Yellowstone Temperature Logger
![Image: Yellowstone Temperature Logger](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/Gray_Lakes_logger_install_001.jpg?itok=l7-CV4CJ)
Detailed Description
Yellowstone Volcano Observatory temperature logger and radio transmitter installed in a weatherproof case under a public boardwalk in Yellowstone National Park. The white cable leads to a temperature sensor in the water under the rocks. The black cable leads to a radio antenna attached to the side of the boardwalk.
Sources/Usage
Public Domain.