Digital time switch clock SHT-31-channel digital switch clock controls various appliances in real time; daily, weekly, monthly and yearly DESCRIPTION Automatic conversion summer/winter time. 100 memory places. 4 types of settings – auto/constantly manually/random/holiday mode.TECHNICAL PARAMETERS Universal power voltage AC/DC 12 - 240 V or AC 230 V. Output contact: 1x changeover 16 A (AgSnO2). 2-MODULE, DIN rail mounting.