Groundwater Data Loggers

Heron Instruments’ dipperLogs are a durable, versatile and cost effective tool which will deliver accurate water level and temperature readings for many years. Groundwater professionals have been successfully employing the Heron family of instrumentation to monitor both open waters and wells, to perform pump and slug tests, and to complete wetland and tidal studies with excellent results for over 20 years.

With the dedicated, intuitive software, the dipperLog is quick and easy to program and launch and allows for simple data recovery. Easily save your data in a tabular display and graph and view both parameters side by side in a split screen.

Heron also offers various accessories to further enhance your logging experience. The wide range of transducer values (available in both absolute and vented models) will ensure the collection of the most accurate of levels.

PFAS (Per- and Polyflouroalkyl Substances) are used in products such as repellent/non-stick

PFAS-Free Data Logger

coatings or fire retardants. These chemicals are not known to break down and proven very persistent in the environment. Their potential to impact human health has prompted legislations of set maximum acceptable PFAS concentration levels in drinking water.

Numerous health studies have shown that certain PFAS may:

  • Interfere with the body’s hormones
  • Affect the immune system
  • Contribute to birth defects and/or learning disabilities in children
  • Increase cholesterol levels
  • Increase cancer risk

Heron Instruments is concerned for the environment and has taken steps to help eliminate PFAS sources to our water system. We are pleased to announce our NEW PFAS FREE ZONE, where we manufacture our dipperLog 64, dipperLog VENTED and 4-20mA Pressure Transmitter with wetted materials not known to contain PFAS.


dipperLog TOUGH Titanium Groundwater Data Logger – The dipperLog TOUGH is a premium logger, with titanium body and transducer coupled with Teflon O-rings, is suitable for use in the most caustic and hazardous of environments. The dipperLog TOUGH offers a memory capacity of 64,000 data points and a choice of pressure ranges read more…


dipperLog 64 Groundwater Data Logger – The dipperLog 64, our flagship datalogger, offers a maximum storage capacity of 64,000 data points and an extended battery life up to 10 years. The dipperLog 64 comes in a wide variety of pressure ranges and deployment options read more…


dipperLog VENTED Groundwater Data Logger – The dipperLog VENTED, incorporates a gauged transducer that measures pressure exempt from barometric influences. The dipperLog VENTED is removable from the vent cable allowing for easy field replacement. Attach the NEW Vent Cap Adapter for deployments (without vented cable) used in shallow wetland studies read more…


4-20mA Pressure Transmitter – The 4-20 mA Pressure Transmitter is easily integrated into an existing SCADA system or with a third party data logger. It will provide a continuous water level reading for your application. It can also be equipped with a digital display read more…


dipperLog 32 Groundwater Data Logger – The dipperLog 32 is the most economical data logger in our lineup, has a maximum storage capacity of 32,000 data points and an expected battery life up to 5 years. The dipperLog 32 is only available in a 30m/100’ pressure range read more…


barLog Barometric Logger – The barLog is configured to measure barometric pressure fluctuations necessary to compensate your absolute dipperLog data files. The barLog takes readings every 1 hour and has a capacity for 32,000 data points read more…