Features： 1、Work Process: The digital timer relay is a device that allows you to connect and disconnect any electrical device through daily and weekly programming. 2、LCD Display: The timer relay features an LCD display that shows realtime time and automatic on or off in hours or minutes. 3、Programmable: The digital timer relay can be programmed with up to 20 on or off settings. It can be programmed to your requirements and it has an internal battery backup which allows it to keep the switch running without power. 4、Flame Retardant PC Material: This digital timer relay is made of flame retardant PC material with craftsmanship, which makes it safe to use. 5、Applicable Scenarios: The digital timer relay is easy to operate and widely used in control systems, such as mechanical equipment, advertising light boxes, irrigation, lighting, street lights, swimming pools, etc. Specification： Item Type: Digital Timer Relay Size: Approx. 36 x 86 x 65mm / 1.4 x 3.4 x 2.6in Material: Flame Retardant PC Model: THC15A Current: 16A Power Consumption: 5W Built In Battery: NiMH Nickel Metal Hydride Battery Capacity: 40mAh Display: LCD Minimum Timing: 1 Minute Time Control Range: 1 Minute to 168 Hours Timing Error: < ±2second/day Ambient Temperature: -10-50℃ Relative Humidity: < 95% Daily Or Weekly Cycle, Programmable 20 Groups On And Off, Manual Automatic Dual-Use Use: Digital Display Relays Are Good Office And Industrial Tools Package List： 1 x LCD Digital Timer Relay