Features: Automatic antenna tuner: The ATU-100 automatic antenna tuner can automatically adjust the matching of antenna to ensure the best signal transmission effect. Wide frequency ranges: Supports 1.8‑55Mhz wide frequency ranges, suitable for different types of radio equipment and frequency bands. Quick tunings: Quickly complete antenna matching, improve communication efficiency, and reduce tunings time. Easy to operate: A simple control panel designs allows users to easily set and adjust parameters. Durable and reliable: Adopting high-quality materials and processes to ensure the durability and reliability of the product. Specifications: Material:Metal Power supply voltage:10-15VDC Maximums current consumption: 400mA Maximums working power: 100W Maximums possible measured power: 150W Minimum power required to start tuning: 5W Minimum possible measured power: 0.1W Measurement step with power ups to 10W: 0.1W Measurement step with power high than 10W: 1W Power measurement accuracy: 10% Maximums installed inductance: 8.53uh Minimum installation inductance step: 0.05uh Maximums installed capacitance: 1869pf Minimum installation capacitance step: 10PF Consumption of 100-200mA Display: 0.91oled Package Includes: 1x Antenna Tuner note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.