Indoor Use: The temperature meter gauge has a range of -30℃ to +50℃, and hygrometer shows the relative humidity gauge from 0% up to 100%, it is ideal for home (baby room, living room, bedroom), school, office, greenhouse, factory, medical, farm, laboratory, computer room, shop, warehouse, etc. Outdoor Use: Not waterproof, do not exceed the temperature range -30℃~50℃.
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