Model: ATU-Pro+. 0.96inch OLED display. Frequency 1.8-50 MHz. Power supply voltage range: 10-15V DC. Maximum current consumption: 300 mA. Maximum working power: 120W Maximum possible measured power: 150W. 1W: It is necessary to setting the minimum power. Minimum possible measured power: 0.1W. Step for measurement on powers under 10W: 0.1W. Step for measurement on powers above 10W: 1W. Power measurement accuracy: 10% Specified maximum inductor: 8.4 uH capacity. The minimum installation step of inductor: 0.05H. Maximum installation capacity: 1870 pF capacitor Minimum installation step: 10 pF Software Optimization: 1. Synchronize the latest version 3.1 firmware 2. New configuration interface, eliminating the need for repeated flashing, no need to buy a burner 3. Optimize power measurement calibration algorithm, power measurement is more accurate 4. Configuration interface How to enter: Press and hold TUNE button and turn on the tail power switch at the same time. After is displayed on the screen, release the TUNE button to enter the setting interface. Operation mode: Short press TUNE button to change the current value. Long press the TUNE button to switch setting items. of each option: Mode (ON/OFF): Freely control the automatic mode of antenna tuner,and omit the automatic button, making it more convenient to use. If you plan to use the device without additional buttons, you can enable the automatic mode by setting the value to ON. The default value is ON. Show Loss (ON/OFF): Freely control the loss calculation display interface, the display is more intuitive. Indicating the power delivered to the antenna and efficiency of fider and transmitter when input power is enough for SWR measuring. Colour:black Material:Metal + Plastic Package Contents: 1 x Automatic Antenna Tuner 1 x USB Cable 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.