The CRVW3 is a self-contained, low-cost, three-channel vibrating-wire data logger. It is designed to be an independent data logger, or a component of your larger radio-linked data acquisition network when it is configured with available wireless communication options. The CRVW3 arrives factory integrated with a power supply and a weatherproof enclosure. The VSPECT technology is protected under U.S. Patent No. 7,779,690.