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▪ Do not place the controller in an environment where the ambient temperature is too high (above 60 ° C) or too low
(below -20 ° C).
▪ Keep it out of reach of children as much as possible to prevent injury from collision and fall.
▪ Do not drop the controller or rub it against hard objects during use, otherwise it may cause damage to the
controller's external light and damage.
▪ Do not place the controller in a dusty environment to avoid dust accumulation in the controller and affect the
measurement accuracy.
▪ When using the controller, do not cover or block the vent hole with any object to avoid affecting the air quality
monitoring.
▪ Do not disassemble, repair or modify the controller without permission.
Precautions for use
