This digital power standing wavemeter is small and portable with a full-color LCD display that directly displays forward power, reflected power, antenna power, antenna efficiency, standing waves, and battery voltage, and accurately meets the needs of the amateur. With the high-rise waves alarm feature. Delayed power-off feature, automatic power-on feature for transmission, and battery undervoltage protections feature. LED light dual indicator function. Power fine-tuning functions, standing waves fine-tuning functions. One-button switch function for Chinese and English menus.  Features:  120W digital power standing wavemeter with forward and reflected power standing waves and multiple parameters direct reading function.  240*240 full-color LCD display, you can see the forward power, reflected power, antenna power, VSWR, battery voltage, and antenna efficiency clearly.  It comes with a standing waves alarm feature and a buzzer-like one-button on/off feature.  Delayed power-off function, automatic power-on function for transmitting, and battery undervoltage protections function.  LED light double indication function.  Power fine-tuning feature, standing waves fine-tuning feature for amateur DIY use.  One-button switch function for Chinese and English menus, easy to accommodate your usage and reading preferences.  One-button switch function for multiple display interfaces. Customized standing waves alarm setting function.  Customized shutdown delay time setting function.  Specifications:  Name: SWR Meter  Materials: printed circuit board  Operating frequency: 1.8-54Mhz  Measurement ranges: 0.5-120W (SSB mode up to 200W, over 200W buzzer alarm)  Standing waves ranges: 1-99.9 (default greater than 2.0 alarm, you can manually set the alarm point)  Charging interface: Type-C, 5V/1A  Battery: 1 * 3.7V, 1000mAh (included, battery voltage below 3.4V buzzer beeping to prompt charging, below 3.35V automatic shutdown)  Interface type: UHF (SL16)  Item size: 89 * 63 * 38mm / 3.50 * 2.48 * 1.50in  Package size: 100 * 80 * 50mm / 3.94 * 3.15 * 1.97in  Package weight: 160g / 5.64ounce  Packing List:  1 * SWR Meter