Timers can be daily switching timers, countdown and on/off timers as well as short switching cycle timers, universal. Automatically turn appliances on and off as needed to help simplify your daily work, reduce energy use and save on energy bills. Humanized design, large screen, clearer digital and digital display; completely silent, very suitable for home use. Protect your electronics, it is very helpful to limit the charging time of expensive electronic devices and prolong their lifespan. The timer is safe to use and operate, and has a wide range of applications, such as security equipment, household appliances, 3C digital, smart home, etc. Note: Installation guide not included, we strongly recommend you seek professional installation. Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Specifications:AC220V Color:As Shown Material:Plastic+Metal Package Contents: 2 x CN101A Industrial Timer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.