Product attributes: AC means the products only work with AC current.Panel mounted.Advanced pre-setting one week before.Digital electronic timer switch with daily and weekly programs.Repeat programs with 16 on/off setting and manual override. NiH battery reserve when electric supply cut off.Color: gray whiteMaterial: plasticTechnical Data:Model: AHC30ATemprange: -20C+50C Supply: AC 220V 30A consumption 45 VA (MAX)Display: LCDSwitching contact: 1 changeover switchPrograms:16 on/off each day or weekHysteresis 2 sec/day (25C)Mini interval: 1minCapacity: 16(8) 250V ACBlack-out: 60 daysTimer range: 1min~168hrRecharge battery: 12V 40MaAverage error: 1s/24h, 25CWeight: 015kgPackage Contents:1 x SWITCH RelayOnly the above package content, other products are not included.Note: Light 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.