This is a set, so you need to it by yourself, which can your manipulative . It can work effectively in broadband, overlapping radio amateur HF bands from 1.8mhz to 50MHz. The max current consumption is 400mAh, and it with 7 inductance and 7 capacitance. It is easy to carry, so you can take it with you to anywhere you to use it. With the OLED screen, which can let you see clearly the data, give you a better using experience. Step for measurement on powers under 10 : 0.1 watt Step for measurement on powers above 10 : 1 watt Power measurement accuracy : 10% Maximum inductance set: 8.53uH step for setting inductance: 0.05uH Maximum installed capacitance: 1869pF installed capacitance: 10pF Types:DIY kit Colour:black Material:plastic Size:about 128 x 62 x 20mm OLED size: 28 x 27mm / 1.1 x 1.1in weight: 129g / 4.6ounce Package Contents: 1 x PCB 1 x OLED 1 x Accessory 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.