0.05°C Thermal Sensitivity: Compare NETD Conditions

A 0.05°C temperature difference equals 50mK, but a useful sensitivity comparison also needs the metric and test conditions. The current P20 Pro thermal graphic publishes NETD ≤50mK. This manufacturer entry is not a ±0.05°C temperature-accuracy guarantee.

Compare the same quantity

Confirm that each supplier is reporting NETD rather than a display increment or measurement error limit. FLIR describes NETD as a signal-to-noise measure of thermal sensitivity. Avoid ranking devices by numbers that describe different properties.

Ask for the conditions behind the value

• The evaluated camera configuration and lens.
• The target temperature and relevant camera settings.
• The test method and the supporting module or system report.
• Whether the figure applies to the delivered assembly rather than a different configuration.

Use a low-contrast task to assess usefulness

Ask the supplier to show the temperature differences your inspection must reveal, using a representative target and background. Keep the original output and note the conditions. A colourful palette or a high-contrast demonstration scene does not replace a sensitivity report.

Keep accuracy evidence separate

If a purchase also requires a defined temperature error limit, request that specification and its conditions independently. The accuracy-evidence guide covers that separate question.

Sources and limits

P20 Pro product specifications; FLIR: detector sensitivity. This article reports no original NETD, accuracy or clinical validation test.