DFRobot
SHT31 Weather-proof Temperature Humidity Sensor
This is an SHT31 Temperature & Humidity sensor housed in a weather-proof enclosure. The sensor is designed to be waterproof so you can use it safely in outdo...
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This is an SHT31 Temperature & Humidity sensor housed in a weather-proof enclosure. The sensor is designed to be waterproof so you can use it safely in outdoor projects. Please note that although the sensor is waterproof, it is not suggested to submerge it in water. For in-water measurement, the DS18B20 Sensor is highly recommended.
Thanks to Sensirion’s CMOSens® technology, highly integrated capacitive humidity sensing components, and band-gap temperature sensing components, the SHT31 offers high reliability and long-term stability with low power consumption, fast response, and strong anti-interference ability. The sensor supports I2C communication and is compatible with 3.3V/5V controllers like Arduino, micro: bit, ESP32.
SHT31 is the standard version of the SHT3x series. It provides humidity accuracy ± 2%RH@0% RH~100% RH (at 25°C), and temperature accuracy±0.2°C@ 0°C ~90°C (typical).
FEATURES
- Weather-proof
- High precise, internal auto-calibrated, digital output
- Low power consumption, fast response, and strong anti-interference
SPECIFICATION
- Operating Voltage: 3.3~5V
- Operating Current: <1.5mA
- Humidity Detection Range: 0%RH~100%RH
- Humidity Accuracy: ±2%RH@0%RH~100%RH(at 25℃)
- Temperature Detection Range: -40℃~125℃
- Temperature Accuracy: ±0.2℃@0℃~90℃ (Typical)
- Communication: I2C
- Cable Length: about 1m
DOCUMENTS
Jargon buster
Plain-language definitions for the technical terms used above.
- CMOSens
- CMOSens is Sensirion’s integrated sensor technology that combines sensing elements and electronics in one package. It matters because it affects how the sensor measures temperature and humidity and how it is supported by the manufacturer’s libraries and datasheets.
- DS18B20
- The DS18B20 is a common digital temperature sensor, often supplied in a waterproof stainless-steel probe, that sends its readings to a microcontroller over a 1-Wire connection. It is a typical choice for adding temperature data to environmental or water-monitoring projects.
- ESP32
- ESP32 is a family of low-cost microcontroller chips and modules from Espressif with built-in WiFi and Bluetooth. They support programmable firmware and over-the-air updates, and are commonly programmed with toolchains such as the Arduino core and ESP-IDF.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
Find this product in
SHT31 Outdoor Temperature Humidity Sensor CE Certificate
Compliance · 613.4 KB · Click any page to view full size
SHT31 Outdoor Temperature Humidity Sensor RoHS Certificate
Compliance · 651.4 KB · Click any page to view full size
Supplier page — dfrobot.com
Supplier Description · 424.6 KB · Click any page to view full size
SEN0385 sht31 outdoor temperature humidity sensor dimension v1
Mechanical Drawings · 43.5 KB · Click any page to view full size
SEN0385 sht31 outdoor temperature humidity sensor cad v1
CAD Data · 47.0 KB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
Source Code
Open-source libraries, firmware & example projects for this product
f5fc122
almost 4 years ago
· 19 commits
- examples -m-m“last error in library.properties about 4 years ago
- python -m-m“last error in library.properties about 4 years ago
- resources 更改格式 over 4 years ago
- DFRobot_SHT3x.cpp #10 almost 4 years ago
- DFRobot_SHT3x.h Modify questions posed by users over 4 years ago
- keywords.txt first commit over 6 years ago
- library.properties -m-m“last error in library.properties about 4 years ago
- LICENSE 更改格式 over 4 years ago
- README.md net over 4 years ago
- README_CN.md net over 4 years ago
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