Looking for Htu21d Module? HTU21D Temperature and Humidity Sensor Module (HW-220 ) is available at Zbotic with fast shipping across India.
HTU21D Temperature and Humidity Sensor Module (HW-220 )
The HTU21D (HW-220 ) Temperature and Humidity Sensor Module is a high-quality, low-cost, easy-to-use sensor that measures both humidity and temperature with high accuracy. It is suitable for environmental sensing and data logging applications, such as weather stations or humidor control systems. It uses I2C communication protocol, which requires only two data lines to connect to the sensor. The measurement time of this sensor is up to 50 msec.
This breakout board has four pins: VCC, GND, and two I2C data lines. It also has built-in 4.7k pull-up resistors for I2C communications. If you have multiple I2C devices on the same bus, you may need to disable these resistors.
Note:
Full drops of water can damage the sensor. We recommend wrapping the board in Teflon/irrigation tape for extreme conditions where water droplets may find their way into the sensor.
specification-
Power supply (V)
1.5 ~ 3.6
Humidity measure range
0 – 100%RH
Humidity precision(10%RH to 95%RH)
HTU21DA ±2%RH
Max. power consumption (µW)
2.7
Communication
I2C
Measure time
50 msec
Year drift
-0.5%RH/year
Response time
5 sec
Length (mm):
16
Width (mm)
16
Height (mm)
2.5
Weight (gm)
5
Shipping Weight
0.01 kg
Shipping Dimensions
4 × 3 × 1 cm
Package Includes
1 x HTU21D Temperature and Humidity Sensor Module (HW-220 )
HTU21D Temperature and Humidity Sensor Module Overview
The HTU21D (HW-220) Temperature and Humidity Sensor Module is a compact I2C breakout board that measures relative humidity (0–100%RH) and temperature (–40 to +105 °C) with high accuracy. It combines ultra-low power consumption (2.7 µW) with a fast response time (measurement in up to 50 ms), making it ideal for environmental sensing and data logging.
Key Features of HTU21D Temperature and Humidity Sensor Module
Power supply: 1.5 – 3.6 V operation for low-voltage projects
Humidity range: 0–100%RH and temperature range: –40 °C to +105 °C
Ultra-low power consumption: just 2.7 µW
I2C communication with built-in 4.7 kΩ pull-up resistors on SDA and SCL
Fast measurement cycle: data ready in up to 50 ms
Genuine HTU21D sensor module and fast shipping from Zbotic
Applications and Use Cases
Weather station humidity and temperature monitoring
Greenhouse climate control and data logging
Server room or data center environmental monitoring
Home humidor humidity maintenance
HVAC system feedback and automation
How to Use HTU21D Temperature and Humidity Sensor Module
Connect VCC to a 1.5–3.6 V supply (3.3 V recommended), GND to ground, and wire SDA/SCL to the microcontroller’s I2C pins. With built-in 4.7 kΩ pull-up resistors, you can immediately communicate over I2C: initialize the bus, send a humidity or temperature measurement command, wait up to 50 ms, and read the results directly from the sensor.
Why Buy from Zbotic?
Genuine Products: All items sourced from authorized distributors
Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
Free Shipping: Free delivery on qualifying orders
COD Available: Cash on Delivery, UPI, cards, net banking
Technical Support: Expert help for setup and troubleshooting
Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
How do I wire the HTU21D sensor to my microcontroller?
Connect VCC to a stable 1.5–3.6 V supply (3.3 V recommended), GND to ground, SDA to the I2C data line, and SCL to the I2C clock line. The onboard 4.7 kΩ pull-up resistors allow direct connection to a compatible 3.3 V I2C bus.
What measurement accuracy can I expect?
The HTU21D delivers high-precision humidity readings across 0–100%RH and temperature readings from –40 °C to +105 °C, with typical response times under 50 ms, ensuring reliable environmental monitoring.
Can I use the HTU21D module with a 5 V microcontroller?
This module operates at up to 3.6 V logic levels. To interface with a 5 V microcontroller, use a level shifter or an I2C voltage translator to protect the sensor and maintain reliable communication.
The HTU21D Temperature and Humidity Sensor Module (HW-220 ) is a versatile temperature & humidity sensor used across a wide range of applications including weather stations, greenhouse monitoring, HVAC systems, cold chain logistics, and server room monitoring.
Common use cases:
Building a home weather station with Arduino
Monitoring greenhouse conditions via IoT
Alerting when server room temperature exceeds threshold
This product is ideal for IoT developers, agricultural engineers, and home automation enthusiasts.
Technical Tip: DHT22 offers better accuracy than DHT11. For precision applications, use SHT31 or BME280. Ensure adequate ventilation around the sensor.
