According to the detection diode characteristic fitting algorithm and dual reference segmented detection, the accuracy is better than 5% in the entire power range of 0.5w-150w Five interface display modes, one-click selection according to preference High-speed average detection mode, real-time display of efficiency, buzzer alarm when standing wave is greater than 2.0. Compatible with open source software code, free code modification brings more fun, USB firmware upgrade does not require a dedicated burner Multi-function buttons increase the fun of use and provide an interactive way to add functions in the future Frequency range: 1.6-50mhz Power measurement range: 0.5w-150w Standing wave measurement range: 1.0-99.9 Insertion loss: Less than 0.12db Insertion standing wave: less than equal 1.02 Measurement accuracy: better than ± 5 Standing wave alarm: greater than equal 2.0 (with shutdown function) RF interface type: sl16-m or n (default is m) Display content: forward power; standing wave; antenna end power; efficiency Power supply: built-in 3.7v/1000mah rechargeable lithium battery or USB Type-C Power off power consumption: Less than 0.1ua Data communication: USB Type-C Firmware upgrade: support Note: In FM or am mode, the continuous transmission power is recommended to be no more than 110W; SSB or CW can work for a long time at 200W; exceeding 500W will damage the detection components Colour:Black Material:Metal Package Contents: 1 x SWR Power Meter 1 x USB Cable