Check the listing for details. E-MON D-MON E50-208100-R06-SPKIT. Condition: Used. Listed at 899.98 USD. The E-MON D-MON E50-208100-R06-SPKIT is a power monitoring device manufactured by E-mon. This tool is designed for electrical usage monitoring and testing purposes, making it an essential tool for businesses and industrial settings. With its advanced features and reliable brand reputation, this product is ideal for measuring and inspecting electrical systems to ensure efficiency and accuracy.