Prevents excessive drawdown during low-flow sampling; also functions as a standard level meter.
- Allows setting of drawdown limit, with link to controller for automatic interruption of purging when limit is reached; pumping resumes when well recharges.
- Rugged polyethylene-coated steel tape provides durable performance, accuracy to 0.01 feet.
- Overall Dimensions: 14x10-1/2x8" (37x27x20 cm); Weight: 7 lb. (3.2 kg) w/ 150' tape; Power: 9 volt battery; Probe: 5/8" O.D. x 7.5" L. (1.6x19 cm); Tape Length: 150 or 300 feet (46 or 91 m).