We are offering nippen model eam 34 34l is highly copact kit used for energy audit, power distribution boards, q.c. Testing labs, control panels, plant maintenance, studying energy exchange points, building management system, power management, data logging.Features: 1 phase and 3 phase measurements.true rms measurements.clamp on cts for measurement without breaking circuits.proper indentification of all terminals and clamp on cts.programmable ctr & ptr.red led display that is visible even at distance.software support for energy audit.rs 485 rs 232 serial port for interfacing with pc.printer output (optional)