Features:* You can use the tier to SWITCH ON/OFF any elctrical equipments at a preset timer* Ideal for household use in DB Boards* 6500 Watt / 30 Amps* 24 hours / 7 days a week programmable* Built-in battery for backup the memory (save the programs you set)when power failure* Auto time error correction +/- 30 sec, weekly* Repeat programs with 17 on/off settings, and setting on/off manuallySpecification:Model: TM616Temp.range: -20°C+50°CWorking Voltage : 12/110/220VPower consumption 4.5 VA (MAX)Display: LCDSwitching Contact: 1 changeover switchPrograms: 17 on/off each day or weekHysteresis 2 sec/day (25°C)Mini Interval: 1minCapacity: 30(16) 250V ACBlack-out: 60 daysTimer Range: 1min~168hrRecharge Battery: 1.2V 40MaAverage Error: 1s/24h, 25°CPackage Included:1x TM616 Programmable Digital Timer