Voltage: 120 VAC. Wire Type: Dual Wire. Workstation solution kit monitors operator resistance using a dual conductor wrist strap cord to include the operator"s resistance in the test circuit are functioning properly. Resistor bypass warning - if the current limiting resistors are bypassed a yellow light flashes. Dual grounding path - dual conductor system provides redundant ground paths with an effect similar to wearing two wrist straps. This means that your product is not exposed to ESD even if one conductor fails. Workstation monitor also checks its own connection to ground, and the grounding of your work surface. Kit includes: 1 - 3M (724) monitor that operates on 120VAC and comes complete with dual conductor jack, power supply, hardware, certificate of conformance and instructions. 1 - 3M (4720) dual conductor wrist band. 1 - 3M (2370) dual conductor 10" coiled cord. 1 - 3M (8214) 3-laye