Van Essen TD-Diver Water Level Loggers

The TD-Diver is a reliable instrument for the autonomous measuring and recording of groundwater level and temperature.

Features

  • Compact size: 22mm diameter x 110mm length
  • Stores 72,000 records of time stamp, pressure and temperature with backup
  • Continuous and fixed length memory (linear sample method)
Your Price $575.00
In Stock
Van Essen
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Free Ground ShippingFree Ground Shipping
ImagePart#Product DescriptionPriceStockOrder
Van Essen TD-Diver Water Level LoggersDI801 TD-Diver water level & temperature logger, 10m range
$575.00
In Stock
Van Essen TD-Diver Water Level Loggers DI802 TD-Diver water level & temperature logger, 20m range
$575.00
In Stock
Van Essen TD-Diver Water Level Loggers DI805 TD-Diver water level & temperature logger, 50m range
$575.00
Usually ships in 3-5 days
Van Essen TD-Diver Water Level Loggers DI810 TD-Diver water level & temperature logger, 100m range
$575.00
Usually ships in 3-5 days
Van Essen TD-Diver Water Level Loggers
DI801
TD-Diver water level & temperature logger, 10m range
In Stock
$575.00
Van Essen TD-Diver Water Level Loggers
DI802
TD-Diver water level & temperature logger, 20m range
In Stock
$575.00
Van Essen TD-Diver Water Level Loggers
DI805
TD-Diver water level & temperature logger, 50m range
Usually ships in 3-5 days
$575.00
Van Essen TD-Diver Water Level Loggers
DI810
TD-Diver water level & temperature logger, 100m range
Usually ships in 3-5 days
$575.00
ImagePart#Product DescriptionPriceStockOrder
Van Essen Baro-Diver Barometric Pressure Logger DI800 Baro-Diver pressure & temperature logger, 1.5m range
$450.00
Usually ships in 3-5 days
Van Essen Diver Interface Unit AS330 Diver interface unit, USB
$205.00
Usually ships in 3-5 days
Van Essen Diver Data Cable Interface Unit AS327 Diver data cable interface unit for AS6xxx Diver Data Cables, USB
$200.00
In Stock
Van Essen Diver Smart Interface Cable AS346 Diver smart interface cable for AS2xxx Diver Data Cables, USB
$215.00
Usually ships in 3-5 days
Van Essen Diver-Mate Data Download Unit DM421 Diver-Mate data download unit
$250.00
Usually ships in 3-5 days
Van Essen Diver-SDI Interface Box AS379 Diver-SDI interface box, SDI-12
$300.00
Usually ships in 3-5 days
Van Essen Diver-MOD Interface Box AS339 Diver-MOD interface box, RS-485 Modbus RTU
$300.00
Usually ships in 3-5 days
Van Essen Diver-DXT Radio Transmitter AS401 Diver-DXT radio transmitter with barometric pressure sensor
$450.00
Usually ships in 3-5 days
Van Essen Diver-Gate(M) Radio Receiver AS345 Diver-Gate(M) radio receiver
$680.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2001 Diver DXT data cable, 1m
$149.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2002 Diver DXT data cable, 2m
$151.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2003 Diver DXT data cable, 3m
$153.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2004 Diver DXT data cable, 4m
$155.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2005 Diver DXT data cable, 5m
$157.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2007 Diver DXT data cable, 7m
$161.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2010 Diver DXT data cable, 10m
$167.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2015 Diver DXT data cable, 15m
$177.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2020 Diver DXT data cable, 20m
$187.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2030 Diver DXT data cable, 30m
$207.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2040 Diver DXT data cable, 40m
$227.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2050 Diver DXT data cable, 50m
$247.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2060 Diver DXT data cable, 60m
$267.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2080 Diver DXT data cable, 80m
$307.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2100 Diver DXT data cable, 100m
$347.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2150 Diver DXT data cable, 150m
$447.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2200 Diver DXT data cable, 200m
$547.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2250 Diver DXT data cable, 250m
$647.00
Usually ships in 3-5 days
Van Essen Diver DXT Data Cables AS2300 Diver DXT data cable, 300m
$747.00
Usually ships in 3-5 days
Van Essen Diver-Link Cellular Telemetry System DN421 Diver-Link cellular telemetry system with internal antenna, battery sold separately
$749.00
Usually ships in 3-5 days
Baro-Diver pressure & temperature logger, 1.5m range
Usually ships in 3-5 days
$450.00
Diver interface unit, USB
Usually ships in 3-5 days
$205.00
Diver data cable interface unit for AS6xxx Diver Data Cables, USB
In Stock
$200.00
Diver smart interface cable for AS2xxx Diver Data Cables, USB
Usually ships in 3-5 days
$215.00
Diver-Mate data download unit
Usually ships in 3-5 days
$250.00
Diver-SDI interface box, SDI-12
Usually ships in 3-5 days
$300.00
Diver-MOD interface box, RS-485 Modbus RTU
Usually ships in 3-5 days
$300.00
Diver-DXT radio transmitter with barometric pressure sensor
Usually ships in 3-5 days
$450.00
Diver-Gate(M) radio receiver
Usually ships in 3-5 days
$680.00
Diver DXT data cable, 1m
Usually ships in 3-5 days
$149.00
Van Essen Diver DXT Data Cables
AS2002
Diver DXT data cable, 2m
Usually ships in 3-5 days
$151.00
Van Essen Diver DXT Data Cables
AS2003
Diver DXT data cable, 3m
Usually ships in 3-5 days
$153.00
Van Essen Diver DXT Data Cables
AS2004
Diver DXT data cable, 4m
Usually ships in 3-5 days
$155.00
Van Essen Diver DXT Data Cables
AS2005
Diver DXT data cable, 5m
Usually ships in 3-5 days
$157.00
Van Essen Diver DXT Data Cables
AS2007
Diver DXT data cable, 7m
Usually ships in 3-5 days
$161.00
Van Essen Diver DXT Data Cables
AS2010
Diver DXT data cable, 10m
Usually ships in 3-5 days
$167.00
Van Essen Diver DXT Data Cables
AS2015
Diver DXT data cable, 15m
Usually ships in 3-5 days
$177.00
Van Essen Diver DXT Data Cables
AS2020
Diver DXT data cable, 20m
Usually ships in 3-5 days
$187.00
Van Essen Diver DXT Data Cables
AS2030
Diver DXT data cable, 30m
Usually ships in 3-5 days
$207.00
Van Essen Diver DXT Data Cables
AS2040
Diver DXT data cable, 40m
Usually ships in 3-5 days
$227.00
Van Essen Diver DXT Data Cables
AS2050
Diver DXT data cable, 50m
Usually ships in 3-5 days
$247.00
Van Essen Diver DXT Data Cables
AS2060
Diver DXT data cable, 60m
Usually ships in 3-5 days
$267.00
Van Essen Diver DXT Data Cables
AS2080
Diver DXT data cable, 80m
Usually ships in 3-5 days
$307.00
Van Essen Diver DXT Data Cables
AS2100
Diver DXT data cable, 100m
Usually ships in 3-5 days
$347.00
Van Essen Diver DXT Data Cables
AS2150
Diver DXT data cable, 150m
Usually ships in 3-5 days
$447.00
Van Essen Diver DXT Data Cables
AS2200
Diver DXT data cable, 200m
Usually ships in 3-5 days
$547.00
Van Essen Diver DXT Data Cables
AS2250
Diver DXT data cable, 250m
Usually ships in 3-5 days
$647.00
Van Essen Diver DXT Data Cables
AS2300
Diver DXT data cable, 300m
Usually ships in 3-5 days
$747.00
Diver-Link cellular telemetry system with internal antenna, battery sold separately
Usually ships in 3-5 days
$749.00

