The Weather-Proof Temperature & Humidity Sensor (I2C) is a professional-grade environmental sensing module designed for outdoor weather stations, smart agriculture, HVAC, and industrial IoT.

Encased in a multi-layer radiation shield, it ensures accurate measurements by reducing the effect of direct sunlight, reflected heat, and rain. With high-precision sensing, ultra-low power consumption, and a rugged outdoor enclosure, this module delivers highly reliable climate data year-round.

The sensor features a digital I2C interface, making it easy to integrate with microcontrollers such as ESP32, Arduino, STM32, Raspberry Pi, and industrial controllers.

Key Features

• High-accuracy digital humidity & temperature sensing

• All-weather radiation shield enclosure

• I2C digital output (Fast-Mode / Fast-Mode Plus)

• Low power operation — ideal for solar or battery systems

• Stable long-term performance

• Fully functional even in condensing environments

• Built-in heater function for de-fog and moisture clearing

• Industrial-grade reliability
  
  

Technical Specifications

Electrical

• Supply Voltage: 1.8V – 3.6V

• Interface: I2C (address options supported)

• Idle Current: Very low (sub-µA)

• Measurement Time: 1.3–8.3 ms, depending on precision mode

• Output: Digital Temperature + Relative Humidity

Sensing Performance

• Temperature Accuracy: ±0.1°C typical

• Humidity Accuracy: ±1.0% RH typical

• Temperature Range: –40°C to +125°C

• Humidity Range: 0–100% RH

• Long-term Drift:

  • Humidity <0.2% RH/year

  • Temperature <0.03°C/year

Environmental / Mechanical

• Enclosure: Multi-layer white radiation shield

• Dimensions: 108 mm × 105 mm

• Cable length: Included as shown

• Mount Type: Bracket + U-Bolt

Applications

• Agricultural weather monitoring

• Outdoor IoT nodes

• Greenhouse climate control

• Solar-powered weather stations

• Industrial automation

• Smart farming platforms

• Environmental research

• HVAC sensing

• Home weather data logging

Why Radiation Shield?

Your images show a 5-plate radiation shield designed to:

• Reduce heating caused by direct sunlight

• Improve natural airflow around the sensor

• Prevent rain from entering

• Reduce thermal soaking for more accurate temperature readings

This results in significantly improved accuracy for outdoor environments.

What’s Included 

• Weather-proof sensor assembly

• Mounting bracket

• U-bolts, nuts, and washers

• 4-core cable (for VCC, GND, SDA, SCL)

All hardware is included for pole or wall mounting.

Mechanical Dimensions

From your images:

• Diameter: 108 mm

• Height: 105 mm

The rugged ABS multi-plate radiation shield is engineered to improve airflow while protecting the sensing element from UV light, rain, and dust.