The M452 Temperature Humidity Thermometer And Hygrometer Controller Module Digital Display. It has a very High Accuracy Dual Output Automatic Constant Temperature And Humidity Control Board.

Humidity Control

1. Set to start humidity: long-press the + key, start the humidity value flashing, set by + / – key launch humidity value
2. Set stop humidity: long press – to stop humidity value, set by + / – key to stop the humidity value

Temperature Control

1. Setting the temperature +: Normal display mode, long-press the + key for 3 seconds, start temperature numerical flashing, press the + / – key setting values, the wrong operation after 5 seconds, automatically return to detect temperature display
2. Setting the temperature – :Normal display mode, long press – button for 3 seconds, stop numerical flashing temperature, press the + / – key set value
3. Restore the factory Settings: At the same time long press temperature, and humidity + key for 3 seconds, digital display, 888, 888
4. Setting the start temperature: Long press the + key, start the flashing temperature, set start temperature by + / – key
5. Setting Stop temperature: long press – button, stop flashing temperature, set stop temperature by + / – key

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Package Includes:

1 x M452 Temperature Humidity Thermometer And Hygrometer Controller Module