Attributes . +/-3.0° F (1.1° C) or +/-0.4% reading above 212° F(100° C); +/-3.6° F (2.2° C) or 2% of reading between -58 to 211° F (-50 to 99° C); +/-7.2° F (4° C) or +/-4% of reading between -60 to -238 (-51 to -150° C), whichever is greater . Names