... or close kinds of electrical apparatus and power automatically, according to preset time, the items can be streetlight, nion light (sign ... battery, in 1.2V/40Ma, high-accuracy CMOS chip, strongly anti-jamming, easy to use. Digital Timer Technical Data Temp.range: -20 ... , MO-WE, TH-SA.(If same everyday, no need to press this key)4Press TimerSetting 1 off time (display 1 off)5Press ...