Learning Center

Plain-language explanations of the measurements, sensors and numbers behind environmental monitoring.

Polished metal is an infrared mirror. The camera sees the room, the lights and you, not the metal.

How well a surface radiates heat compared with a perfect emitter. Set it wrong and the temperature is wrong.

The smallest temperature difference the camera can distinguish from noise. Lower is better; under 50 mK is good.

The native detector array is the real number. Everything else is upscaling or the visible camera.

Everything warm glows in infrared. The camera has a sensor that sees that glow and a lens that lets it through.

Measures how much light lands on a surface. Useful for workplaces, plants, photography and checking a "bright" room.

Decibels filtered to match human hearing. It is the unit almost every noise limit uses.

A microphone, a weighting filter and a decibel display, built to a standard so readings can be compared.

Vanes for grilles and wind; hot-wires for low speeds and small holes. Each has a blind spot.

Air speed, and from it airflow: the number behind vents, fans, fume hoods and weather.

Same physics, different corrections, references and housings. The gap is usually explainable.

Calibration finds out how wrong an instrument is. Adjustment changes it. They are separate steps.