Features: - Made of high quality materials, durable - 120W digital power standing wave meter - Direct reading of multiple parameters of forward and reverse power standing waves - 240*240 full color HD display - High standing wave alarm function - Delay shutdown function, start automatic startup function, battery undervoltage protection function. -LED dual indication function - Power fine-tuning function, standing wave fine-tuning function. - -key switch function between Chinese and English menus - Buzzer key on/off function - -key switching function of various display interfaces - Custom standing wave alarm setting function - Custom shutdown delay time setting function Specification: - Working frequency: 1.8-54Mhz - Measuring range: 0.5-120W (SSB mode up to 200w, buzzer alarm over 200w) - Standing wave range: 1-99.9 (default alarm is greater than 2.0, you can manually set the alarm point through the hidden function) - Charging interface: Type_c 5v/1A - Battery model: 3.7v/1000mAh (the buzzer will sound when the battery voltage is lower than 3.4v, and automatically shut down when the battery voltage is lower than 3.35v) - Interface Type: UHF (SL16) - Shell size: 88mm*63mm*38mm (excluding protruding parts) Package Included: 1*Standing wave meter Notes: 1. Due to various factors such as display brightness and light brightness, the actual color of the product may be slightly different from the website picture. 2. Please allow a slight deviation between the data and the manual measurement. Made of high quality materials, durable 120W digital power standing wave meter Direct reading of multiple parameters of forward and reverse power standing waves 240*240 full color HD display High standing wave alarm function