Creality CR Touch Auto Bed Leveling Sensor Kit, Multi-Point Detection, High Precision, Easy to Install, Applicable Ender 3 V2, 3, 3S, 3Pro, 3 Max, Ender-5, 5S, 5Pro, CR-10, and More FDM 3D Printers

Once you install this your dreams of auto level will be fulfilled. As nightmares. I've had more trouble getting this thing to work than I did just leveling on my own. It has a couple of major issues.Once installed you must set a Z offset between where the probe detects the bed and the nozzle. The distance between these two is about 4 cm, so to make sure you're on the same point you must move the carriage over to the same point the probe auto homed to. Then you find the offset using the Z move function, and that function lets you dial in movement to .025 mm movements. Then when you go to enter the offset in bedlevel you set it to nearest 0.1 mm. since a layer is usually .2 this is not nearly sensitive enough of a setting. So then you fine tune with bed leveling."Works best on a level bed" so basically you need to level the bed prior to using auto level... I'll just leave that here.Does a 9 point level, which really isn't enough to get the variations. If you use glass its not bad as those are pretty flat, but the higher end auto level that come with other printers do 16 point reference or higher.All in all I would save the money. There are Gcodes in marlin that let you set a mesh level manually instead, I think you could get the same effect and better executed using that. I'll likely uninstall this item and go back to manual leveling.

It looks good, nicely packaged. Following the instructions, I formatted the micro SD card and downloaded the firmware file from the address in the instructions. Inserted it into the Ender 3 Pro and turned on. The attached photo shows what that did to my machine. Total gibberish on the display. i then spent a couple of days trying to get my screen back. Creality support has still not gotten back to me.I finally installed a new copy of Marlin firmware and now have my screen back. if it seems too good to be true, it likely is. COMPLETE FAIL

I was chasing my tail trying to level the bed on my Ender 3 pro. The bed had a high spot in center and low on all four corners. The best I could do was place post-a-notes between the bed and the removable flex bed and it was okay but I was constantly tweeking it.After watching some videos on the CR Touch and the BL Touch I decided on the CR Touch. It turned out that it isn't the easiest thing to install. The instructions that come with it leave a lot to be desired and the youtube videos are better but tend to leave out a couple of steps. After a couple of times that I was about to give up, JOY JOY it worked. I have printed about a dozen prints both large and small and every one is perfect. No more not sticking to the bed or so stuck it won't come off. I would like to see the Ender Pro come standard with the CR Touch preinstalled or at least an option. 3d printing is much more fun now.

Update - All the necessary parts were included, my error.Would be great if you mentioned that a pin adaptor {not included} is needed to install on a standard Ender 3.

I was to start by saying that this install was not for people that are not comfortable with electronics. with that said it took about an hour to install only because I have a VoxLab Aquila printer looks like the ender 3. I found that the YouTube was a great reference for the wiring, I did have to buy a bracket to mount it but again I have a different printer. once installed and farmwear updated i took my prints from a 45 - 50% success rate to about a 90-95%. the small changes it makes as you print makes all the differences.