This timer could automatic turn on/off all kinds of electric equipment according to the time user set. It has a built-in rechargeable battery and a industrial grade chip. With high accuracy and strong anti-interferences ability, the timer is great for controlling street lamps, production equipment, radio and televisions and many other home appliances. Digital electronics general purpose timer with daily and weekly programs. Repeat programs with 16 ON/OFF settings. To the minutes setting accuracy. LCD displays real time to Hour/minutes and ON/AUTO/OFF. DIN rails installation, DIN rails is not included.