Cov ntsuas dab tsi yuav tsum tau xav txog thaum yuav lub laser rangefinder
1. Kev ntsuas ntau
2. Kev ntsuas qhov tseeb
3. Lub sijhawm siv
①Yog tias koj xav tau ntsuas qhov kev ncua deb li ntawm kaum tawm meters, thiab qhov tseeb tsis siab, koj tuaj yeem xaiv lub laser rangefinder ntawm tes. Hom ntsuas no ntsuas qhov deb li ntawm 250 meters, qhov ntau me me, thiab qhov tseeb yog li 1 hli.
② Yog tias nws yog qhov ntsuas qhov ntev sab nraum zoov, koj tuaj yeem xaiv lub koob yees duab-hom laser rangefinder, uas yog ob qho tib si lub koob yees duab thiab lub rangefinder. Qhov ntsuas ntsuas yog li ntawm 0 meters txog 3000 meters.
