{"product_id":"dht11-humidity-and-temperature-sensor","title":"DHT11 Humidity and Temperature Sensor","description":"\u003cmeta name=\"description\" content=\"Buy DHT11 Humidity and Temperature Sensor online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n```html\n\u003ch1\u003eDHT11 Humidity and Temperature Sensor\u003c\/h1\u003e\n\u003cp\u003eMeasure ambient temperature and relative humidity with the reliable DHT11 digital sensor - ideal for weather stations, smart home systems, and IoT projects. Available at The Tech Depot, Bengaluru, with fast shipping and full technical support.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Type\u003c\/td\u003e\n\u003ctd\u003eDigital Temperature \u0026amp; Humidity Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eDHT11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0 degreesC to 50 degreesC (+\/-2 degreesC accuracy)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Range\u003c\/td\u003e\n\u003ctd\u003e20% to 90% RH (+\/-5% RH accuracy)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V to 5.5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003eSingle-bus digital signal (proprietary one-wire protocol)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSampling Rate\u003c\/td\u003e\n\u003ctd\u003e1 reading per second (1 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensing Element\u003c\/td\u003e\n\u003ctd\u003eResistive-type humidity sensor + NTC thermistor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin Configuration\u003c\/td\u003e\n\u003ctd\u003eVCC, DATA, NC (not connected), GND (4-pin inline)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePull-Up Resistor\u003c\/td\u003e\n\u003ctd\u003e4.7kOhm-10kOhm recommended on DATA line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eApprox. 15.5mm x 12mm x 5.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~3g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eArduino, ESP8266, ESP32, Raspberry Pi, STM32, PIC, and more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal \/ Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7-day warranty on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003eEmail \u0026amp; WhatsApp 24\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Measurement:\u003c\/strong\u003e Reads both temperature and relative humidity from a single sensor, reducing component count and wiring complexity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Digital Interface:\u003c\/strong\u003e Communicates over a single data pin using a proprietary one-wire protocol - no analog-to-digital converter needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Voltage Tolerance:\u003c\/strong\u003e Operates reliably from 3.3V to 5.5V, making it compatible with both 3.3V and 5V logic-level microcontrollers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory Calibrated:\u003c\/strong\u003e Each sensor is individually calibrated at the factory with calibration coefficients stored in OTP memory for consistent readings out of the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Power Consumption:\u003c\/strong\u003e Draws minimal current during standby and measurement, well-suited for battery-powered and solar-powered applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e Small 4-pin inline package fits easily on breadboards, perfboards, and custom PCBs without taking up significant space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtensive Library Support:\u003c\/strong\u003e Supported by popular libraries including Adafruit DHT, SimpleDHT, and DHTlib for Arduino, MicroPython, and CircuitPython environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Transmission Distance:\u003c\/strong\u003e Reliable data transmission over cable lengths up to 20 meters, enabling remote sensor placement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose the DHT11 from The Tech Depot?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e100% authentic sensors sourced directly from authorized distributors - no clones or rejects.\u003c\/li\u003e\n\u003cli\u003eEvery unit tested before dispatch to ensure accurate readings and reliable data output.\u003c\/li\u003e\n\u003cli\u003e1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse; same-day delivery within Bengaluru.\u003c\/li\u003e\n\u003cli\u003eExpert technical support included - get help with wiring, code, and troubleshooting via email or WhatsApp.\u003c\/li\u003e\n\u003cli\u003eIdeal for beginners and professionals alike, backed by clear documentation and project guidance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eThe DHT11 contains a resistive-type humidity sensing element and an NTC (Negative Temperature Coefficient) thermistor. When the microcontroller sends a start signal on the DATA pin, the sensor 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. The microcontroller reads the pulse widths on the data line to decode each bit. A pull-up resistor (4.7kOhm-10kOhm) on the DATA line is required to keep the bus high during idle states. The entire read cycle completes in approximately 4 milliseconds, after which the sensor returns to low-power standby until the next request.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Guide\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDHT11 Pin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin 1 - VCC\u003c\/td\u003e\n\u003ctd\u003e3.3V or 5V power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin 2 - DATA\u003c\/td\u003e\n\u003ctd\u003eDigital I\/O pin on microcontroller (e.g., Arduino D2) with 4.7kOhm-10kOhm pull-up resistor to VCC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin 3 - NC\u003c\/td\u003e\n\u003ctd\u003eNot connected (leave floating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin 4 - GND\u003c\/td\u003e\n\u003ctd\u003eGround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eProject Ideas\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eProducts ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs technical support available?\u003c\/summary\u003e\n\u003cp\u003eYes, 24\/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return policy?\u003c\/summary\u003e\n\u003cp\u003e7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eBuy DHT11 Humidity and Temperature Sensor Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eDHT11 Humidity and Temperature Sensor\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e - 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 \u003cstrong\u003eDHT11 Humidity and Temperature Sensor\u003c\/strong\u003e 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.\u003c\/p\u003e\n\u003cp\u003eLooking to buy \u003cstrong\u003eDHT11 Humidity and Temperature Sensor\u003c\/strong\u003e 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.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48746534174977,"sku":"TTD-17384","price":101.76,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/318157287fa3621933da31d5ea77d120.jpg?v=1778107005","url":"https:\/\/techdepot.in\/products\/dht11-humidity-and-temperature-sensor","provider":"Tech Depot India","version":"1.0","type":"link"}