The E-Mon D-Mon ECA-2 External Contact Adapter allows the user to monitor the utility electric meter with E-Mon Energy AMR software. A pulse contact provided by the utility meter sends energy information via the ECA-2 to the IDR interval data recorder. E-Mon Energy software reads the kilowatt hour and demand data from the IDR for the purpose of energy conservation, demand side management programs, utility rebate incentives, cost analysis or monthly comparisons of usage. The ECA-2 can also be used to integrate water, gas and BTU meters equipped with contact (pulse) output. Note: ECA-2 is not required when using IDR-ST units.