Van Essen CTD-Diver Water Level & Conductivity Loggers

The Van Essen CTD-Diver is a datalogger designed to measure water pressure, electrical conductivity and temperature.

Features

  • Compact size: 22mm diameter x 135mm length
  • Stores 144,000 records of time, pressure, temperature and conductivity
  • Innovative ceramic casing aids durability in brackish and salt water
$2,144.91
Stock Check Availability  
Van Essen CTD-Diver Water Level & Conductivity Loggers

Overview
The Van Essen CTD-Diver works wherever there is a need to monitor groundwater levels and saltwater intrusion, injected wastewater, or contamination from chemical discharges and landfill sites. The CTD-Diver is equipped with a four-electrode conductivity sensor that measures electrical conductivity from 0 to 120 mS/cm. There are two options for measuring conductivity: true or specific conductivity at 25 degrees C. Additionally, pressure and temperature are measured and recorded.

Questions & Answers
What software is needed for the CTD logger?
Diver-Office is a free software that can be downloaded on the Van Essen website. You can use the software to export data reports, visualize data and change logger settings.
How many measurements can the CTD Diver hold?
The memory capacity for the logger is 48,000 measurements.
Does the CTD diver need calibrated prior to use?
The logger is factory calibrated for temperature, pressure and conductivity prior to shipment. To calibrate conductivity in the field, a 2-point calibration (dry air/standard) can be performed to ensure accurate readings and a 4-point calibration will bring the logger up to specifications for the full-measurement range for conductivity.
Can this instrument be deployed as a CTD profiler? Does it provide real time data?
The Van Essen CTD-Divers are intended for monitoring conductivity, temperature and depth over a longer-term deployment. If you are interested in a meter that can measure these parameters in real time, with a topside display, the YSI ProSolo with conductivity/temperature probe and the option to add additional parameters later on. 
Are the DI27x CTD-Divers still available?
The DI271, DI271, DI273, and DI1274 CTD-Divers were discontinued in late 2021 and replaced with the newer DI28x models. Notable improvements include more memory, and a lower price point.
Did you find what you were looking for?

Select Options

  Products 0 Item Selected
Image
Part #
Description
Price
Stock
Quantity
Side profile of the Van Essen CTD-Diver logger.
DI281
CTD-Diver water level, conductivity & temperature logger, 10m range
$2,144.91
Check Availability  
Van Essen CTD-Diver Water Level & Conductivity Loggers
DI282
CTD-Diver water level, conductivity & temperature logger, 50m range
$2,144.91
Check Availability  
Van Essen CTD-Diver Water Level & Conductivity Loggers
DI283
CTD-Diver water level, conductivity & temperature logger, 100m range
$2,144.91
Check Availability  
Van Essen CTD-Diver Water Level & Conductivity Loggers
DI284
CTD-Diver water level, conductivity & temperature logger, 200m range
$2,144.91
Check Availability  
  Accessories 0 Item Selected
Notice: At least 1 product is not available to purchase online
×
Multiple Products

have been added to your cart

There are items in your cart.

Cart Subtotal: $xxx.xx

Go to Checkout

In The News

Van Essen Diver-Link Cellular Telemetry System with Diver-Hub

The Van Essen Diver-Link Cellular Telemetry System enables professionals to monitor water level, conductivity and temperature readings from their home or office. The near real-time data allows scientists, managers, and other environmental professionals to monitor flood events, well depths and groundwater levels.  Long-term monitoring allows users to develop trends on ever-changing climate conditions. The Van Essen Divers ( CTD-Diver, Cera-Diver, TD-Diver and Mirco-Diver) work well for monitoring water supply, tailing ponds, dewatering, contaminant plumes and hazardous waste storage sites . The Diver-Link allows users to monitor groundwater via the Diver-Hub Web Portal for real-time management of site data, equipment and water levels.

Read More

Sargassum Surge: How Seaweed is Transforming our Oceans and Coastal Ecosystems

Until recently, Sargassum –a free-floating seaweed–was distributed throughout the Sargasso Sea , the north Caribbean Sea, and the Gulf of Mexico. But in the space of a decade, this seaweed has, as one scientist remarks , “Gone from a nonfactor to the source of a terrible crisis.” Driven by climate change, anomalous North Atlantic Oscillation in 2009-2010 and a glut of anthropogenic pollutants, sargassum has proliferated. Seasonally recurrent mats as deep as 7m now bloom in the “Great Atlantic Sargassum Belt” (GASB), which covers areas of the Atlantic from West Africa to the Caribbean Sea and Gulf of Mexico. Every year, millions of tons wash up along the shores of more than 30 countries . Dr.

Read More

Great Lakes Research Center: Designing Targeted Monitoring Solutions

According to the National Oceanic and Atmospheric Administration ( NOAA ), the Great Lakes have more miles of coastline than the contiguous Atlantic and Pacific coasts combined and contain 20 percent of the world's freshwater, making it a critical region to protect and conserve. Continuous monitoring and data-informed resource management are key components of managing waters in the region. Hayden Henderson, a research engineer with the Great Lakes Research Center (GLRC), designs and deploys monitoring platforms throughout the Great Lakes. With a background in environmental engineering, Henderson enjoyed the challenge of creating systems and making them work to obtain difficult, remote measurements.

Read More