Van Essen TD-Diver Water Level Loggers
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)
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | DI801 | TD-Diver water level & temperature logger, 10m range | $575.00 | In Stock | ||
 | DI802 | TD-Diver water level & temperature logger, 20m range | $575.00 | In Stock | ||
 | DI805 | TD-Diver water level & temperature logger, 50m range | $575.00 | Usually ships in 3-5 days | ||
 | DI810 | TD-Diver water level & temperature logger, 100m range | $575.00 | Usually ships in 3-5 days | ||
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | DI800 | Baro-Diver pressure & temperature logger, 1.5m range | $450.00 | Usually ships in 3-5 days | ||
 | AS330 | Diver interface unit, USB | $205.00 | Usually ships in 3-5 days | ||
 | AS327 | Diver data cable interface unit for AS6xxx Diver Data Cables, USB | $200.00 | In Stock | ||
 | AS346 | Diver smart interface cable for AS2xxx Diver Data Cables, USB | $215.00 | Usually ships in 3-5 days | ||
 | DM421 | Diver-Mate data download unit | $250.00 | Usually ships in 3-5 days | ||
 | AS379 | Diver-SDI interface box, SDI-12 | $300.00 | Usually ships in 3-5 days | ||
 | AS339 | Diver-MOD interface box, RS-485 Modbus RTU | $300.00 | Usually ships in 3-5 days | ||
 | AS401 | Diver-DXT radio transmitter with barometric pressure sensor | $450.00 | Usually ships in 3-5 days | ||
 | AS345 | Diver-Gate(M) radio receiver | $680.00 | Usually ships in 3-5 days | ||
 | AS2001 | Diver DXT data cable, 1m | $149.00 | Usually ships in 3-5 days | ||
 | AS2002 | Diver DXT data cable, 2m | $151.00 | Usually ships in 3-5 days | ||
 | AS2003 | Diver DXT data cable, 3m | $153.00 | Usually ships in 3-5 days | ||
 | AS2004 | Diver DXT data cable, 4m | $155.00 | Usually ships in 3-5 days | ||
 | AS2005 | Diver DXT data cable, 5m | $157.00 | Usually ships in 3-5 days | ||
 | AS2007 | Diver DXT data cable, 7m | $161.00 | Usually ships in 3-5 days | ||
 | AS2010 | Diver DXT data cable, 10m | $167.00 | Usually ships in 3-5 days | ||
 | AS2015 | Diver DXT data cable, 15m | $177.00 | Usually ships in 3-5 days | ||
 | AS2020 | Diver DXT data cable, 20m | $187.00 | Usually ships in 3-5 days | ||
 | AS2030 | Diver DXT data cable, 30m | $207.00 | Usually ships in 3-5 days | ||
 | AS2040 | Diver DXT data cable, 40m | $227.00 | Usually ships in 3-5 days | ||
 | AS2050 | Diver DXT data cable, 50m | $247.00 | Usually ships in 3-5 days | ||
 | AS2060 | Diver DXT data cable, 60m | $267.00 | Usually ships in 3-5 days | ||
 | AS2080 | Diver DXT data cable, 80m | $307.00 | Usually ships in 3-5 days | ||
 | AS2100 | Diver DXT data cable, 100m | $347.00 | Usually ships in 3-5 days | ||
 | AS2150 | Diver DXT data cable, 150m | $447.00 | Usually ships in 3-5 days | ||
 | AS2200 | Diver DXT data cable, 200m | $547.00 | Usually ships in 3-5 days | ||
 | AS2250 | Diver DXT data cable, 250m | $647.00 | Usually ships in 3-5 days | ||
 | AS2300 | Diver DXT data cable, 300m | $747.00 | Usually ships in 3-5 days | ||
 | 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.
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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Wildfire smoke alters a lake's ecology from the top to the bottom of the food chain
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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