★ 5.7-inch ultra-clear LCD screen.
★ Video playback function：the last test video could be played and observed, convenient for one person to operate and record videos.
★ Probe preheating function, do not need to worry about probe freeze in winter.
★ Ten colors are adjustable to observe diseases more clearly.
★ Chinese and English can be changed at will.
★ Grid ruler, quickly read out the size of the measurement target.
★ Fully waterproof probe.