Eti 133 373 type k heavy duty ptfe wire probe eti 133 373 p this heavy duty temperature probe can be used with a wide range of eti portable hand held thermometers and data loggers it offers a fast response of less than 0 5 of a second making it ideal for measuring air temperatures in chill cabinets fridges freezers offices storage areas and similar p eti 133 373 type k heavy duty ptfe wire probe