{"product_id":"htu31d-temperature-humidity-sensor-module-arduino-htu21d-upgrade","title":"HTU31D Temperature \u0026 Humidity Sensor Module for Arduino","description":"\n\u003ch2\u003eHTU31D High-Precision Temperature \u0026amp; Humidity Sensor Module\u003c\/h2\u003e\n\u003cp\u003eUpgrade your Arduino or microcontroller projects with the \u003cstrong\u003eBS HTU31D Temperature and Humidity Sensor Module\u003c\/strong\u003e — the next-generation successor to the popular HTU21D. Engineered for makers, engineers, and electronics enthusiasts, this digital sensor module delivers exceptional accuracy and reliable readings for a wide range of applications including weather stations, smart home systems, greenhouse monitoring, and IoT projects.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the HTU31D Sensor Module?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHTU21D Upgrade:\u003c\/strong\u003e The HTU31D improves upon the HTU21D with enhanced precision, wider operating range, and improved I²C communication stability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDigital Output:\u003c\/strong\u003e Delivers clean, noise-resistant digital readings for both temperature and relative humidity — no analog-to-digital conversion needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Precision Probe:\u003c\/strong\u003e Ideal for applications where accurate environmental monitoring is critical.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArduino Compatible:\u003c\/strong\u003e Plug-and-play compatibility with Arduino, Raspberry Pi, ESP8266, ESP32, and other popular microcontroller platforms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Metal Construction:\u003c\/strong\u003e Durable metal housing protects the sensing element for long-lasting, consistent performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Integration:\u003c\/strong\u003e Standard I²C interface makes wiring straightforward, even for beginners.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e HTU31D (HTU21D Upgrade)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Type:\u003c\/strong\u003e Digital Sensor (I²C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement:\u003c\/strong\u003e Temperature \u0026amp; Relative Humidity\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Arduino, Raspberry Pi, ESP8266, ESP32, and more\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Concerned Chemicals:\u003c\/strong\u003e None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY weather stations and environmental monitors\u003c\/li\u003e\n  \u003cli\u003eSmart home automation systems\u003c\/li\u003e\n  \u003cli\u003eGreenhouse and agricultural humidity control\u003c\/li\u003e\n  \u003cli\u003eIoT sensor networks\u003c\/li\u003e\n  \u003cli\u003eHVAC system monitoring\u003c\/li\u003e\n  \u003cli\u003eLaboratory and industrial data logging\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is the HTU31D temperature and humidity sensor module compatible with Arduino boards?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The HTU31D sensor module is fully compatible with Arduino, Raspberry Pi, ESP8266, ESP32, and most other popular microcontroller platforms. It communicates via a standard I²C interface, making integration quick and straightforward with readily available libraries.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How does the HTU31D differ from the HTU21D sensor?\u003c\/h4\u003e\n\u003cp\u003eA: The HTU31D is an upgraded version of the HTU21D, offering improved measurement precision, a wider operating range, and enhanced I²C communication reliability. It is a drop-in upgrade for most projects that previously used the HTU21D, with better overall performance in demanding environmental monitoring applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What applications is this HTU31D sensor module best suited for?\u003c\/h4\u003e\n\u003cp\u003eA: The HTU31D sensor module is ideal for DIY weather stations, smart home automation, greenhouse climate monitoring, IoT sensor networks, HVAC system control, and any project where accurate, real-time temperature and humidity data is required.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is the HTU31D temperature and humidity sensor module compatible with Arduino boards?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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