Some points to consider when purchasing a rangefinder:
1. Measurement range.
2. Measurement accuracy.
3. Use occasions.
Basically divided into the following situations:
a. It only needs to measure the distance within a few meters or ten meters, and the accuracy is not high.
Recommendation - "Ultrasonic Rangefinder" is optional. However, due to the low precision and large environmental impact, the ultrasonic range finder has been eliminated in China.
Remarks - The effect of ultrasonic range finder measurement is greatly affected by the environment, stability and directionality are worse than laser range finder, but the price is relatively cheap! Suitable for indoor measurements.
b, the measurement distance is not long, mostly used indoors, high precision requirements!
Recommendation - Optional "Handheld Laser Rangefinder".
c, the measurement distance is far, and it is mostly used for outdoor use!
Advice - purchase "telescope laser range finder". (ie: laser ranging telescope)!
Features - both telescopes and rangefinders! With multiple observation magnifications, the user can easily aim at the target for distance measurement simply by the cross aiming system inside the eyepiece! With the transparent infrared laser emission and reception that is harmless to the eyes, the target distance can be accurately measured, and its size is small, light and easy to carry!