The TD-Diver is based on an ingenious and proven concept and is acknowledged as the most reliable instrument for the autonomous measuring and recording of groundwater level and temperature. Its internal memory of 72,000 measurements per parameter provides sufficient capacity to perform nearly one measurement every hour for 8 years. A new backup memory feature enhances data integrity. For each measurement, the Diver registers the date and time, groundwater level, and temperature.

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In The News

Van Essen TD-Diver: Robust Level Logger Ups Data Efficiency

All sorts of applications employ groundwater level loggers. These are typically deployed in piezometers, and log measurements for as long as the project requires. For those environmental professionals looking for a more long-term solution, the new Van Essen TD-Diver groundwater level logger is a solid choice. The new groundwater level logger launched in November 2016 with an eye toward including improvements to make it an even more robust option for groundwater monitoring. Over the years, through customer feedback and other experiences, managers at the company had envisioned quite a list of things to add. Among these, there are a few that environmental pros could really find handy.

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Wildfires have been big news the last couple of years. Australia’s wildfires in 2019 and 2020 made headlines around the world. The American west has had record-breaking burns in recent years, blanketing cities in dangerous amounts of smoke and sending haze across the continent to the east coast. For smoke's clearly apparent effects in the sky, new research finds it changed the ecology of Castle Lake, a freshwater lake in California, in 2018. “There are some studies that have analyzed the effect of human health in respiration with the smoke of wildfire,” said Facundo Scordo, a postdoctoral researcher at the Global Water Center of the University of Nevada—Reno.

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New tech aims to make algal bloom monitoring faster, more dynamic

The fight against harmful algal blooms is getting a bit quicker, nimbler and more precise thanks to new technology that provides a cell-by-cell, colony-by-colony view of bloom make up and toxicity. “Typically a cyanobacteria community is highly variable. Certain species will dominate one week, and then another will dominate the next week or so,” said Dr. Scott Gallager, president of Coastal Ocean Vision, a company that hopes to change the way algal blooms are monitored with their new technology, Continuous Particle Imaging and Classification System (CPICS) and HABStats. The instruments, which measure algal blooms with a combination of imaging and spectroscopy, will provide water quality managers with a new, real-time monitoring tool to keep water safe and accessible.

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