IC tester, measures logic chips, including 74HC, 74LS, CD40, HEF40 45/145 series, op amps, optocouplers, diodes, Zener diodes, transistors, field-effect transistors, thyristors, etc., and can measure quality and identify model numbers. Place the chip in the tester and click the button to measure. Easy-to-use test board with diode and transistor chip mounts, a built-in lithium battery, and a Type C charging port for charging with a mobile phone charger (charger cable not included). The test socket has a wide 20-pin body and a narrow 16-pin body. Color: Black Material: plastic Package Contents: 1*IC tester 2*Test socket Only the above package content, other products are not included. Note: Light reflection 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.