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Underwater Data Loggers

HOBO waterproof data loggers are widely recognised as the industry standard for gathering and monitoring water data for months – even years – at a time. They can withstand a wide range of environmental conditions including temperature extremes, rushing rocky streams and ocean storms. Water temperature, water level, dissolved oxygen and fresh water conductivity models are available.

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HOBO MX2501 - pH and Temperature Bluetooth Data Logger

The new low-cost HOBO® MX2501 pH and Temperature logger is designed for long-term monitoring of pH in estuaries, lakes, streams, rivers, and oceans.
$1,401.00 ex GST

HOBO Pendant MX2201 - Water Temperature Bluetooth Data Logger

The HOBO MX2201 water temperature logger leverages the power of Bluetooth Low Energy (BLE) to deliver accurate temperature measurements straight to your iOS or Android mobile device
$101.00 ex GST

HOBO Pendant MX2202 - Temperature/Light Bluetooth Data Logger

The HOBO MX2202 water temperature/light level logger leverages the power of Bluetooth Low Energy (BLE) to deliver accurate temperature and relative light-level measurements straight to your iOS or Android mobile device.
$129.00 ex GST

HOBO TidbiT MX2203 - Water Temperature 400' Bluetooth Data Logger

The HOBO MX2203 TidbiT water temperature logger leverages the power of Bluetooth Low Energy (BLE) to deliver high-accuracy temperature measurements straight to your iOS or Android mobile device.
$240.00 ex GST

HOBO TidbiT MX2204 - Water Temperature 5000' Bluetooth Data Logger

The HOBO MX2204 TidbiT water temperature logger leverages the power of Bluetooth Low Energy (BLE) to deliver high-accuracy temperature measurements straight to your iOS or Android mobile device.
$259.00 ex GST

HOBO U22-001 - Water Temperature Pro v2 Data Logger

The durable HOBO Water Temp Pro v2 has 12-bit resolution and a precision sensor for ±0.2°C accuracy over a wide temperature range. Designed with a durable streamlined case for extended deployment in fresh or salt water.
$240.00 ex GST

HOBO TidbiT v2 UTBI-001 - Water Temperature USB Data Logger

The tiny TidbiT v2 has 12-bit resolution and a precision sensor for ±0.2 °C accuracy over a wide temperature range. The rugged TidbiT is waterproof to 300m
$248.00 ex GST

HOBO MX2001 - Water Level Bluetooth Data Logger

The HOBO® MX2001 is the industry’s first water level data logger designed for convenient wireless setup and download from mobile devices via Bluetooth Low Energy.
$1,199.00 ex GST

HOBO U20L - Low Cost Water Level Data Logger

The HOBO U20L Series is the industry’s lowest-cost family of loggers for monitoring water level and temperature in both fresh and saltwater, in depths up to 30 Meters.
$603.00 ex GST

HOBO U20-001-04 - 4 Meter (13') Depth Water Level Data Logger

Providing a narrow range of measurement for the best possible accuracy, this version is ideal for monitoring water levels and temperatures in wells, streams, lakes and wetlands.
$998.00 ex GST

HOBO U20-001-01 - 9 Meter (30') Depth Water Level Data Logger

The HOBO Water Level data logger features high accuracy at a great price and ease-of-use, with no cumbersome vent tubes or desiccants to maintain. This data logger is ideal for recording water levels and temperatures in shallow wells, streams, lakes and freshwater wetlands.
$998.00 ex GST

HOBO U20-001-02 - 30 Meter (100') Depth Water Level Data Logger

The HOBO Water Level data logger features high accuracy at a great price and ease-of-use, with no cumbersome vent tubes or desiccants to maintain. This data logger is ideal for recording water levels and temperatures in shallow wells, streams, lakes and freshwater wetlands.
$998.00 ex GST

HOBO U20-001-03 - 76 Meter (250') Depth Water Level Data Logger

The HOBO water level data logger features high accuracy at a great price and ease-of-use, with no cumbersome vent tubes or desiccants to maintain. This data logger is ideal for recording water levels and temperatures in shallow wells, streams, lakes and freshwater wetlands.
$998.00 ex GST

HOBO Pendant® UA-001-08 - Temperature/Alarm Data Logger (8K)

A miniature, waterproof one-channel temperature data logger, this model is value-priced for short-term shipping applications or long-term monitoring
$79.00 ex GST

HOBO Pendant® UA-001-64 - Temperature/Alarm Data Logger (64K)

A miniature, waterproof one-channel temperature data logger, this model is value-priced for short-term shipping applications or long-term deployment.
$110.00 ex GST

HOBO Pendant® UA-002-08 - Temperature/Light Data Logger (8K)

A miniature, waterproof two-channel temperature and relative light level data logger, this 8K model is value-priced for deployment in indoor, outdoor, and underwater applications measuring relative light levels and ambient temperatures.
$88.00 ex GST

