When purchasing a rangefinder, there are several points that need to be considered: measurement range; measurement accuracy; use occasions.
If you only need to measure the distance within a few meters or more than ten meters, it is recommended to use “ultrasonic ranging
The measurement effect of ultrasonic rangefinder is greatly affected by the environment, and its stability and directionality are worse than laser rangefinders, but the price is relatively cheap! Suitable for indoor measurement. The measurement accuracy is CM level. The maximum range is relatively small, about 20 meters Within. This range is sufficient for household use.
If the measurement distance is not long, it is mostly used indoors and requires high accuracy. You can choose a ” laser distance meter”. The laser distance measure is most suitable for indoor use. The measurement accuracy and effect are very good! The accuracy is ±2MM range.
The measuring distance is long and it is mostly used for outdoor use. It is recommended to buy a “telescope laser rangefinder”, which is both a telescope and a rangefinder! With multiple observation magnifications, users only need to use the cross sighting system inside the eyepiece. It can easily aim at the target for distance measurement! Using the transparent infrared laser emitting and receiving that is harmless to the eyes, it can accurately measure the distance to the target. It is compact, light and easy to carry. Accuracy error ±0.5M range.