S711B is a front panel innovative instrument for measurement and recordings of the electrical parameters. It is particularly suitable for consumption analysis and control, with an excellent quality/price ratio. The wide display gives the user easy access to all informations. Unlike the Energy Plus versions, S711B has 1 MB data memory for recordings where it can record only the average values for active & reactive powers. S711B has no harmonics calculations. The instrument can communicate through the RS485 serial port by ModBUS RTU/ASCII protocol.