DHT11 Humidity and Temperature Sensor Module
DHT11 Humidity and Temperature Sensor Module
DHT11 Humidity and Temperature Sensor Module
Measure ambient temperature and relative humidity with ease using the DHT11 sensor module from The Tech Depot, Bengaluru. This popular digital sensor delivers reliable readings through a single-wire interface, making it ideal for Arduino, ESP32, Raspberry Pi, and other microcontroller projects. Fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support included.
Specifications
| Sensor Type | DHT11 Digital Temperature & Humidity Sensor |
| Temperature Range | 0 degreesC to 50 degreesC (+/-2 degreesC accuracy) |
| Humidity Range | 20% to 90% RH (+/-5% RH accuracy) |
| Operating Voltage | 3.3V - 5.5V DC |
| Output Signal | Single-bus digital signal (proprietary one-wire protocol) |
| Sampling Rate | 1 reading per second (1 Hz) |
| Resolution | Temperature: 1 degreesC | Humidity: 1% RH |
| Onboard Pull-up Resistor | Yes (10 kOhm included on module PCB) |
| Pin Configuration | VCC, DATA, GND (3-pin header) |
| Power Indicator | Onboard LED |
| Module Dimensions | Approx. 30 mm x 20 mm x 10 mm |
| Mounting | Screw hole for secure installation |
| Compatibility | Arduino, ESP8266, ESP32, Raspberry Pi, STM32, PIC, and more |
| Origin | Original/Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Dual Sensing: Measures both temperature and humidity with a single module, reducing component count in your project.
- Pre-calibrated Digital Output: Factory-calibrated coefficients stored in OTP memory ensure accurate readings straight out of the box-no manual calibration required.
- Simple 3-Pin Interface: VCC, DATA, and GND pins with an onboard pull-up resistor let you connect directly to any microcontroller without extra circuitry.
- Wide Voltage Compatibility: Operates from 3.3V to 5.5V, making it compatible with both 3.3V logic (ESP32, Raspberry Pi) and 5V logic (Arduino Uno, Mega) boards.
- Extensive Library Support: Works seamlessly with the widely available DHT library for Arduino IDE, MicroPython, CircuitPython, and Raspberry Pi Python libraries.
- Low Power Consumption: Draws minimal current during standby and measurement, suitable for battery-powered and solar-powered IoT deployments.
- Compact Breakout Board: Module PCB includes power indicator LED and mounting hole for easy integration into enclosures and prototypes.
- Long Transmission Distance: Signal can travel up to 20 meters of cable, enabling remote sensor placement in weather stations and greenhouse setups.
Why Choose The Tech Depot?
- 100% authentic DHT11 modules sourced directly from trusted, authorized suppliers
- 1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse
- Same-day dispatch for orders placed before 2 PM (Bengaluru local delivery available)
- Expert technical support to help you wire, code, and troubleshoot your project
- Rigorous quality checks before every shipment
How It Works
The DHT11 module uses a capacitive humidity sensor and a thermistor to measure the surrounding air conditions. When your microcontroller sends a start signal on the DATA pin, the DHT11 responds with a 40-bit data frame containing humidity integer, humidity decimal, temperature integer, temperature decimal, and a checksum byte. The onboard controller handles all the analog-to-digital conversion internally, so you receive clean, calibrated digital data ready for processing. Popular libraries like Adafruit's DHT library abstract this protocol into simple function calls such as readTemperature() and readHumidity().
Wiring Guide
| DHT11 Module Pin | Arduino Uno | ESP32 | Raspberry Pi |
| VCC (+) | 5V | 3.3V | 3.3V (Pin 1) |
| DATA (OUT/S) | Digital Pin 2 | GPIO 4 | GPIO 4 (Pin 7) |
| GND () | GND | GND | GND (Pin 6) |
Note: The module includes an onboard 10 kOhm pull-up resist
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 DHT11 Humidity and Temperature Sensor Module Online in India
Purchase the DHT11 Humidity and Temperature Sensor 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 DHT11 Humidity and Temperature Sensor 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 DHT11 Humidity and Temperature Sensor 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.