This is a temperature probe clip I designed/modeled to fit on the Mars 3 or Mars 3 Pro vats in order have the temperature probe sit in the resin. I like to know what the temperature of the resin is, rather than just the enclosure of the printer. You can calibrate your resin printer much better if you know and regulate the resin temperature. The Mars 3 printers have very tight spaces, so this is about the only way you can get a temperature probe to sit in the resin. This clip works really well, at least for me. If size diameter of the end of your temperature probe is different from mine, then this may not work quite as well. I'm using the BN-LINK Digital Heat Mat Thermostat on Amazon, which has a probe diameter of about 3/16" (or about 4.5 mm to 5mm for those not in the US). I don't know if it'll fit on the vats on any other printers, but feel free to try.