Table 1. Specifications of IRTs claimed by the manufacturers.

IRT	Spectral range [μm]	Operating range [°C]	NETDa [mK]	Image sensor dimensions [pixels]	Field of viewb: H,V [degrees]	Detector pitch [μm]	Dynamic range [bit]	Data streaming	Accuracy [°C]
IRT-1	7.5–13	-20 –+120	<50 @ 30°C	320 × 240	17, 14	25	14	Ethernet	±2
IRT-2	7–14	-40 –+500	<20 @ 30°C	640 × 512	30, 25	17	14	USB	±1

^a Noise equivalent temperature difference, used to grade camera thermal sensitivity.

^b Field of view is reported in horizontal (H) and vertical (V) directions.