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2. Laser rangefinder - Wikipedia

   en.wikipedia.org/wiki/Laser_rangefinder

   Laser rangefinder: Bosch GLM 50 C. Laser rangefinders are also used in several industries like construction, renovation and real estate as alternatives to tape measures, and was first introduced by Leica Geosystems in 1993 in France. To measure a large object like a room with a tape measure, one would need another person to hold the tape at the ...

3. Tape measure - Wikipedia

   en.wikipedia.org/wiki/Tape_measure

   Tape measures are often designed for specific uses or trades. Tapes may have different scales, be made of different materials, and be of different lengths depending on the intended use. Tape measures used in tailoring are called "sewing tape". Originally made from flexible cloth or plastic, fiberglass is now the preferred material due to its ...

4. Hypsometer - Wikipedia

   en.wikipedia.org/wiki/Hypsometer

   A simple scale hypsometer allows the height of a building or tree to be measured by sighting across a ruler to the base and top of the object being measured, when the distance from the object to the observer is known.

5. Infrared thermometer - Wikipedia

   en.wikipedia.org/wiki/Infrared_thermometer

   A non-adjustable thermometer may be used to measure the temperature of a reflective surface by applying a non-reflective paint or tape, with some loss of accuracy. [citation needed] A sensor with an adjustable emissivity setting can also be used to calibrate the sensor for a given surface or to measure the emissivity of a surface.

6. Length measurement - Wikipedia

   en.wikipedia.org/wiki/Length_measurement

   Length measurement, distance measurement, or range measurement (ranging) all refer to the many ways in which length, distance, or range can be measured.The most commonly used approaches are the rulers, followed by transit-time methods and the interferometer methods based upon the speed of light.

7. Optical power meter - Wikipedia

   en.wikipedia.org/wiki/Optical_power_meter

   An optical power meter (OPM) is a device used to measure the power in an optical signal. The term usually refers to a device for testing average power in fiber optic systems. Other general purpose light power measuring devices are usually called radiometers , photometers , laser power meters (can be photodiode sensors or thermopile laser ...