{"product_id":"htu21d-temperature-humidity-sensor-module-smd","title":"HTU21D Temperature \u0026 Humidity Sensor Module – SMD 5V","description":"\n\u003ch2\u003eHTU21D Temperature \u0026amp; Humidity Sensor Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHTU21D Temperature and Humidity Sensor Module\u003c\/strong\u003e is a compact, high-accuracy SMD sensor designed for a wide range of electronics and computing projects. Whether you're building a weather station, a smart home device, or an industrial monitoring system, this module delivers reliable, real-time environmental data with minimal power consumption.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Accuracy Sensing:\u003c\/strong\u003e Precisely measures both temperature and relative humidity for dependable environmental monitoring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Range:\u003c\/strong\u003e Functions across temperatures from \u003cstrong\u003e-40°C to +105°C\u003c\/strong\u003e, making it suitable for demanding environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Supply Voltage:\u003c\/strong\u003e Operates at \u003cstrong\u003e1.5V to 3.6V\u003c\/strong\u003e, ideal for battery-powered and low-energy projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSMD Package:\u003c\/strong\u003e Surface-mount design for easy integration into custom PCBs and breadboard-compatible carrier boards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5V Dissipation Power:\u003c\/strong\u003e Compatible with standard microcontroller setups including Arduino, Raspberry Pi, and similar platforms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo High-Concern Chemicals:\u003c\/strong\u003e Safe and compliant — contains none of the restricted high-concern substances.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomizable Integration:\u003c\/strong\u003e Supports custom project configurations and flexible wiring options.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e Small form factor fits tight enclosures and embedded designs without compromise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHTU21D Temperature \u0026amp; Humidity\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5V – 3.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDissipation Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +105°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSMD\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eComputer \/ Microcontroller Projects\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat Can You Use It For?\u003c\/h3\u003e\n\u003cp\u003eThis sensor module is perfect for hobbyists, engineers, and students who need accurate environmental data in their projects:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY weather stations and climate monitors\u003c\/li\u003e\n  \u003cli\u003eSmart home automation systems\u003c\/li\u003e\n  \u003cli\u003eArduino and Raspberry Pi sensor projects\u003c\/li\u003e\n  \u003cli\u003eIndustrial and laboratory environmental monitoring\u003c\/li\u003e\n  \u003cli\u003eHVAC control systems\u003c\/li\u003e\n  \u003cli\u003eData loggers and IoT applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003cp\u003eLooking for other electronics and DIY tools? Check out the \u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e or the \u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge – DIY Tool\u003c\/a\u003e for more project essentials.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What microcontrollers are compatible with the HTU21D Temperature and Humidity Sensor Module?\u003c\/h4\u003e\n\u003cp\u003eA: The HTU21D sensor module is compatible with a wide range of popular microcontrollers including Arduino (Uno, Nano, Mega), Raspberry Pi, ESP8266, ESP32, and other platforms that support I²C communication. Its low supply voltage of 1.5V–3.6V makes it versatile for both 3.3V and 5V systems (with an appropriate voltage regulator if needed).\u003c\/p\u003e\n\u003ch4\u003eQ: How accurate is the HTU21D sensor module for temperature and humidity readings?\u003c\/h4\u003e\n\u003cp\u003eA: The HTU21D is known for its high measurement accuracy, offering typical accuracy of ±0.3°C for temperature and ±2% RH for relative humidity. This makes it well-suited for applications requiring precise environmental monitoring, such as weather stations, smart home devices, and laboratory setups.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this HTU21D module come ready to use, or does it require additional components?\u003c\/h4\u003e\n\u003cp\u003eA: The module comes as a single SMD-packaged unit. For most breadboard or development board projects, you may need a carrier board or adapter. It communicates via the standard I²C protocol, so you'll need just a couple of data lines (SDA and SCL) plus power and ground connections to get started.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What microcontrollers are compatible with the HTU21D Temperature and Humidity Sensor Module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The HTU21D sensor module is compatible with a wide range of popular microcontrollers including Arduino (Uno, Nano, Mega), Raspberry Pi, ESP8266, ESP32, and other platforms that support I²C communication. 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It communicates via the standard I²C protocol, so you'll need just a couple of data lines (SDA and SCL) plus power and ground connections to get started.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"HTU21D Temperature \u0026 Humidity Sensor Module – SMD 5V\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/htu21d-temperature-humidity-sensor-module-smd\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"Default Title","offer_id":44167237533783,"sku":"\u003cnone\u003e","price":9.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/S9d34eec951b34e018e62867a61a2daf1d.webp?v=1786759856","url":"https:\/\/axlcustomersupport.com\/products\/htu21d-temperature-humidity-sensor-module-smd","provider":"Axl","version":"1.0","type":"link"}