Special 10 functions: 5 time functions are controlled by the power supply voltage, 4 time functions are controlled by the control input, and 1 latching relay function. Instructions: Convenient and well-arranged function and time range adjustment by rotary switches. Time range: The time scale is from 0.1 seconds to 10 days, divided into 10 ranges. Relay status: Its working status is indicated by the LED indicator. Product size: Ultra-small size, only 18mm wide, 35mm rail mounting.