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±2% (0-100%RH) IIC Digital humidity and temperature sensor with pin-type
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Humidity probe &sensor

±2% (0-100%RH) IIC Digital humidity and temperature sensor with pin-type

DHT31 humidity and temperature sensor is designed for mass production with high process capability, high signal-to-noise ratio, high reliability and long-term stability. It builds on a new sensor chip which has increased intelligence and improved accuracy specifications of 2 %RH and 0.2°C. Its functionality includes enhanced signal processing, two distinctive and user selectable I2C addresses and communication speeds of up to 1 MHz.Additionally, the wide supply voltage range of 2.15 V to 5.5 V guarantees compatibility with diverse assembly situations.
ModelDHT31
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Relative Humidity Measurement Performance


Measurement Range0 ~ 100 %RH;
Accuracy at 0~90%RH@+25 °C(+77 °F)±2%RH(0%RH…90%RH)
Response time (T63)≤8 s
Long - term drift<0.25%RH/year





Temperature Measurement Performance



Measurement Range-40 ~ +120 °C (-40 ~ 248 °F)
Accuracy at 0 ~ 90 °C(32 ~194 °F)±0.2°C (31.64 ~ 32.36 °F)
Response time (T63)>2 s
Long Term Drift<0.03°C (32.054 °F)/year



Dimensions of Three Different Packaging Methods



FAQ – Frequently Asked Questions


1. Where are your products manufactured?

Our products are proudly designed and manufactured in China, following international quality standards and certified processes.


2. Can you provide OEM/ODM services for international clients?

Yes, we offer customized solutions and private labeling to meet your brand’s needs worldwide.


3. Are your products compliant with international safety and quality standards?

Absolutely. Our products are tested to meet CE, RoHS, and other international certifications.


4. How do you handle shipping and delivery for overseas orders?

We cooperate with major international couriers to ensure fast and reliable delivery to your location.


5. Can I get product samples before placing a large order?

Yes, we provide samples so you can evaluate product quality before committing to bulk orders.


6. What is the typical lead time for production and delivery?

For standard products, we usually ship within 5–7 days after order confirmation. Customized products may take slightly longer.


7. How do you support clients after the purchase?

We offer 24/7 technical support, product guidance, and warranty service to ensure smooth operation.


8. Do you provide support for international clients after purchase?

Yes, we offer remote technical assistance, manuals in English, and prompt solutions to any issues, ensuring smooth use worldwide.


9. How can I place an order if I am located overseas?

You can contact our sales team directly via email or website inquiry. We provide professional guidance throughout the ordering process.


10. Why should I choose your company over other suppliers in China?

We combine over 30 years of manufacturing experience, advanced technology, strict quality control,

and global customer service to deliver reliable, high-quality solutions.


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DHT31.pdf