SHT21 Temp + Humidity Sensor Module

Features / Specs

• Model: GY-21
• Sensor Chip: Sensirion SHT21
• Operating Voltage Range: 3.3 – 5.0VDC (Onboard 3.3V Regulator)
• Comms Interface: I²C (Up to 400kHz)
• Comms Logic Level: Same as supply voltage (Onboard level-shifter)
• Relative Humidity Measurement Range: 0 – 100%RH
• Relative Humidity Measurement Accuracy (Typical): ±2%RH
• Relative Humidity Measurement Response Time (T63%): 8 seconds
• Temperature Measurement Range: -40 to +125°C
• Temperature Measurement Accuracy (Typical): ±0.3°C
• Temperature Measurement Response Time (T63%): 5 seconds
• Max Operating Current (Only Sensor): 330μA
• Header Pin Pitch: 2.54mm (Breadboard Compatible)

Pin Description

• VIN-> Supply Voltage (3.3 – 5.0VDC)
• GND-> Ground
• SCL-> I²C Serial Clock
• SDA-> I²C Serial Data

Resources

• Sensirion SHT21 Product Page