These fully enclosed ultra-magnetic surface thermometers are the toughest yet. The Models 550F and 555F are built using quality materials using the strongest magnet ever designed for a surface thermometer. The surface thermometers were designed specifically for the rail industry for checking rail temperatures prior to welding for determining gap size. The thermometers can be stored in your pocket or a belt pouch. Part number 350.9

PTC® Surface Thermometers
Made in the
USA

PTC Metrology is accredited by A2LA to ISO/IEC 17025, ANSI/NCSL Z540-1-01 for NIST traceable certifications. Our calibration lab has several choices for surface thermometer calibrations from basic NIST traceable certification to customer selected logged critical temperature points which include as received and as returned data; a statement of uncertainty; laboratory conditions and information on the primary standards. For complete temperature certification services please click on the link. CERTIFICATION SERVICES Surface Thermometers