The fog near the rangefinder would reflect the laser back to the device,
which cause the device to give a reading on the distance to fog. The fog
mode allows the product to filter out the influence of fog in close range
(d1=30m) and thus measure with improved accuracy.
2. LCD display:
Note: The range finder would take two measurements of distance, d1 and
d2. To get the average speed of a moving object, divide the distance
traveled (d2-d1) by the time taken to travel thedistance (t).
2. LCD display
Aim at target object and short press power button. Then, the distance value
will be displayed on lens.
D. Speed mode
1. Working Principle
EN-6
v=(d2-d1)/t