General Tools EMR813 3-channel Wireless Thermometer with Remote, White This 3 channel digital thermometer with remote is ideal for measuring temperatures indoors and out The indoor thermometer comes with a minimum and maximum memory for remembering where the temperature is and where it has been. The thermometer has a programmable temperature alert that will beep when the temperature is met The outdoor thermometer has a Fahrenheit and Celsius switch that allows you to toggle back and forth The temperature gauge unit is CE approved