Van Essen Micro-Diver Water Level Loggers
The Van Essen Micro-Diver is designed to measure water pressure and temperature autonomously after being programmed to suit user needs.
Features
- Compact size: 18mm diameter x 88mm length
- Stores 48,000 records of time, pressure and temperature
- Pre-programmed and user defined pumping tests
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Van Essen Micro-Diver is the smallest Diver capable of accurately recording groundwater levels and temperature. The Micro-Diver is specifically designed for monitoring wells or drive-points too small to accommodate larger dataloggers. In addition to its compact size, the Micro-Diver’s memory capacity can store up to 48,000 measurements per parameter - almost one measurement every ten minutes for an entire year.
Compact Pressure Sensor
The Van Essen Micro-Diver is the smallest Diver with a diameter of 18 mm and a stainless steel (316 L) casing. The Micro-Diver is suitable for pipes with a diameter of at least 20 mm (0.787 in). The Diver consists of a pressure sensor, a temperature sensor and memory for storing measurements and a battery. The Diver is an autonomous datalogger that can be programmed by the user. The Diver has a completely sealed enclosure. The communication between Divers and Laptops/field devices is based on optical communication.
In The News
Van Essen Diver Loggers Join Fondriest Product Lineup
New to Fondriest Environmental’s product portfolio are the Van Essen Instruments Diver loggers, which are ideal for monitoring groundwater and surface water in a variety of applications. See below for a short description of each new addition. 
 
 Van Essen CTD-Diver Water Level & Conductivity Logger 
 
If you need to monitor groundwater levels and saltwater intrusion, injected wastewater, or contamination from chemical discharges and landfill sites, the CTD-Diver is a good choice. It features a rugged, corrosion-proof ceramic housing and is equipped with a four-electrode conductivity sensor to measure electrical conductivity from 0 to 120 mS/cm. There are two options for measuring conductivity: true or specific conductivity at 25 degrees Celsius.
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The Lufft WS800 Multi-Parameter Weather Station measures a full suite of atmospheric parameters that provides all-encompassing data on the local environment, including a one-of-a-kind lightning detector. This compact, cost-effective sensor simultaneously measures air temperature, humidity, pressure, precipitation, solar radiation, lightning, and wind with an integrated electronic compass. An internal fan and heater reduce the effects of external influences for accurate measurements during long-term deployments. The sensor can be easily mounted on a 2-inch diameter pipe above any local obstructions with the included bracket mount, U-bolts, and 10-meter cable. 
 
 Settings for the unit can be adjusted using the latest UMB-ConfigTool.
Read MoreSmall-Scale Monitoring for Large-Scale Impacts: Building Storm Resilience in the Newfound Lake Region
Monitoring Newfound Lake's tributaries allows the NLRA to better understand how these systems are changing and helps to quantify the impact that development is having on water quality in Newfound Lake. (Credit: NLRA) 
As many resource managers and conservation groups can attest, their work serves both the environment and the surrounding communities. Dynamic and healthy ecosystems can become center points for towns, cities, and entire regions—such is the case in the Newfound Lake Region, located in central New Hampshire. The Newfound Lake Region Association (NLRA) knows just how critical the preservation of the lake and surrounding watershed is for all members of the region.
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