www.foodengineeringmag.com/articles/88726-wireless-system
Wireless system
June 1, 2011

The Omega HPWS series of long-range wireless system simultaneously monitors and controls 4 switches or valves up to 8 miles away. Capable of supervising the fluid level in a tank, operation of a distant pump from a control station or monitoring the status of a pump line, it has a weatherproof NEMA 4X (IP66) enclosure.
OMEGA; 203-359-1660; www.omega.com