Feature: 1. 120W digital power standing wavemeter with forward and reflected power standing waves and multiple parameters direct reading function. 2. 240*240 full-color LCD display, you can see the forward power, reflected power, antenna power, VSWR, battery voltage, and antenna efficiency clearly. 3. It comes with a standing waves alarm feature and a buzzer-like one-button on/off feature. 4. Delayed power-off function, automatic power-on function for transmitting, and battery undervoltage protections function. 5. LED light double indication function. 6. Power fine-tuning feature, standing waves fine-tuning feature for amateur DIY use. 7. One-button switch function for multiple display interfaces. Customized standing waves alarm setting function. 8. Customized shutdown delay time setting function. Specification: 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. 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 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) 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 Package List: 1 * SWR Meter