Function introduction: This kit is a multi-functional measuring instrument designed based on the 51 microcontroller that integrates capacitance measurement, inductance measurement and frequency measurement. It can measure various non-polar capacitances, polar electrolytic capacitances, inductances and frequencies. DIY welding practice production of spare parts, learn and understand the knowledge application of microcontroller and the measurement principles of frequency, capacitance and inductance. Kit name: HU-053 Capacitance and inductance frequency meter kit Supply voltage: USB power supply 5V (DC power socket) Non-polar capacitance measurement range: 1pF~2200pF Polar capacitance measurement range: 1uF~12000uF Inductance measurement range: 1uH~1H Frequency measurement range: 20Hz~400KHz Material: abs colour: As Shown Package Contents: 1 x Capacitance and inductance frequency meter kit 1 x Casing (delivered as spare parts, some accessories are sent randomly, Cannot be chosen the specific accessories.which does not affect the use) 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.