Shipping & Delivery
Free shipping on orders above ₹999 across India
Dispatched within 1-3 business days
Expected delivery: 3-7 business days depending on location
Secure packaging to ensure safe transit of electronic components
Weight
0.00325 kg
Dimensions
4 × 3 × 1 cm
15 Days Warranty
Please note that this item is only covered by a standard supplier warranty against manufacturing defects for a period of 15days from the time of delivery. It is important to understand that only manufacturing defects are covered under this warranty, and any other issues will not be considered for reimbursement or replacement. We strongly advise inspecting the product upon delivery to ensure it meets your expectations. In case of any manufacturing defects, we guarantee reimbursement or replacement.
What voids warranty:
If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.
Girish Choudhury (verified owner) –
Excellent HTU21D Temperature and Humidity Sensor! Readings are accurate and consistent. Perfect for my project.
Kavya Trivedi (verified owner) –
Bought this HTU21D Temperature and Humidity Sensor for my college project. Accurate readings, easy to code. Very happy!
Atharv Panchal (verified owner) –
Excellent HTU21D Temperature and Humidity Sensor! Readings are accurate and consistent. Perfect for my project.
Jatin Sethi (verified owner) –
Excellent HTU21D Temperature and Humidity Sensor! Readings are accurate and consistent. Perfect for my project.
Kapil Chatterjee (verified owner) –
Excellent sensitivity and range on this HTU21D Temperature and Humidity Sensor. Works better than I expected.
Naveen Bhatt (verified owner) –
This HTU21D Temperature and Humidity Sensor is a must-have for sensor projects. Plug and play with Arduino.
Rishabh Srivastava (verified owner) –
Nice HTU21D Temperature and Humidity Sensor. Readings are mostly accurate. Good enough for my hobby project.
Aanya Arora (verified owner) –
This HTU21D Temperature and Humidity Sensor is a must-have for sensor projects. Plug and play with Arduino.
Aisha Rawat (verified owner) –
Great HTU21D Temperature and Humidity Sensor. Using it in my smart agriculture system. Reliable measurements every time.
Uday Mittal –
Perfect for my weather station. This HTU21D Temperature and Humidity Sensor gives consistent readings day and night.
Sahil Dhawan (verified owner) –
This HTU21D Temperature and Humidity Sensor is excellent for the price. My data logging project is working perfectly now.
Urmi Parekh –
Outstanding accuracy from this HTU21D Temperature and Humidity Sensor. Compared with a professional instrument, readings match closely.
Gauri Arora (verified owner) –
Great quality HTU21D Temperature and Humidity Sensor. Calibrated it easily and the accuracy is impressive.
Akshat Srivastava (verified owner) –
Excellent sensitivity and range on this HTU21D Temperature and Humidity Sensor. Works better than I expected.
Darshan Verma (verified owner) –
Excellent sensitivity and range on this HTU21D Temperature and Humidity Sensor. Works better than I expected.
Tejas Pillai (verified owner) –
Pretty good HTU21D Temperature and Humidity Sensor. Documentation could be better but the sensor itself is solid.
Jatin Mehta (verified owner) –
This HTU21D Temperature and Humidity Sensor is excellent for the price. My data logging project is working perfectly now.
Prashant Sethi –
Average HTU21D Temperature and Humidity Sensor. Readings fluctuate a bit. Works for rough measurements.
Riya Vohra (verified owner) –
Good quality HTU21D Temperature and Humidity Sensor. Some variation in readings but within acceptable range.
Saurabh Dhillon (verified owner) –
Excellent HTU21D Temperature and Humidity Sensor! Readings are accurate and consistent. Perfect for my project.
Eshan Jain (verified owner) –
Perfect for my weather station. This HTU21D Temperature and Humidity Sensor gives consistent readings day and night.
Tanvi Bhatt (verified owner) –
Love this HTU21D Temperature and Humidity Sensor. Response time is fast and readings are stable.
Sunil Parekh (verified owner) –
Outstanding accuracy from this HTU21D Temperature and Humidity Sensor. Compared with a professional instrument, readings match closely.
Hemant Das (verified owner) –
Perfect HTU21D Temperature and Humidity Sensor for my automation project. Integrates seamlessly with my microcontroller.
Pranav Mukherjee –
Good HTU21D Temperature and Humidity Sensor. Works as described. Calibration needed some patience but results are good.
Prashant Goyal –
This HTU21D Temperature and Humidity Sensor is excellent for the price. My data logging project is working perfectly now.
Parth Bajaj (verified owner) –
This HTU21D Temperature and Humidity Sensor is a must-have for sensor projects. Plug and play with Arduino.
Tushar Bhandari (verified owner) –
Love this HTU21D Temperature and Humidity Sensor. Response time is fast and readings are stable.