General purpose digital electronic timer can repeat programs with 16 ON and 16 OFF settings for different uses for flexible scheduling. Advanced preset one week before. Adjustment precision down to the minute. The built-in rechargeable battery and smart chip allow programming settings to be retained even in the event of a power outage.Features:7 Day Digital Programmable Timer - General purpose digital electronic timer with daily and weekly programs (10 different modes). Full time range from 1 min to 168 hours. Repeat programs with 16 ON and 16 OFF settings. Setting accuracy to the minute LCD display: LCD display shows real-time hours/minutes and ON/AUTO/OFF, large LCD display for easy reading, you can see each digit clearly.Built-in Rechargeable Battery - It has a built-in 1.2V/40mA rechargeable battery and an industrial-grade chip, so the device maintains the programming setting even during a power outage.Easy Operation - Large screen and clear key button for easy and precise operation. D+(day setting), H+(hour setting), M+(minute setting).Wide Application: This timer switch can automatically turn on/off electrical equipment according to user-set time. With high precision and strong anti-interference ability, the timer switch is ideal for controlling street lights, neon lights, production equipment, radio and television and many other household appliances.Specification:Tension : 220V / 110V / 12V / 24V (optional) Rated Contact Voltage: AC 180V-264V 50/60Hz.Number of circuits: 1 inverter (SPDT) Error: 2S/day (25On/off operation: 16 times on and off (manual/auto) Power: 4.5VA (maximum) Related: 1min-168hours Battery backup: 15 days Minimum interval: 1 minute Load capacity: 16A 250VAC Mechanical life: 10^7 Electrical life: 10^5 Humidity: 35-85% RH Operating Temperature: -10 - 55 Mounting method: 36mm DIN rail Item size: 87*64*35mm/3.43*2.52*1.38in Packing list:1 * digital timer switch