Features:120W digital power standing wave meterDirect reading of multiple parameters of forward and reverse power standing wave240 x 240 full color HD displayHigh standing wave alarm functionDelayed shutdown function, transmitting automatic startup function, and battery undervoltage protection function.LED dual indication functionPower fine-tuning function, standing wave fine-tuning function.One button switching function of Chinese and English menusBuzzer one key on/off functionOne button switching function of multiple display interfacesCustomized standing wave alarm setting functionCustomized shutdown delay time setting functionSpecifications:Operating frequency: 1.8-50MhzMeasuring range: 0.5-120W (SSB mode can reach 200w at most, and the buzzer will alarm when it exceeds 200w)Standing wave range: 1-99.9 (the default alarm is 2.0, and the alarm point can be manually set through the function)Charging interface: Type_ c 5v/1ABattery model: 3.7v/1000mAh (when the battery voltage is lower than 3.4v, the buzzer will ring for charging, and it will automatically shut down when the battery voltage is lower than 3.35v)Interface type: UHF (SL16)Shell size: 88mm x 63mm x 38mm (excluding protruding parts)Colour: Black: aluminum Package Contents:1 x SWR MeterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.