Principle of operation and introduction: S3J LCD counter is the latest ultra-small counter developed by our company, which adopts highly integrated SMD components, takes up little space, has a wide range of use and good anti-interference ability, and can be widely used in elevators, machinery, packaging, switchgear and other timing and counting fields. Relevant Technical Parameters Display Text height Power supply Built-in lithium battery Battery life Counting frequency Counting scope Reset mode Panel button or external terminal Protection grade Front panel protection Rear panel protection Capacity of resisting disturbance Operating temperature Storage temperature Ambient humidity