7Semi SHT45 RH Digital Humidity & Temperature Sensor Breakout with 4Pin Connector

The 7Semi SHT45 RH Digital Humidity & Temperature Sensor Breakout is a high-accuracy environmental sensing module built around the Sensirion SHT45. It delivers fully calibrated and linearized digital humidity and temperature data over an I²C interface. Featuring a compact PCB and a 4-pin connector for easy integration, it is ideal for HVAC applications, smart-home climate systems, data logging, weather stations, and IoT devices requiring precise temperature and humidity measurement.

Technical Specifications:

• Sensor IC: Sensirion SHT45
  
• Measurement Parameters: Relative Humidity and Temperature
  
• Interface: I²C digital communication
  
• Supply Voltage: 1.08V to 3.6V (typical 3.3V)
  
• Humidity Range: 0% to 100% RH
  
• Humidity Accuracy: ±1.0% RH
  
• Temperature Range: –40°C to +125°C
  
• Temperature Accuracy: ±0.1°C
  
• Output Resolution: 16-bit temperature and humidity output
  
• Response Time (Humidity): ~4 seconds
  
• Response Time (Temperature): ~2 seconds
  
• Default I²C Address: 0x44
  
• Output Type: Fully calibrated, digital output
  
• Connector: 4-pin interface for easy wiring

Features:

• High-accuracy digital humidity and temperature sensing
  
• ±1.0% RH and ±0.1°C precision suitable for critical applications
  
• Fully calibrated and linearized digital readings
  
• Low power consumption ideal for battery-powered IoT devices
  
• Fast response time for real-time environmental updates
  
• 4-pin connector simplifies integration into embedded systems
  
• Wide operating range for both humidity and temperature
  
• Compatible with Arduino, ESP32, STM32, Raspberry Pi
  
• Stable long-term performance with minimal drift
  
• Compact and robust design for industrial and consumer applications

Applications:

• HVAC and indoor climate control
  
• Smart-home environmental sensors
  
• Greenhouse and agricultural automation
  
• Weather monitoring and ambient data logging
  
• IoT devices for temperature/humidity tracking
  
• Industrial environmental sensing
  
• Storage and cold-chain monitoring
  
• Server room and warehouse humidity management
  
• Laboratory instrumentation
  
• Air-quality and environmental monitoring systems