Description:  It 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 fail. it has the features of low consumption, high-accuracy CMOS chip, strongly anti-jamming, simple and easy to set, confirms to IEC 60367 and CE certificated.    Features:  * Ideal for household use in pannel mounted;  * 3500 Watt / 16 Amps, 1NO;  * 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;  * Power in 24V and switch output;    Specification:   Temp.range: -20℃ ~+50℃;  Power Supply: 24VDC/AC;  Power consumption 4.5 VA (MAX);  Display: LCD;  Switching contact: 1 changeover switch;  Programs:16 on/off each day or week;  Hysteresis 2 sec/day (25℃);  Mini interval: 1 mins;  Capacity: 16A 250V AC;  Black-out: 60 days;  Timer range: 1min~168hr;  Recharge battery: 3V;  Average error: 1s/24h, 25°C;  Weight: 0.15kg;    Package included:  1 x Timer Switch;  1 x English User Manual