Timed or demand dose control panels from Clarus Environmental provide residential and commercial customers with a reliable means of controlling single-phase pumps in onsite installations. A programmable timer activates and deactivates pumps. Using float switches, a panel can be set up to have low-level cutoff, timer run or high-water indicator. In a low-level situation, the circuit is not complete and the pump will not be activated. In a high-water situation, an alarm will sound with audio and visual indicators. Simplex or duplex models are available. Applications requiring a timed dose panel include media filter systems, pressure distribution systems and mound systems. Demand dose control panels turn pumps on and off based on water levels in the tank or basin. All panels have integrated audible and visual alarms, motor contactors, circuit breakers and pump run switches. Units are available in either simplex or duplex versions and operate under a variety of voltages. 800/928-7867; www.clarusenvironmental.com.