Elitech Temperature Controller Non-WIFI 2-Stage Outlet Thermostat Heating and Cooling for Aquarium Homebrew Seed Fermenter Greenhouse 220V, STC-1000Pro

Plug and Play - The large LCD screen, simple 3-button function and pre-wired design make it easy to use with Plug and Play.
Double relay - Be able to connect with refrigerator and heater simultaneously, automatic switching between heating and cooling.
Keep ideal temperature - Keep ideal temperature ranges for you all the time, stable and accurate (-40~230°F/-40-110°C),supports ℉⇋℃
Multifunctional - Supports settings including ℃/⋅ temperature calibration, compressor start delay, multiple out-of-limit alarms. Provide an audible, visual and LED alarm when the temperature exceeds the high/low limits or the probe is defective, etc.
Safety and quality - Meets the CE standard. ABS fire retardant housing, large LCD screen display and three-button design make it safer to use and easier to read and adjust