BTT SFS V2.0 Smart Filament Sensor 3d Printing Module for Mastering the Filament State

Budget-friendly and works like a charm

I picked this up to replace the filament sensor on my Creality K1C. Honestly, the outer casing looks pretty "janky," but don't let that fool you—it functions quite well. Just a heads-up on the setup: the sensor status is inverted compared to the original, so a configuration tweak is necessary. Also, keep in mind that it requires its own power supply. So far, it’s working flawlessly. If they could add a feature to detect jams or nozzle clogs in the future, this would be the ultimate upgrade.

excellent customer service

Had a problem with the delivery company sending it to the wrong address. The customer service here was very helpful and quick to respond in contacting the company and tracking it down.

Every printer should have one

This is an excellent device that completed my multi material setup (Ender 3 Pro + MMU3 on Klipper with a home grown Klipper extension for the MMU3), now I'm always sure that I'll not have any layer skips. I've been using this encoder sensor for a month now and it already saved my very long prints multiple times, I love it. Two weeks after I got this I bought a second one for my Sovol SV08. Incredible little sensor that needs to be a part of every printer.