SHT10 Temperature And Humidity Sensor

The SHT10 Soil Temperature and Moisture Sensor is a high-quality, professional-grade environmental sensor designed for simultaneous monitoring of soil moisture (humidity) and soil temperature . Built around the trusted SHT10 digital sensor from Sensirion — a leading manufacturer of precision humidity and temperature sensors — this module delivers reliable, factory-calibrated readings perfectly suited for both research and commercial agriculture applications. The sensor is housed inside a rugged, waterproof, corrosion-resistant stainless steel probe measuring 14mm in diameter and 50mm long , allowing it to be inserted directly into soil and left in place for long-term continuous monitoring . The fully sealed design protects the internal electronics from moisture, mineral salts, fertilizers, and other corrosive substances typically found in soils, making it ideal for harsh outdoor environments, farms, gardens, greenhouses, and field deployments . Communication with the sensor is handled through a simple 2-wire digital interface (similar to I2C, often referred to as Sensibus). This makes integration with microcontrollers like Arduino, ESP32, ESP8266, Raspberry Pi , and other development boards extremely straightforward — and avoids the noise and drift issues that plague analog soil moisture sensors. The digital output is factory-calibrated and provides stable, repeatable readings without the need for user calibration in most agricultural applications. The sensor measures soil humidity (volumetric water content) with ±4.5% accuracy and temperature with ±0.5°C accuracy , across a wide working range of -40°C to +120°C and 0% to 100% relative humidity . This wide range makes it suitable not only for typical garden and greenhouse use but also for scientific research, agricultural automation, hydroponics, smart irrigation systems, and environmental monitoring stations . The sensor connects via a 1-meter durable cable with four clearly color-coded wires for easy installation: Red ? VCC (3V – 5V DC) Black or Green ? GND Yellow ? Clock (SCK) Blue ? Data (DATA) This sensor is widely used in precision agriculture, automated irrigation, environmental data logging, soil condition research, and smart farming projects . Combined with a microcontroller, a wireless module (LoRa, WiFi, GSM), and a cloud platform, it forms the heart of a complete smart soil monitoring solution . Specifications Sensor & Performance Sensor Chip: Sensirion SHT10 (Digital) Measurement: Soil Moisture (Humidity) + Soil Temperature Humidity Accuracy: ±4.5% RH Temperature Accuracy: ±0.5 °C Humidity Range: 0% – 100% RH Temperature Range: -40 °C to +120 °C Output Type: Calibrated digital signal Communication Interface: 2-Wire (Sensibus, I2C-like) Mechanical & Physical Probe Diameter: 14 mm Probe Length: 50 mm Probe Material: Stainless steel (waterproof, corrosion-resistant) Cable Length: 1 meter Wires: 4 (color-coded) Encapsulation: Sealed for long-term outdoor use Electrical Supply Voltage: 3V – 5V DC Microcontroller Compatibility: Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and more Wiring (Color Code) Wire Color Function Red VCC (3–5 VDC) Black or Green GND Yellow Clock (SCK) Blue Data (DATA) Applications Smart agriculture and precision farming Automated irrigation systems — water only when soil is dry Greenhouse climate and soil monitoring Hydroponic and aquaponic systems Home gardens and indoor plant monitoring Soil condition research — universities, agronomy labs Environmental monitoring stations IoT-based smart farms with WiFi, LoRa, or GSM uplinks Vineyards, orchards, and crop fields Forestry and wildland soil monitoring Sports turf and golf course soil monitoring Building moisture monitoring in foundations and basements Educational STEM and agricultural projects Arduino, ESP32, ESP8266, Raspberry Pi sensor stations Long-term data logging in remote field locations