The Manitowoc 15209 Ice Machine Ice Thickness Probe with Washer monitors ice formation in compatible commercial ice machines to regulate the ice-making cycle. The probe detects the thickness of the ice as it forms on the evaporator and signals the control system when the desired thickness is reached, allowing the unit to transition to the harvest cycle. Supplied with a washer for prop... https://partsfe.com/15209-manitowoc-ice-thickness-probe-wwasher