YSI ProSwap Logger — With Internal Li-ion Battery Configuration:Shallow Vented Depth — 4m cable 1°F Accuracy pH: ±0

1°F Accuracy pH: ±0

The Geosquirt Purge Pump is designed for purging shallow wells up to a maximum depth of 90 feet (27 m)

For those needing higher accuracy

Range: 0ºC to 50ºC Temperature Sensor: Platinum Resistance Temperature Detector (RTD) Accuracy: ±0

or see the full RaeSystems instrument range

YSI ProSwap Logger — With Internal Li-ion Battery Configuration:Shallow Vented Depth — 4m cable 1°F Accuracy pH: ±0The YSI ProSwap Logger is a slim, single port submersible monitoring sonde with built in temperature and depth sensors ideal for continuous, unattended deployments in groundwater wells, deployment pipes, streams, and shallow spaces. The internal Li ion battery version delivers at least 90 days of autonomous logging at a 15 minute interval with no external power needed, making it the right choice for remote sites. Add any single ProDSS Digital Smart