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
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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
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 DI420 Diver-Mate data download unit
$300.00
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 AS400 Diver-DXT radio transmitter without barometric pressure sensor
$400.00
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

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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Assessing Cumulative Risk From Water Pollutants

New research from scientists at the Environmental Working Group (EWG) shows that an approach that assesses cumulative risk from water contaminants could save lives. EWG senior scientist Tasha Stoiber spoke with EM about how the team developed the innovative new approach . “Our organization has worked extensively on tap water over the years, and an updated version of our tap water database was just released in 2017,” explains Dr. Stoiber. “We've been thinking about new ways to analyze that data.” Right now, the risk from contaminants in water quality is assessed one at a time—but that really doesn't comport with reality.

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Custom ROV Helps Protect Rockfish in Puget Sound

Washington Department of Fish and Wildlife (WDFW ) scientists are using a customized underwater robotic vehicle (remotely operated vehicle or ROV) called the Saab Seaeye Falcon on a critical conservation study of threatened and imperiled rockfish. Dr. Dayv Lowry , a Senior Marine Fish Research Scientist, spoke to EM about using the ROV to facilitate rockfish conservation and recovery in the Puget Sound. “In the Pacific Northwest, the Washington and Oregon coast, several species of Rockfish have been fished for decades, with up- and downswings in abundance,” explains Dr. Lowry. “When fishing pressure decreases, and the stocks start to recover, we have gone back to fishing—the pendulum has swung over the years.

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