Feature:1. Digital Display: This power meter features a digital display that directly shows forward power, reflected power, antenna power, antenna efficiency, standing wave and battery voltage.2. Measurement Range: The power meter has 1.8MHz to 50MHz frequency range, 0.5W to 120W power measurement range, 1.0 to 99.99 standing wave measurement range.3. Multifunction: The power meter is equipped with buzzer alarm function and supports one button to turn off the buzzer function. Switchable Chinese or English, five modes.4. Aluminum Alloy Housing: The case of our shortwave antenna tuner is made of aluminum alloy, compact and light weight.5. Multi Interface Design: The shortwave antenna tuner has 5V 1A Type C charging interface, for ANT interface and for TX interface.Specification:Item Type: SWR Power MeterMaterial: Aluminum alloyFrequency Range: 1.8MHz-50MHzMeasurement Range: 0.5W-120W (up to 210W, less than 120W recommended for long time use in FM, am, CW mode, SSB mode available)Measurement Accuracy: andlt 5 percent VSWR Range: 1.0-99.99Insertion Loss: andlt 0.1dBAccess Port: SL16 (M head)Charging Port: Type C type, 5V 1ABattery: 1 x 503450 1000mAh Li polymer battery (shipping with built in battery).Package List:1 x SWR Power Meter 2 x ConnectorNote:The for ANT and for TX connectors are equipped with two dustproof transparent covers and are accompanied by two male thread connectors.