Farm Innovators Thermo Cube Thermostat-Controlled Power Outlet, TC-3 at Tractor Supply Co.
DC 12V Programmable LED Digital Thermostat Regulator Mini Microcomputer Control Thermometer Adjustable Temperature Controller Thermo Switch Module + NTC Sensor - Walmart.com
S2: Spare Thermostat and O-ring for Thermo-Bob 2 (Kawasaki KLR and KLX only) - Watt-Man.com
PS Thermo - ESP32 based thermostat control hub commercial project : r/esp32
Saginomiya ULE Electronic Digital Thermostat | Thermo EYE-U | eBay