Long range distance sensor

Hi everyone,

I am looking for a long range distance sensor (above 100m) that I can use with an arduino.

Thank you so much in advance for your answers !

Hi _Ghost,

The SF30-C Laser rangefinder can measure distance up to 100 meters:

https://www.robotshop.com/en/sf30-c-laser-rangefinder-100m.html (arduino test code can be downloaded here)

Hope this helps.

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rguimond thank you so much for you help.

The SF30-C is very good for my project, but the only problem is that it’s a class 1M laser. Do you know an other which is a class 1 laser ?
Thanks in advance!