Water Sensors Defaulting SMC Water Sensor Clint Wolford December 13, 2013 No Comments To default the sensor, remove the battery. While pressingthe black Tamper/Default button located near the battery carrier and the wire contacts, insert the battery. Then release the button. ← SMC Water Sensor (SMCWA10-Z) Mobile App → Leave a ReplyYour email address will not be published. Required fields are marked *Comment * Name Email Website