7Semi SHT40 Humidity and Temperature Sensor Probe I2C (Plastic)

The 7Semi SHT40 Humidity and Temperature Sensor Probe (Plastic, I²C Interface) is a high-accuracy digital environmental sensor designed for reliable humidity and temperature measurement in a robust, waterproof housing. Based on the Sensirion SHT40 sensor, part of the advanced SHT4x series, this probe offers superior accuracy, fast response, and long-term stability. It communicates digitally via the I²C interface, providing fully calibrated and linearized output data. Encased in a durable plastic housing, it is ideal for outdoor, industrial, and HVAC monitoring applications where precise and stable environmental sensing is required.

Technical Specifications:

• Sensor IC: SHT40
  
• Measurement Parameters: Relative humidity and temperature
  
• Interface: I²C (Digital communication)
  
• Supply Voltage: 2.4V to 5.5V (typical 3.3V or 5V compatible)
  
• Humidity Measurement Range: 0% RH to 100% RH (non-condensing)
  
• Humidity Accuracy: ±1.8% RH (typical at 25°C, 30%–70% RH)
  
• Temperature Measurement Range: -40°C to +125°C
  
• Temperature Accuracy: ±0.2°C (typical at 25°C)
  
• Response Time:
   – Humidity: <8 seconds (τ63%)
   – Temperature: <2 seconds (τ63%)
  
• I²C Address: 0x44 (default)
  
• Output Resolution: 16-bit (temperature and humidity)
  
• Power Consumption: Ultra-low, suitable for battery-powered systems
  
• Probe Material: High-quality plastic enclosure (IP-rated for moisture resistance)
  
• Cable Length: Approximately 1 meter (varies by version)
  
• Operating Temperature Range: -40°C to +125°C
  
• Connector Type: 4-pin I²C compatible wire termination
  
• Compatibility: 3.3V and 5V logic systems

Features:

Fully calibrated digital temperature and humidity sensor with I²C output
High measurement accuracy and long-term stability
Robust waterproof plastic enclosure for harsh environments
Fast response time and low power consumption
Factory-calibrated sensor eliminates the need for external components
Wide operating voltage range (2.4V–5.5V)
Compact and durable probe design for flexible installation
Compatible with Arduino, ESP32, Raspberry Pi, and STM32 platforms
Stable performance under varying humidity and temperature conditions
Ideal for continuous environmental and climate monitoring

Applications:

• Environmental and climate monitoring systems
  
• HVAC and air-quality control systems
  
• Industrial automation and process monitoring
  
• Agricultural and greenhouse humidity control
  
• Smart home and weather station devices
  
• IoT and embedded sensor networks
  
• Data logging and remote sensing applications
  
• Portable and battery-powered temperature/humidity monitoring systems
  
• Research and educational experiments in environmental science