{"product_id":"xy-md02-sht20-temperature-humidity-sensor-modbus-rtu-module","title":"XY-MD02 SHT20 Temperature Humidity Sensor Modbus RTU Module","description":"\u003ch1\u003eXY-MD02 SHT20 Temperature \u0026amp; Humidity Sensor Module – Modbus RTU\u003c\/h1\u003e\n\n\u003cp\u003eThe XY-MD02 is a precision temperature and humidity sensor module using the SHT20 sensor chip, communicating via Modbus RTU over RS485. It provides accurate environmental data for industrial automation, greenhouses, and weather monitoring. With a wide voltage range and robust protocol, it integrates easily with PLCs and microcontrollers.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSensor\u003c\/td\u003e\n\u003ctd\u003eSensirion SHT20\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eRS485, Modbus RTU\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-40°C to +125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHumidity Range\u003c\/td\u003e\n\u003ctd\u003e0% to 100% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.3°C (temp), ±3% RH (humidity, typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e3.3V to 5.5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eIndustrial environmental monitoring system with PLC logging\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/esp32-greenhouse-climate-kit-with-encrypted-mqtt-data-secure-iot\"\u003eSmart greenhouse climate control using Raspberry Pi\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-server-room-temperature-monitor-kit-v4\"\u003eServer room temperature and humidity alert system\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-indoor-weather-station\"\u003eHome automation weather station with Modbus gateway\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe module works with any device supporting Modbus RTU over RS485, such as Arduino with MAX485 converter, ESP32 with RS485 transceiver, industrial PLCs, and Raspberry Pi with USB-RS485 adapter. It operates at 3.3V to 5.5V logic levels.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect A (non-inverting) and B (inverting) to your RS485 bus, and power with 3.3–5.5V DC. For long cable runs, use 120Ω termination resistors at both ends of the line.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, you can interface it with Arduino using an RS485 transceiver module like MAX485. Wire RO, DI, RE, DE pins appropriately and use a Modbus library.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use this with 5V systems?\u003c\/summary\u003e\u003cp\u003eThe module accepts 3.3V to 5.5V power, so it works directly with 5V systems without level shifting.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the default Modbus address?\u003c\/summary\u003e\u003cp\u003eThe default Modbus slave address is usually 1, but you can modify it via Modbus commands using the configuration register.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53444953440621,"sku":"CDN-0213","price":700.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_0255b94a-8af8-45da-b0b2-e7aef259dc99.jpg?v=1781512301","url":"https:\/\/compoden.com\/products\/xy-md02-sht20-temperature-humidity-sensor-modbus-rtu-module","provider":"Compoden","version":"1.0","type":"link"}