We do NOT suggest letting the screen or controller being in temperatures below 40F. Condensation (and high humidity) can build inside and damage the electronics. This is especially bad for the touchscreen. LCD screens are filled with liquid crystal which can freeze. If your machine will be in an environment with temperatures below this, we HIGHLY suggest changing the environment it will be in. The best way is to keep the building it is in heated. If that’s not possible, Disconnect all wires/power cords to the touch screen and controller and bring them inside to a warm environment when not in use and bring them back when in use.