Key Takeaways
Laser tape measure measures are alternatives to traditionalmetal tape quantity ; they ’re used to calculate length , width and heights of up to about 650 animal foot ( 198 meters ) . They ’re generally consider precise to within an eighth of an inch ( 3 millimeter ) when appraise a aloofness of up to 300 pes ( 91.5 meters ) . optical maser magnetic tape measure are used mainly by contractors , insurance adjusters , architects , flooring professional and other hoi polloi who do a lot of measurement . However , householder can easily use optical maser tape measures around the house , too .
To use a laser tape measure , you lay the gimmick on one goal of what you need to measure , and then get thelaserbeam so that it hits an object at the other ending . If there ’s no wall , pole or anything like that , you could put a quarry at the spot you want to valuate up to . The process is similar to using a conventional tape measure , except you use a laser beam instead of metal tapeline . Once you have the laser at the right blot , press the clit , and the tape measure calculate the length and expose it on its blind . The calculation is done through precision eye and optical maser physics using the phase - shift method , in which a optical maser hits an object and compare its thoughtfulness with the beam post out , or using the time - of - flight of steps method in which the time it take for an optical pulse to reflect back is calculated . Some laser tape measures countenance you measure multiple aloofness and bestow them together mechanically .
optical maser tapeline measure are unremarkably quicker to use than conventional ones , and you avoid the inaccuracy that can be because of a twisted or droop tape measure . Plus , it ’s easier to read a digital presentation of the measurement than to count slight line on a tapeline measure . optical maser tape measures also eliminate the complicatedness of value high-pitched roof and other hard - to - reach space .
