Programmable multifunctional timer. Timer REV-303 is a microprocessor-based programmable device designed to control the loads in real timewithout permanent maintenance with minimal expenses and maximal electricity saving.Timer REV-303 can be used to switch on the heating system, pumps, fans, school signals, street illumination,highlighting of buildings fronts (around territories, car parking and other objects).Timer REV-303 can automatically defi..