Features Advanced Pre-Setting: Easily program your electronic relay switch timer a week in advance, providing convenient and control over your electrical devices. Daily Program Function: The digital timer switch offers daily programs, allowing you to automate your devices based on your daily routine, enhancing efficiency and convenience. 17 On/Off Settings: Enjoy the flexibility of 17 repeat programs for control over your devices, with the added convenience of manual override when needed. Lithium Battery Power Reserve: Benefit from uninterrupted even during power outages, thanks to the built-in lithium battery power reserve feature. Auto Timer Error Correction: Experience enhanced accuracy with the automatic timer error correction feature, ensuring timing with a weekly accuracy correction of +30 seconds. Features: 1、Advanced pre-setting one week before 2、Digital electronic timer switch with daily programs 3、Repeat programs with 17 on/off setting and manual over-ride 4、Lithium battery power reserve when electric supply cut off 5、Auto timer error correction +30sec,weekly Specification: Description: This timer switch could automatic turn on/off all kinds of electric equipment according to the time user set. With high precision and strong anti-interference ability, the timer switch is great for controlling street lamps, neon lamps, production equipment, radio and television and many other home appliances. Features: Advanced pre-setting one week before. Digital electronic timer switch with daily programs. Repeat programs with 17 on/off setting and manual over-ride. Lithium battery power reserve when electric supply cut off. Auto timer error correction +30sec,weekly. Panel mounted. Specification: Input Voltage: 24VAC/DC, 110VAC, 220VAC (Optional) Voltage Rating(Output): 220V to 250VAC 50/60Hz Hysteresis: 2 sec/day (25°C) ON/OFF : 17 ON/OFF Power: 7.5VA (MAX) Display: LCD Minimum Interval: 1 minute Switching : 1 changeover switch Power: Lithium battery Operating Temperature: -10°C to +40 °C Humidity: 35~85%RH Instruction: 1 .Press C button to power on switch. At first, press "time" button (in bottom middle of C and C/R), then press D+,H+,M+to set the clock to present time. Programming: Step End If the setting is wrong, please press C/R to cancel or reset the programs. If all buttons are locked(no response), press and hold C/R for 8 seconds to unlock. If you do not need 17 on&off settings, press "time" to end. Package Includes: 1 x Timer Switch Package List