Feature 1 ACCURATE MEASUREMENT: Digital SWR meter accurately measures Standing Wave Ratio (VSWR) and Radio Frequency Power Watts (FF/REV). 2 DIGITAL DISPLAY: Shortwave standing wave meter features a battery level display and a backlit LCD display. 3 HIGH POWER: Short wave SWR meter has a high power range of up to 120W and is designed with low insertion loss (under 0.3 dB). 4 SHORT WAVE: Digital standing wave meter supports 1.570MHz frequency range coverage, suitable for a wide range of application scenarios. 5 DURABLE AND CONVENIENT: Mini SWR meter is long lasting with built in frequency counter and easy to use interface design.Item Type: Plug and PlayModel: SW102HFMaximum Input Power: 120WVSWR: 1.00:119.99:1Frequency Range: 1.570MHzPower Input: 5V 1A (not Included, Need to Be Self Equipped)Battery Type: Lithium BatteryBattery Capacity: 550mAh (included)Input and Output Impedance: 50 Ohms( in and Out ) Interface: SO239(SL16)Material: ABS Package List1 x SWR Meter1 x Charging Cable1 x Instruction Manual