SPECIFICATIONS Accuracy: RTD: ±0.1% @ 0°C, alpha 385; thermistor: ±0.2°C interchangeability @ 77°F (0°C). Operating Temperature: -40 to 250°F (-40 to 125°C). Probe Diameter: 3/8" (9 mm). Probe Length: 2 ft (3.6 m). Probe Material: Bendable aluminum. Enclosure: Painted steel NEMA 4 (IP65).