MF5A-4 Series bead temperature thermistor is made with epoxy resin coating and enamelled insulation lead wire . Its small bead Min.1.1mm enable it fast response.  The enamelled wire have small OD like 0.25mm or 0.3mm and the insulation character makes it specially suitable for narrow installation environment like precision meters . Avaliable from generally precision 1% to surper high precision 0.2% and loose tolerence 5% .