Heron dipper-Log 128+ Groundwater Data Logger Purge Pumps continuous photoionization detector (PID) for

continuous photoionization detector (PID) for permanent and semi-permanent monitoring of volatile organic compounds in ambient air

A pH measurement is only as good as the buffer it was calibrated against

higher traffic areas

Temperature-vs-conductivity chart printed on each bottle

Regular for general use

Heron dipper-Log 128+ Groundwater Data Logger Purge Pumps continuous photoionization detector (PID) forThe Heron dipper Log 128+ is a groundwater data logger that records both pressure (water level) and temperature, storing up to 128,000 data sets with download speeds of over 21,000 readings per minute. It suspends in the well on a cord or direct read cable and connects to a laptop via a PC communication cable to program, download, and retrieve data. Application Used for long term groundwater monitoring, aquifer testing, and pump slug testing wherever