Essentials 2 way thermometer

Great for Keeping an Eye on Temperatures in Two Places at Once! The top display shows the local temperature (in C or F) and the other display shows the temperature being read by the probe. This product really comes into its own when you need to keep an eye on the temperature in 2 places simultaneously. With this unit you can see the temperature of the air inside and outside of your grow room. How the Dual Digital DisplayThermometer Works: This unit is great for monitoring the air environment in your grow-space. The top display gives a constant readout of the temperature as read by the internal sensor inside the unit. The bottom display gives a constant readout of the temperature from it’s external probe sensor. Temperature can be displayed in either Centigrade (Celsius) or Fahrenheit. The device has a memory and can display the maximum and the minimum internal and external temperatures since the unit was last reset. The thermometer itself has a clip-out stand for sitting on a surface and also has a key-hole recess on the back that so it can be hung from a screw. The unit is powered by one AAA battery (supplied)