An electronic timer sets HVAC equipment, lighting installations and appliances to run at daily, scheduled intervals to save your business electricity and money. An easy-to-program interval timer will turn on outdoor building lights, operate commercial ovens, and heat pools and spas. A 24-hour or seven-day timer with slide and push buttons is simple to program, with a highly visible digital liquid crystal display. Shop here for an electronic timer and wall-switch timers in decorative covers.