The CM400 monitors ground integrity of one operator/wrist strap and will signal an audible and visual alarm when conditions for potential ESD damage are met. No calibration required!
The CM400 is grounded through the included power adapter. Plug and play out of the box.
Since the monitor checks for impedance, there are no problems with false alarms as long as the wrist strap maintains contact to the operator’s skin and the coil cord connections are solid.