The Rectorseal SS610E Multi-voltage condensate overflow monitor is a device that is used to monitor the overflow of condensate from a multi-voltage electrical system. This monitor is designed to be used with systems that have a voltage range of 120 to 240 volts. The Rectorseal SS610E Multi-voltage condensate overflow monitor is a device that is used to monitor the overflow of condensate from a multi-voltage electrical system. This monitor is designed to be used with systems that have a voltage range of 120 to 240 volts.