Features: 1.[Versatile Scheduling Options] With Up To 28 On Off Schedules For 7 Day Cycles Or Single Day Settings, Featuring Options For Always On Off, Automatic On Off, And Daylight Saving Time Modes To Suit Your Specific Needs. 2.[Built In Battery] Built In Battery Holding Settings, This Timer Switch Retains Your Programmed Settings During Power Outages, Eliminating The Hassle Of Resetting And Ensuring Your Schedules Remain Intact. 3.[Waterproof Box] Constructed With A Waterproof Pc Casing That Is Flame Retardant And Resistant To Uv, This Timer Switch Is Capable Of Withstanding Outdoor Conditions. Its Two Outlet Holes Prevent Water Ingress Into The Wiring Box. 4.[Wide Operating Temperature Range] Operating In Temperatures Ranging From ?10℃ To +55℃, This Timer Switch Ensures Long Lasting Performance And Reliability In Outdoor Applications. 5.[Versatile Usage] Designed For Controlling 1 Device, Suitable For Outdoor Indoor High Power Appliances Such As Pool Pumps, Heaters, Filters, And Other Motor Driven Devices. Specification Item Type: Timer Switch Material: Pc Rated Voltage: Ac85-265V Line Quantity Conversion Switch: Spdt Error Correcting: ≤2 Seconds Per Day (25℃) On Off Operation: 28 Times Power Consumption: 4.5 Va (Maximum) Service Life: Mechanical 10^7, Electrical 10^5 Display: Lcd Screen Shortest Interval: 1 Minute Operating Temperature: -10℃ To +55℃ Operating Humidity: 35 To 85%Rh Storage Power Supply: 1 X Lithium Ion Battery 200Mah (Built In) Battery Backup: ≤15 Days