Features 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 Meter Material: Aluminum alloy Frequency Range: 1.8MHz-50MHz Measurement 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: <±5% VSWR Range: 1.0-99.99 Insertion Loss: <0.1dB Access Port: SL16 (M head) Charging Port: Type C type, 5V 1A Battery: 1 x 503450 1000mAh Li polymer battery (shipping with built in battery) Package List 1 x SWR Power Meter 2 x Connector