Temperature & Humidity Controller -40~120C,
0~100%RH 12VDC
Model:XH-M452
User Manual
How to Control the Humidity:
Humidification / dehumidification mode setting method:
1. Set [start humidity]: press and hold the “+” key to start the humidity value flashing, and set the
start humidity value with +/- key.
2. Set [stop Humidity]: press and hold the "-" key to stop the humidity value from flashing. Use the
+/- keys to set the stop humidity value.
How to Control the Temperature:
1. Set start temperature +:
under the normal display state, long press the "+" button for 3 seconds, the start temperature value
flashes, press +/- key to set the value, after 5 seconds without operation, automatically return to the
detection temperature display.
2. Set the stop temperature:
under the normal display state, long press the "-" button for 3 seconds to stop the flashing of the
temperature value. Press the +/- button to set the value.
3. Restore factory settings:
at the same time long press the temperature key and humidity "+" button for 3 seconds, digital
display 888888
Heating/cooling Mode Setting Method:
1. Setting method: start temperature < stop temperature (program automatically determines
operating mode as heating mode).
2. Setting method: start temperature > stop temperature (program automatically determines the
operating mode as cooling mode)
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