The Model 20-CTR is designed to monitor the whole house load, inverter output, generator output, etc. The meter consists of a easy to install current transducer (CT) (2 for 2 phase 240 vac applications), a base module and an attractive oak trimmed panel mount display. The remote display can be mounted up to several hundred feet from the base module using inexpensive CAT5 LAN cable. The meter features both a "permanent" and resettable kw-hr and cost display, as well as watts, peak watts and cost information. The meter can be configured for 120 or 120/240 operation and will monitor up to 9999 watts.