KD4190 Digital three phase sequence indica

It can be used for indicating the phase sequence and checking the open phase of three phase AC power.

Features

• Can be used frequency range from 40Hz to 60Hz voltage from 100V to 600V of three phase AC power
• When opening phase, the LED will turn off with buzzing.Timewise arrow and sequence of LED turning on indicate the three AC power phase.
• No metal parts outside,good insulate capability for safety.
• Small size and light weight for carrying easily.