. Two-in-one LEDs are detected as two separate diodes. If the reverse polarity is detected, the device indicates accordingly.