The HTC-1 Digital Temperature & Humidity Meter is primarily designed for indoor use and generally does not have an official IP (Ingress Protection) rating for water or dust resistance.Important Usage PrecautionsBecause it lacks a protective rating, you should follow these guidelines:Avoid Wet Environments: Exposure to steam, moisture, or touching the device with wet hands can lead to inaccurate readings or damage the sensor.Keep Away from Water: It is not waterproof and should not be used in areas where it might be splashed or submerged.Indoor Application: It is optimized for rooms, offices, greenhouses, and warehouses where conditions are relatively dry.