GABRIELLE 24 Hour Mechanical Timer 15 Minute Minimum Timer Rail Mount Built-in Battery, SUL180a AC220-240V Gray dé write The programmable mechanical timer makes your life smarter and more convenient. DIN rail installation, easy installation. Feature: Mechanical chronograph: large dial with clear scale; the movement at agrave; Quartz starts automatically a few minutes after power on. Easy to use. How to use: 24-hour timer with manual switch, supports timing (automatic on/off according to schedule) and permanent on/off. Built-in battery backup. DIN rail installation: easy disassembly and assembly, flexible use. Small size, light weight, easy installation. Transparent dustproof cover: dustproof and splash-proof, extending the service life. The transparent design does not affect the view of the dial. Widely used: Used in street lamps, ventilation, fountains, billboards, manufacturing plants, radio and television sets, etc. For dry indoor use only. Attention: 1. Installation should only be