HTC HD-303 Mini Thermo Hygrometer with Dew Point & Wet Bulb Temperature

The HTC HD-303 Mini Thermo Hygrometer is a compact and professional environmental measuring instrument designed to accurately monitor temperature, humidity, dew point, and wet bulb temperature. Equipped with a large backlit LCD, Max/Min recording, and Data Hold function, it provides reliable measurements for HVAC servicing, industrial maintenance, laboratories, and indoor air quality monitoring.

Its lightweight handheld design and fast-response sensor make it an excellent choice for technicians, engineers, facility managers, and environmental professionals requiring accurate climate monitoring in various working environments.

Learn more in our blog:

• Heatwaves in 2026: Why Every Industry Needs Temperature and Humidity Monitoring

Key Features

• Measures temperature and relative humidity
• Dew point and wet bulb temperature calculation
• Large backlit LCD display
• Max/Min value recording
• Data Hold function
• Fast response sensor
• Compact handheld design
• High measurement accuracy
• Easy one-hand operation
• Suitable for professional field use

Applications

• HVAC Inspection
• Industrial Maintenance
• Environmental Monitoring
• Warehouses
• Laboratories
• Clean Rooms
• Pharmaceutical Facilities
• Manufacturing Plants
• Building Inspection
• Indoor Air Quality Testing

Specifications

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