The programmable mechanical timer makes your life smarter and more convenient. DIN rail installation, easy installation. Feature: Mechanical chronograph: Large dial with clear scale; Quartz movement starts automatically within a few minutes after power on. Easy to use: 24-hour timer with manual switch, supports timing (automatically turn on/off according to schedule) and permanent on/off. DIN rail installation: Easy disassembly and assembly, flexible use. Small size, light weight, easy installation. Transparent dust cover: Dustproof and splashproof, extending the service life. The transparent design does not affect the viewing of the dial. Wide range of uses: used in street lamps, ventilation, fountains, billboards, production equipment, radio and television equipment, etc. For dry indoor locations only. Pay attention: 1. Installation should only be carried out by a qualified electrician. 2. Please read the user manual carefully before use. 3. Due to manual measurement and different