Pard – TA62-35 thermal viewer
NETD is the thermal contrast in an image. The measurement value is mK milli-Kelvin, the smaller this unit, the better the sensor will be able to detect the smallest thermal differences in what you are looking at allowing us to have sharp images even in rain and fog. The unit of measurement of the thermal processor used to process the differences in image temperatures is the Micrometer symbol ” μm “, the smaller this value the better the resolution and shape of the image.