Does a cheap laser power meter even work? Is it precise enough to be usable?
In this video, I test the cheapest power meter I have found for sale and compare it to a much more expensive one. I will use lasers of different colors and optical power outputs. Will the cheap one give the same reading as the expensive one? Let's find out!

I bought the laser power meters here (not sponsored or affiliated): https://www.laserpointerstore.....com/products/pocket-
https://www.sanwulasers.com/product/20wlpm

My Patreon-page: https://www.patreon.com/Brainiac75
Laser classes explained: https://youtu.be/dd6656CF1IY
Human eyes sensitivity to colors, calculate laser lumens: https://youtu.be/lWQ66Z-HqcM
Build a beam dump - easy to make: https://youtu.be/rRIlhskMYAM
Did you miss one of my videos?: https://www.youtube.com/user/brainiac75/videos

FULL MUSIC CREDITS
Time codes: 0:01 + 8:37
"Adding the Sun" Kevin MacLeod (incompetech.com)
ISRC: USUAN1900041

Time code: 0:51
"Lightless Dawn" Kevin MacLeod (incompetech.com)
ISRC: USUAN1100655

Time codes: 2:25 + 4:07 + 10:45
"Perspectives" Kevin MacLeod (incompetech.com)
ISRC: USUAN1300027

Time code: 3:01 + 6:51 + 11:26
"Ossuary 6 - Air" by Kevin MacLeod (incompetech.com)
ISRC: USUAN1500048

All music above licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

Time code: 6:23
Mix of two tracks:
1) The Shimmering by fran_ky (freesound.org/s/237363)
Licensed under Creative Commons 0 license
2) "Spacial Harvest" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/
ISRC: USUAN1100653

#LaserPowerMeter #Brainiac75