EarthWise

We're participating in a solar energy performance monitoring project, which is being sponsored by SRP (Salt River Project - our power company). SRP is monitoring five solar photovoltaic systems over the course of six months to determine performance. Actually, it's the ASU Photovoltaic Testing Laboratory that will be doing the monitoring. They also did the installation of the testing equipment: a solar irradiation sensor, a current sensor, and two data loggers.
On the right are the data loggers. Yes, the product name is "Hobo" (the same company also makes the "StowAway" - nice to see they're keeping with a theme). The Hobo on the left logs the output current, and the Hobo on the right logs the irradiance and input current.