TM618 can automatically switch on and switch off various kinds of electric equipment at a preset time. It is widely used in 7 days programmable control of streetlight, neon light (sign), lamp, water heater, air conditioner, , electric cooker, booster, sprayer, bottler, preheater, agriculture facilities and broadcasting equipment etc. The digital timer switch is within battery, to save the programs for power failiure.it has the features of low consumption, high-accuracy CMOS chip, strongly anti-jamming, simple and easy to setperfect for household use in pannel mounted3500 Watt / 16 Amps, 1NO24 hours / 7 days a week programmableBuilt-in Battery for saving the memory when power failureAuto time error correction +/- 30 sec, weeklyRepeat programs with 16 on/off settings, and setting on/off manuallycolor: WhiteMaterial: ABS+electronic componentsTechnical Data:Model:TM618sHTemp.range: -20C+50CPower Supply: 110VPower consumption :4.5 VA (MAX)Display: LCDOutput:Power direct outputPrograms:8 on/off each day or weekHysteresis 2 sec/day (25C)Mini interval: 1 secondCapacity: 16A 250V ACBlack-out: 60 daysTimer range: 1min~168hrRecharge battery: 1.2VAverage error: 1s/24h, 25CPackage Contents:1 x Timer switch1 x User ManualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.