Find the center and determine the spread of the contamination. Take a wipe to determine if it is removable. Clean the area as appropriate and record the actions taken to decontaminate the area or object. One last very important note. Never ever leave your probe exposed and unprotected when it is not in immediate use.
Damage can easily occur and repair is costly.
Cradle it and cover the probe face with the end cap. Protect it from hard objects. Handle it and the base with loving care. The electronic Material Safety Data Sheet collection previously stored on the Dean of Research computer network server is no longer available. Accessing public internet sites on the World Wide Web.