WILLHI WH1436A Temperature Controller 110V Digital Thermostat Switch Sous Vide Controller NTC 10K Sensor Improved Version WE'VE IMPROVED THE CONTROLLER: simplified operation, larger power, wider control range, standard U.S. outlet, enhanced waterproof sensor probe. Get the new version right now. KEEP TEMP IN DESIRED RANGE: Turn on your device at a set degree and turn it off at another set degree. The difference of the 2 degrees can be minimum 0.1 and maximum 288. HEATING OR REFRIGERATION WORKING MODE: Switch between heating mode and refrigeration mode according to the device you plug into the controller . MAX LOAD: 1100W at 110V. Outlet not compatible with 2 hot lines 220V plug (Celsius or Fahrenheit Read-out). WIDE RANGE OF USES: seedling heat mat, home brewing, aquarium, pet breeding, incubation, BBQ, fermentation, accelerating germination, electric radiator, electric oven, etc . Total Outlet: 1