HOBO Pendant® UA-002-64 - Temperature/Light Data Logger (64K)

A miniature two-channel temperature and relative light level data logger, this 64K model is waterproof and value-priced for deployment in indoor, outdoor, and underwater applications measuring relative light levels and ambient temperatures.
$120.00 ex GST

HOBO U12-015-03 - Deep Ocean Temperature Data Logger

The HOBO U12 Deep Ocean Water Temperature Logger is a single-channel water temperature logger with 12-bit resolution that can record up to 43,000 measurements. With its robust titanium housing, this logger is designed to withstand ocean extremes of depth and temperature.
$1,610.00 ex GST

HOBO U12-015 - Stainless Temperature Data Logger

The HOBO U12 Stainless Temperature Data Logger is ideal for food, pharmaceutical, autoclave, and other applications where high-accuracy temperature data is critical. With its broad temperature range (-40 to 125C) and food-grade stainless steel housing, the U12 Stainless Temperature Data Logger withstands process conditions from pasteurization to flash freezing and washdown. The U12 Stainless is also ideal for high-temperature or deep underwater applications.
$506.00 ex GST

HOBO U12-015-02 - 5-Inch Probe Temperature Data Logger

The HOBO U12 Stainless 5-inch Probe Temperature Data Logger is ideal for monitoring internal temperature of foods or any application where fast response is critical.
$694.00 ex GST

HOBO Pendant® UA-004-64 - G Data Logger

Onset's HOBO® Pendant G data logger measures acceleration or angular displacement in 1, 2 or 3 axes
$155.00 ex GST

HOBO U24-001 - Conductivity/Salinity (Fresh Water) Data Logger

The HOBO U24 Conductivity Logger is a high-accuracy, cost-effective water quality data logger for measuring conductivity and temperature in streams, lakes, and other freshwater sources
$1,512.00 ex GST

HOBO U24-002-C - Conductivity/Salinity (Salt Water) Data Logger

The HOBO U24-002-C is a cost-effective data logger for measuring salinity, conductivity and temperature in saltwater environments with relatively small changes in salinity (±5,000 μS/cm) such as saltwater bays, or to detect salinity events such as upwelling, rainstorm, and discharge events.
$1,512.00 ex GST

HOBO U26-001 - Dissolved Oxygen Data Logger

The HOBO U26 Dissolved Oxygen Logger is a highly precise, low-cost data logger for measuring concentrations of oxygen in lakes, streams, rivers, estuaries, and coastal waters. Used by aquatic biologists, hydrologists, and other research professionals, the HOBO U26 combines the high accuracy, robust performance of industry-leading RDO® Basic (Rugged Dissolved Oxygen) sensor technology with an easy-to-maintain design.
$2,519.00 ex GST

HOBO Water Level Logger Starter Kit 4 Meter (13’)

Combining high accuracy water level measurements with out-of-the-box convenience, this money-saving kit includes everything needed to start logging right away. It is ideal for monitoring water levels and temperatures in wells, streams, lakes and freshwater wetlands.
$1,218.00 ex GST

HOBO Water Level Logger Starter Kit 9 Meter (30’)

Combining high accuracy water level measurements with out-of-the-box convenience, this money-saving kit includes everything needed to start logging right away. It is ideal for monitoring water levels and temperatures in wells, streams, lakes and freshwater wetlands.
$1,218.00 ex GST

HOBO Water Level Logger Starter Kit 30 Meter (100’)

Combining high accuracy water level measurements with out-of-the-box convenience, this money-saving kit includes everything needed to start logging right away. It is ideal for monitoring water levels and temperatures in wells, streams, lakes and freshwater wetlands.
$1,218.00 ex GST

HOBO Water Level Logger Deluxe Kit 30 Meter (100’) - KIT-D-U20-02

Combining high accuracy water level measurements with out-of-the-box convenience, this money-saving kit includes everything needed to start logging right away. It is ideal for monitoring water levels and temperatures in wells, streams, lakes and freshwater wetlands, as well as barometric pressure.
$2,292.00 ex GST

HOBO Water Level Logger Deluxe Kit 9 Meter (30’) - KIT-D-U20-01

Combining high accuracy water level measurements with out-of-the-box convenience, this money-saving kit includes everything needed to start logging right away. It is ideal for monitoring water levels and temperatures in wells, streams, lakes and freshwater wetlands, as well as barometric pressure.
$2,292.00 ex GST

HOBO Water Level Logger Deluxe Kit 4 Meter (13’) - KIT-D-U20-04

Combining high accuracy water level measurements with out-of-the-box convenience, this money-saving kit includes everything needed to start logging right away. It is ideal for monitoring water levels and temperatures in wells, streams, lakes and freshwater wetlands, as well as barometric pressure.
$2,292.00 ex GST