Heliotronics offers the SunLoggerR™ residential data acquisition system. Extremely low cost electronics have allowed us to set a new price point for revenue grade residential monitoring.
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The system uses a Focus meter which meets ANSI C 12.2 Accuracy class 0.5. The SunLoggerR™ logger has sufficient memory to cache at least 20 years of operational data. Even when the cache is cleared, the data is retained so that there is a record of the system performance in nonvolatile memory. Data is also fed to Heliotronics enterprise servers.
Read the technical specs here.