Features: Highly power processing capability: Supports up to 200W of power processing, suitable for processing devices with various power requirements. OLED display screen: equipped with 1.29inch OLED display screen, which clearly displays key information such as power and standing waves ratio. Long battery service life: Equipped with a build-in 50 hour battery, ensuring long time use and convenient charging. Wide frequency: covering the frequency of 1.6-50MHz, suitable for various shortwaved communication needs. Accurate measurement: Provides accurate power and standing waves ratio measurements to help users effectively monitor and adjust device performances. Specifications: Material: Metal Frequency: 1.6-50MHz Power measurement: 0.5W-200W Standing waves measurement: 1.0-99.9 Insertion loss: <0.12dB Impedance: 50Ω Power supply: build-in rechargeable battery USB C Screen size: 1.29inch Screen type: OLED Power consumption: <0.1uA Data communication: USB C Firmware upgrade: Support Dimensions: 88x38x64mm/3.5x1.5x2.5" (excluding protrusions) Package Includes: 1x Power SWR Meter note: Can used continuously for 200W detection for long time, over 500W will damage the detection components.