Constant Monitor - Dual Wire P/N: DWMONITOR1 The dual wire SCC DWMONITOR1 resistance style constant monitor uses a solid state DC design to constantly test the connection integrity of the person, the wristband, and the coil cord. The unit also monitors the bench mat connections. This system is fully automatic and activates when a wrist strap is plugged into the remote. It provides a green light for safe condition and a red light and tone for unsafe condition. The low test voltage (5 volts) is compatible with sensitive production operations.