Onset HOBO U20L Water Level Loggers
The Onset HOBO U20L is a low-cost, research-grade water level data logger for continuously measuring water levels and temperature in various underwater environments.
Features
- Available in 4 depth ranges
- No-vent-tube design for easy and reliable deployment
- Durable ceramic pressure sensor withstands freezing
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Onset HOBO U20L features 0.1% measurement accuracy, a polypropylene housing for fresh and saltwater use, and a non-vented design for convenient and hassle-free deployment.
Post-Purchase Add-ons
The Onset HOBO U20L data logger requires either the U-DTW-1 Waterproof Shuttle or the Base-U-4 Base Station for configuration and data offload, HOBOware software (free download).
*NOTE: HOBOware Pro is required when using the U-DTW-1 Waterproof Shuttle.
Applications
- Freshwater
- Saltwater
- Including wells
- Streams
- Lakes
- Wetlands
- Tidal areas
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Researchers like Dylan Friisvall, the water quality technician for the Keweenaw Bay Indian Community (KBIC) Natural Resources Department (NRD) , have dedicated their careers to monitoring pollution and water quality in order to protect resources for the future. “One of the best parts of my job is just being outdoors, it makes my day go by faster because I get to enjoy the fresh air, and help do my part in protecting the environment,” says Friisvall.
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In order to protect these habitats and mitigate any potential harm, hydroelectric dam operators monitor water quality conditions above and below the dam to ensure conditions meet ecosystem needs. Eagle Creek Renewable Energy has several hydroelectric plants positioned throughout Pennsylvania, and each is managed and monitored by a team of professionals. 
 
One of these managers is Craig Goldinger, a regional manager with Eagle Creek Renewable Energy in Western Pennsylvania.
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Environmental monitoring in the Caribbean may be essential, but it has also historically been placed on the back burner. Albert Jones, Instrumentation Officer for the Caribbean Community Climate Change Centre (CCCCC), explains, “Data collection itself is not what is considered one of those sexy activities where you can easily get funding.” 
 
Still, monitoring the water surrounding island nations is necessary to protect residents and the environment. The CCCCC works to establish environmental monitoring networks and systems in the Caribbean. One aspect of Jones’ work centers around data buoy instrumentation and deployment,—equipment that will be used to support Ecoforecasts for Coral Health Monitoring and to provide valuable environmental data to the public.
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