HTC-1 indoor home thermometer and hygrometer HD large screen electronic digital display instrument with alarm clock calendar

The most suitable indoor temperature in summer is 23 ° C to 28 ° C, humidity is 30% RH to 60% RH, winter temperature is 18 ° C to 25 ° C, humidity is 30% RH to 80% RH; most people feel comfortable in this range.

$15.09

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