Description :
TM617 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, billboard, 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 set.
 Features :Ideal for household use in pannel mounted.
3500 Watt / 16 Amps, 1NO+1NC.
24 hours / 7 days a week programmable.
Built-in Battery for saving the memory when power failure.
Auto time error correction +/- 30 sec, weekly.
Repeat programs with 16 on/off settings, and setting on/off manually.Specification :
ModelTM-617Temp.range: -20°C+50°CPower Supply: 220-240V ACPower consumption 4.5 VA (MAX)Display: LCDSwitching contact: 1 changeover switchPrograms:16 on/off each day or weekHysteresis 2 sec/day (25°C)Mini interval: 1minCapacity: 16(8) 250V ACBlack-out: 60 daysTimer range: 1min~168hrRecharge battery: 1.2V 40MaAverage error: 1s/24h, 25°CWeight: 0.15kg
Package includeds :
1 x Timer Switch1 x User Manual
 Details pictures :