Automatic detection of NPN and PNP transistors, N-channel and P-channel MOSFETs, diodes (including double diodes), thyristors, triodes, resistors and capacitors, etc. The pin of the component is automatically tested and displayed on the LCD Can detect the amplification factor and base of transistors, MOSFET protection diodes, etc. Determine the forward bias voltage of the emitter transistor Higher test speed, valid period for component testing: within 2 seconds (except for larger capacitors, the measurement of large capacitors takes a long time, and the measurement time is 1 minute is normal) The automatic shutdown function can avoid unnecessary waste, save battery energy and improve battery life. color:As shown Material:ABS size:63 x 71 mm Package Contents: 1 x Multimeter Only the above package content, other products are not included. Note: Light 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.