Comparative Thermal Analysis of Different Cool Roof Materials for Minimizing Building Energy Consumption

Table 5

Specifications of the external contact probe.

Contact measurements
K-type thermocouple input temperature range	−270°C to 1372°C (−454°F to 2501°F)
K-type thermocouple input accuracy; (with ambient temperature 23°C ± 2°C)	<−40°C: ± (1°C + 0.2°/1°C)
	≥−40°C: ±1% or 1°C, whichever is greater
	<−40°F: ± (2°F + 0.2°/1°F)
	≥−40°F: ±1% or 2°F, whichever is greater
K-type thermocouple	0.1°C/0.1°F
K-type thermocouple repeatability	±0.5% of reading or ±0.5°C (±1°F), whichever is greater