Guide to buying a rangefinder

Guide to buying a rangefinder
Several points to consider when purchasing a rangefinder:
1. Measuring range
2. Measurement accuracy
3. Where to use
It is basically divided into the following situations:
a) Only need to measure the distance within a few meters or more than ten meters, and the accuracy requirements are not high.
*Recommendation-"Ultrasonic Rangefinder" can be used.
*Remarks——The measurement effect of ultrasonic rangefinder is greatly affected by the environment, and the stability and directionality are worse than that of laser rangefinder, but the price is relatively cheap! Suitable for indoor measurement.
b) The measuring distance is not long, the ambient light is not complicated, and the accuracy is required to reach the millimeter level
*Recommendation-"Phase Laser Rangefinder" can be purchased.
*Remarks——The phase laser rangefinder is most suitable for indoor use, and the measurement accuracy can reach 2 mm or less.
(For example, when the user needs to perform detection in an outdoor environment, due to the influence of ambient light, it is necessary to add a professional laser sight and reflector, and use them in combination to achieve the expected range and effect.)
c) The measurement distance is far, and it is mostly used for outdoor use!
*Recommendation-purchase "telescope type laser rangefinder" (ie: laser rangefinder telescope)
*Features-both a telescope and a rangefinder! With multiple observation magnifications, the user can easily aim at the target for distance measurement by simply using the cross sighting system inside the eyepiece! Using the transparent infrared laser emitting and receiving which is harmless to the eyes, the target distance can be accurately measured, and it is small in size, light and easy to carry!
e) Measure long distance and outdoor measurement
*Recommendation-buy a built-in binoculars, so that you can see more clearly under strong light.
*Remarks-convenient for accurate measurement.
Problems that need to be paid attention to when using the laser rangefinder: The laser rangefinder cannot be aimed at the human eye to measure directly to prevent harm to the human body. At the same time, general laser rangefinders are not waterproof, so you need to pay attention to waterproofing.