The heating plate can be adjusted from 70℉ to 130℉, for precise temperature control This device provides and maintains the optimal temperature for sourdough starter in low-temperature environments, boosting its activity Its gravity-activated heating module with ±10mm adaptive downward pressure, automatically conforming to flat or concave-bottomed fermentation jars.Ensures consistent starter heating for faster, more uniform fermentation. 1-24-Hour Timed--It features convenient 1-24-hour timed shutdown and memory functions. After the device is powered off, it can maintain the last set temperature and automatically recover the next time it is turned on, without the need for repeated settings IPX7 Waterproof --This device can withstand short-term submersion in water, and uses physical buttons to reduce accidental operations Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on. Voltage: AC110V (The printing is different, but it does not affect the use) Color: White Material: plastic Package Contents: 1 * Sourdough Starter Warmer