I have a Wi-Fi Aquarium Temperature Controller ITC-306A and would like to set the min temperature below 20 degrees. The app or the control box has no option to go below 20c
The ITC-306A is available in 2 versions.
In the first version, the temperature range is 20.0°C to 35.0°C / 68.0°F to 95.0°F. It is not possible to set it below 20°C.