0.5w-120w Standing Wavemeter Mini Swr Power Meter USB Charging OLED Fm Am Cw Ssb, 501 Original

Specification:Indicator light and buzzer:When charging, the red light is on; after the charging is completed, the green light is on; when it is working, the yellow light is on.If the standing wave is greater than 2.5, the buzzer will prompt intermittently.If the standing wave is greater than 3.0, the buzzer will keep prompting.If the battery voltage is too low, the buzzer will keep prompting.Frequency range: 1.8MHz-50MHzMeasurement range: 0.5W-120W (up to 210W. For long-term FM, AM and CW modes, below 120W; SSB mode optional)Measurement accuracy: