Precision Dual Range Controllers allow precise control of the cycle time and the air pressure supplied to the bladder pump. This degree of control makes it easy to obtain a repeatable sample. Two independent air pressure regulators with gauges are provided. The encapsulated timer module provides accurate, independent timing of the pressure and exhaust cycles from 0.1 to 10 seconds. The standard controller has no compressor and requires an external air source.

Pressure Ranges: 2-50, 5-100 psig
Max Depth: 50 ft (External air source for deeper applications)