Raws li lub npe qhia, laser rangefinders ua haujlwm nrog lasers ua cov khoom tseem ceeb ua haujlwm. Tam sim no, cov ntaub ntawv ua hauj lwm ntawm cov handheld laser rangefinders ntawm kev ua lag luam feem ntau suav nrog cov hauv qab no: semiconductor lasers nrog ua haujlwm wavelengths ntawm 905 nanometers thiab 1540 nanometers, thiab YAG lasers nrog ua hauj lwm wavelengths ntawm 1064 nanometers. Lub wavelength ntawm 1064 nanometers yog teeb meem rau tib neeg cov tawv nqaij thiab ob lub qhov muag, tshwj xeeb tshaj yog yog hais tias lub qhov muag raug yuam kev ntawm lub laser ntawm 1064 nanometers, kev puas tsuaj rau lub qhov muag tej zaum yuav mus tas li. Yog li ntawd, nyob rau hauv txawv teb chaws, lub 1064-nanometer laser yog kiag li banned nyob rau hauv lub handheld laser rangefinder. Hauv Suav teb, qee cov tuam ntxhab kuj tsim 1064-nanometer laser rangefinders. Rau 905nm thiab 1540nm laser rangefinders, peb hu lawv" nyab xeeb". Rau 1064 nm laser rangefinder, peb hu nws" tsis zoo" vim nws muaj peev xwm ua mob rau tib neeg lub cev.
