The PEL 103 is a low cost, simple to use, one, two (split phase) and three phase power/energy data logger. This product is ideal for electricians, engineers and contractors doing work in the area of building and system monitoring and upgrades, as well as residential and overall energy audits. All vital energy data is easily measured, recorded, and analyzed. Reports can be generated with confidence with minimal configuration time and effort (Standard and Customizable Reports supplied).