1.8MHz-50MHz 0.5W-120W SWR HF Short Wave SWR and Power Watt Meter FM AM CW SSB + Battery + Button

DIY digital power standing wave meter is here it is small and portable built-in rechargeable battery does not require external power supply directly displays forward power reflected power antenna power antenna efficiency standing wave battery voltage accuracy meets amateur needs high standing wave the battery undervoltage buzzer alarm function. Frequency range: 1.8MHz-50MHz (in fact there is a reference value to the V segment) Power range: 0.5W-120W (up to 200W FM AM CW mode is recommended for long-term testing below 120W SSB mode is optional) Measurement accuracy: Less than ±5% Standing wave range: 1.0-99.99 Colour: Black Material: aluminum alloy Access interface: SO239 Charging interface: type-c Aluminum alloy shell size: 63mm x 88mm x 38mm (excluding protruding parts) aisanray) Battery capacity: 1000mAh In the power-on state it shows red light when charging green light when fully charged and yellow light when under voltage. When the VSWR is less than 1.5 the green indicator is on the VSWR is greater than 1.5 and less than 2.5 the yellow indicator is on and the VSWR is greater than 2.5. The red indicator is on. If the standing wave is greater than 2.5 and less than 3 the buzzer will alarm intermittently and if the standing wave is greater than 3 (aisanray) it will continuously alarm. The battery is under-voltage the buzzer keeps prompting and the yellow indicator light is on. One key to turn off the buzzer function One-click switch between Chinese and English. One-key display mode switching function 5 modes can be switched at will. Package Contents: 1 meter