Solinst Model 410 Peristaltic Pump Add Battery Holder:Yes nor the drive period long

nor the drive period long enough

If there is an oil/product layer on the top of the water (LNAPL)

Resistant to abrasion

The Mini Interface Meter enhanced  electronics include automatic circuitry testing

This overrides the infrared circuit

Solinst Model 410 Peristaltic Pump Add Battery Holder:Yes nor the drive period longSolinst Model 410 Peristaltic Pump Designed for field use, the reversible flow Peristaltic Pump from Solinst is ideal for vapor sampling or water sampling from shallow wells and surface water. It can be used for vacuum pumping and for pressure delivery of liquids or gases. The mechanical peristaltic operation uses rotating rollers to depress the silicone tubing, creating a vacuum, which displaces any fluid or gas in the chosen direction. It is