This product appears in the Heron Instruments Catalogue 2026
Rolls-Royce
Bureau Veritas
Renouveau La Fontaine
Englobe
National Defence
Government of QuébecOverview
The Heron barLog records barometric pressure and temperature at the surface so the readings of absolute dipperLog data loggers can be compensated for changes in air pressure. One barLog covers every logger within a 5 km (3 mi) radius.
- Compensates dipperLog 128+ and dipperLog TOUGH+ readings for barometric pressure changes
- One barLog per job site covers loggers within a 5 km (3 mi) radius
- Stores 128,000 readings; reading interval set in the free dipperLog software (Windows and Mac)
- Lithium battery: up to 5 million readings or up to 15 years, depending on use
- Same 145 mm x 22 mm 316 stainless steel body as the dipperLog, IP68
Request a quote for pricing and availability.
Specifications
- Memory
- 128,000 readings
- Download Speed
- 19,200 bps (128,000 readings in about 6 minutes)
- Temperature Accuracy
- ± 0.05 °C typical (-20 to +50 °C)
- Temperature Resolution
- 0.0078 °C
- Operating Temperature
- -20 to 80 °C
- Battery
- Lithium cell, up to 5 million readings or up to 15 years (depending on use)
- Logging
- Linear and predetermined log, 1 second to 255 hours; immediate or future start
- Communication
- USB via the Heron PC communication cable
- Transducer
- 316 SS piezoresistive silicon
- Environmental Rating
- IP68
- Dimensions
- 145 mm (5.7 in) long x 22 mm (0.87 in) diameter
- Weight
- 170 g (0.37 lb)
- Warranty
- 2 years
Documents
Calibration and repair
Send it to our Montreal service team. We evaluate the instrument and send a detailed quote before any work starts.
Parts & accessories
-
Price on quote
Compare with similar models
Heron Instruments · Water Level Datalogger| Spec | This model Heron barLog Barometric LoggerPrice on quote
| Heron dipperLog TOUGH+ Titanium Groundwater Data LoggerPrice on quote |  Heron dipperLog 128+ Absolute Groundwater Data LoggerPrice on quote
|
|---|---|---|---|
| Memory | 128000 readings | 128000 readings | 128000 readings |
| Battery Life | 15 years | 15 years | 15 years |
Questions, answered
How fast will I get a price?
Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET.
Can we pay on account or by purchase order?
Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.
How is shipping charged?
On quotes and account orders, freight is F.O.B. Montréal: the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice. In-stock items can also be picked up the same day in Montréal (8605 rue du Champ-d'Eau).
Can I return it?
Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy
Can ERE calibrate or repair it?
Yes. Our Montréal service shop calibrates and repairs it in-house. Request service
What warranty does it carry?
The manufacturer's warranty applies. The exact terms are in the warranty document. Read the warranty
Related equipment we stock
Model 3250 LevelVent 6 Vented Water Level Datalogger
Accuracy: ± 0.05 % FS | Memory: 150000 readings | Battery Life: 10 years
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Direct Read Cable: 2 to 280 m | Well Size: 2 in
Heron dipperLog TOUGH+ Titanium Groundwater Data Logger
Memory: 128000 readings | Accuracy: ± 0.05 % FS | Battery Life: 15 years
Heron Leachate+ (Series 3000) Landfill Leachate Level Meter
Tape Lengths: 30 to 300 m | Temperature Range: -45 to 135 °C | Probe Diameter: 24.5 mm