DHT 11 Module
DHT 11 Module
DHT11 Temperature & Humidity Sensor Module
Accurately measure ambient temperature and relative humidity with the DHT11 sensor module - a reliable, easy-to-use digital sensor perfect for weather stations, home automation, and IoT projects. Available at The Tech Depot, Bengaluru, with fast shipping and full technical support.
Specifications
| Sensor Type | DHT11 Digital Temperature & Humidity Sensor (Pre-mounted on PCB Module) |
| Operating Voltage | 3.3V - 5.5V DC |
| Humidity Range | 20% - 90% RH (+/-5% RH accuracy) |
| Temperature Range | 0 degreesC - 50 degreesC (+/-2 degreesC accuracy) |
| Resolution | 1% RH / 1 degreesC (8-bit) |
| Output Signal | Single-bus digital signal (proprietary one-wire protocol) |
| Sampling Rate | 1 reading per second (1 Hz) |
| Module Pins | 3 pins - VCC, DATA, GND (on-board pull-up resistor & power indicator LED) |
| Sensing Element | Resistive-type humidity sensor + NTC thermistor |
| Response Time | 6-15 seconds (humidity), 1-2 seconds (temperature) |
| Module Dimensions | Approx. 32 mm x 14 mm x 8 mm |
| Compatibility | Arduino, ESP8266, ESP32, Raspberry Pi, STM32, PIC, and all major microcontrollers |
| Library Support | Adafruit DHT Library, SimpleDHT, DHT.h (Arduino IDE), Adafruit_CircuitPython_DHT (Python) |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Ready-to-Use Module: On-board 4.7kOhm pull-up resistor and power LED - no extra components needed; connect directly to your microcontroller with just 3 wires.
- Simple Digital Interface: Single-wire data protocol requires only one GPIO pin, freeing up I/O for other sensors and peripherals.
- Wide Voltage Compatibility: Operates from 3.3V to 5.5V, making it natively compatible with both 3.3V boards (ESP8266, ESP32, Raspberry Pi) and 5V boards (Arduino Uno, Mega, Nano).
- Low Power Consumption: Draws minimal current during standby and measurement, ideal for battery-powered and solar-powered applications.
- Factory Calibrated: Each sensor is individually calibrated at the factory with calibration coefficients stored in OTP memory - no manual calibration required out of the box.
- Compact PCB Design: Mounting holes and standard 2.54mm pin headers allow easy breadboard prototyping or permanent PCB integration.
- Extensive Library & Community Support: Thousands of tutorials, example codes, and community projects available for Arduino IDE, MicroPython, CircuitPython, and PlatformIO.
- Reliable Long-Term Stability: Proven resistive sensing element offers consistent readings over extended deployment periods with minimal drift.
Why Choose the DHT11 Module from The Tech Depot?
- 100% authentic DHT11 sensors sourced directly from authorized distributors - no clones or counterfeits.
- Every module is inspected and tested before dispatch to ensure proper functionality.
- 1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse; same-day delivery available in Bengaluru.
- Dedicated technical support team to help you with wiring, code, and troubleshooting via email and WhatsApp 24/7.
- Backed by a 7-day warranty on manufacturing defects covering component defects and failures.
- Competitive pricing with bulk/wholesale discounts for educators, labs, and businesses.
How It Works
The DHT11 module uses a resistive-type polymer humidity sensor and an NTC (Negative Temperature Coefficient) thermistor to measure relative humidity and ambient temperature respectively. When your microcontroller sends a start signal on the DATA pin, the DHT11 responds with a 40-bit data frame containing 8-bit integer humidity, 8-bit decimal humidity, 8-bit integer temperature, 8-bit decimal temperature, and an 8-bit checksum for error verification. The on-board pull-up resistor ensures a stable HIGH state on the data line when idle. Popular libraries like the Adafruit DHT library handle the precise timing and parsing automatically, letting you read temperature and humidity values with just a few lines of code.
Pin Configuration (Module Version)
| Pin | Label | Description |
| 1 | VCC (+) | Power supply input: 3.3V - 5.5V DC |
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy DHT 11 Module Online in India
Purchase the DHT 11 Module online at The Tech Depot - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on DHT 11 Module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy DHT 11 Module at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.