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What is the technical name for a light intensity meter?

Answer 1

Light Intensity Meter - it doesn't have any particular "special" name.

Certain brand names or descriptions, such as LUX, candela, exposure, lumens, watts, radiometer, or Candlepower, may cause confusion if they mention the specific measurements or units used in a meter.

Light-Meters

Light meters are high-performance, user-friendly devices that can be used as photometers (lux meters), intensity meters (candela), power meters (watts or lumens), curing meters (dose and exposure meters), and flash meters (Xenon or LED strobe lamps).

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Answer 2

Jordan Andrews

A photometer, also known as a luxmeter, is the technical term for a light intensity meter.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.