What is the temperature accuracy of High Gain Cameras?

• A. 5% or 5°C
• B. 1% or 1°C
• C. ±10% or 10°C
• D. ±2% or 2°C

Answer: (A)

The main idea here is temperature accuracy, which tells you how close the camera’s measured surface temperature is to the actual temperature, after accounts for calibration, emissivity, distance, and environmental factors. For High Gain Cameras, the stated accuracy is typically ±5°C or ±5%, whichever is greater. The choice reflects that standard: at lower temperatures the fixed 5°C bound often dominates, while at higher temperatures the percentage (5%) can become the limiting factor. So reading a target at 100°C could be off by about 5°C, and at very high temps the error grows with the percentage. This aligns with the given answer. Other options imply tighter or looser bounds that don’t match the typical high-gain specification.