The automatic time setting via the integrated radio clock and the backup battery with a lifespan of approximately 10 years make this timer a long-lasting solution. Once programmed and saved, it remains accurate for 10 years. It couldn't be easier! Technical specifications: Shortest switching time 1 min, status display on the screen, with plug-in fuse, 28 on/off times per week, 4 on/off programs per day, including backup battery, high switching capacity of up to 3680 watts for resistive loads, inductive load up to a maximum of 3 A / 690 VA, operation at 230 V / 16 A, dimensions WxHxD 70x130x75 mm.