SHT31/SHT41/SHT45 I2C Temperature & Humidity Sensor Module
SHT31/SHT41/SHT45 I2C Temperature & Humidity Sensor Module
SHT31 / SHT41 / SHT45 Digital Temperature & Humidity Sensor Module
Take your environmental monitoring projects to the next level with this high-precision digital temperature and humidity sensor module. Built around Sensirion's industry-leading SHT3X sensor series, this compact I2C module delivers fast, accurate readings across a wide range of operating conditions — ideal for Arduino, Raspberry Pi, ESP32, and other microcontroller platforms.
Key Features
- Wide Humidity Range: Measures from 0% to 100% RH with accuracy as tight as ±1.5% RH (SHT35)
- Wide Temperature Range: Covers −40°C to +125°C with accuracy as tight as ±0.2°C (SHT35)
- I2C Digital Interface: Simple two-wire communication for easy integration into any project
- Wide Operating Voltage: Compatible with 2.4V to 5.5V DC systems — works with both 3.3V and 5V logic
- Compact Form Factor: Ultra-small sensor die (1.25 mm × 1 mm) housed on a ready-to-use breakout module
- Versatile Model Options: Available in SHT30 (±3% RH / ±0.3°C), SHT31 (±2% RH / ±0.3°C), and SHT35 (±1.5% RH / ±0.2°C) variants
- No High-Concern Chemicals: Clean bill of materials — no restricted or high-concern chemicals
Technical Specifications
| Humidity Measurement Range | 0 – 100% RH |
| Humidity Accuracy | SHT30: ±3% RH | SHT31: ±2% RH | SHT35: ±1.5% RH |
| Temperature Range | −40°C to +125°C |
| Temperature Accuracy | SHT30/SHT31: ±0.3°C | SHT35: ±0.2°C |
| Operating Voltage | 2.4 – 5.5V DC |
| Interface | I2C |
| Sensor Die Size | 1.25 mm × 1 mm |
| Condition | New |
| Country of Origin | Made in Mainland China |
What's in the Box
- 1 × GY-SHT3X Digital Temperature & Humidity Sensor Breakout Module
Who Is This For?
This sensor module is perfect for electronics hobbyists, engineers, and makers building weather stations, HVAC monitoring systems, data loggers, smart home devices, greenhouse controllers, and any other project requiring reliable, real-time environmental data. The standard I2C interface and broad voltage compatibility make integration straightforward on virtually any platform.
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Frequently Asked Questions
Q: What is the difference between the SHT30, SHT31, and SHT35 temperature and humidity sensor models?
A: All three are part of Sensirion's SHT3X series with the same I2C interface and voltage range (2.4–5.5V). The SHT30 is the low-cost entry model (±3% RH / ±0.3°C accuracy), the SHT31 is the standard version (±2% RH / ±0.3°C), and the SHT35 is the premium high-accuracy version (±1.5% RH / ±0.2°C). Choose based on the precision your application requires.
Q: Is this I2C sensor module compatible with Arduino, Raspberry Pi, and ESP32?
A: Yes. The module uses a standard I2C interface and operates between 2.4V and 5.5V DC, making it directly compatible with Arduino (5V), Raspberry Pi (3.3V), ESP32/ESP8266 (3.3V), and most other common microcontroller and single-board computer platforms. Many open-source libraries are available for quick integration.
Q: What applications are best suited for this temperature and humidity sensor module?
A: This module excels in weather stations, smart home environmental monitoring, HVAC systems, greenhouse climate control, cold-chain data loggers, air quality monitors, and industrial environmental detection — anywhere accurate, real-time temperature and humidity data is needed.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.