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Heron barLog
Heron Instruments, Inc.

Heron barLog

Regular price $314.00 Unit price per
Shipping calculated at checkout.

Heron barLog

The Heron Instruments barLog, barometric logger is used to automatically compensate readings stored on the dipperLog for changes in barometric pressure. The barLog, with readings every 1 hour and a memory capacity of 128,000 data points,  is recommended for long term monitoring or where more than one logger is deployed within a 5 km radius.

The dedicated, intuitive software makes the dipperLog quick and easy to program and launch. Simply recover your data, save your findings in a tabular display and graph, view both parameters side by side in a split screen.

Features & Advantages

  • Memory – 128,000 data sets (barometric pressure and temperature readings)
  • Download Speed – 128,000 data points in 6 minutes (21,333.33 Sets/min)
  • Battery – up to 15 years or 5,000,000 readings (depending on usage)
  • Calibration Certificate provided with each logger
  • Machined, 316 marine grade stainless steel body and transducer
  • Able to convert deployment options easily in the field


# of Data Points 128,000
Download Speed 21,333.33 Data Sets/min (128,000 readings downloads in 6 minutes)
Water Level Accuracy (Typical) +/- 0.05%FS (0°C to 50°C)
Temperature Accuracy (Typical) +/- 0.05°C 
(Temperature Sensor Meets 
ASTM E1112 and ISO 80601-2-56. 
NIST Traceability)
Operating Features
Pressure Ranges N/A
Overpressure Rating 2X Factory Calibrated Range
Operating Temperature -20°C to 80°C (-5°F to 175°F)
Pressure Resolution %FS 0.001
Expected Battery Life (Depending on Usage) Up to 5,000,000 Readings (
Up to 15 Years)
Warranty 3 Years
Physical Characteristics
Wetted Material 316 SS, Delrin®, Buna-N
O-Ring (Primary) Buna-N
O-Ring (Backup) Viton
Transducer 316 SS Piezoresistive Silicon
Length 145mm / 5.7”
Diameter 22mm / 0.87”
Weight 170g