S1 Bundle: Is the ChefsTemp ProTemp S1 compatible with Masterbuilt Gravity Series smokers?

Yes. ChefsTemp offers a ProTemp S1 monitoring bundle for Masterbuilt Gravity Series smokers. The bundle page lists the Gravity Series 600, 800, 1050, 1150, and XT. The listed bundle includes S1, a wireless meat probe, and a probe charger. S1 adds temperature monitoring; it does not replace the grill's built-in controller or fan. Check the installation for your exact model before ordering, as mounting requirements vary.