Temperature Humidity Sensor Probe | I2C Digital Output

This I2C temperature and humidity sensor probe works for your electronics projects. It comes with a Sensirion SHT-series sensor you choose. This sensor gives you calibrated digital output. The probe has a waterproof housing and a one-meter cable. This lets you put the sensor where you need to take a measurement. Features and Benefits - Sensor Options - Pick from the SHT20, SHT30, SHTC3, or SHT35. This helps you balance project cost with how accurate you need it to be. The SHT20 has ±0.3°C accuracy, while the SHT35 has ±0.15°C accuracy. - Digital I2C Interface - It connects to microcontrollers like an Arduino or ESP32 with two wires. This simple setup helps you integrate it into your project faster. - Waterproof Probe Housing - The sensor sits inside a sintered copper-nickel plated housing. This protects the parts from moisture and dust. You can use it outdoors or in wet soil. - Factory Calibrated Output - Each sensor is calibrated when you get it. You get direct, accurate temperature and humidity readings. You don't need to write complex conversion formulas in your code. Applications - Building a custom weather station to record local climate data. - Checking soil moisture and air conditions in a greenhouse or garden. - Controlling the environment inside a reptile terrarium, incubator, or curing chamber. How It Works This Temperature Sensor is a digital humidity probe that uses an I2C interface to communicate with a controller. It measures both temperature and humidity, providing precise data for various applications. The sensor operates by converting environmental conditions into an electrical signal that can be read by a connected device. This allows for accurate monitoring and control based on the specific SHT-series model, such as the SHT20, SHT30, SHTC3, or SHT35, each offering varying operating voltages and accuracy levels. What It Controls This control sensor is designed to provide critical environmental data to a controller, which then regulates other systems. For example, a water temperature sensor in a heating system would signal the controller to adjust boiler output. Similarly, this digital humidity probe can control ventilation systems, dehumidifiers, or air conditioning units to maintain desired atmospheric conditions. Its I2C output ensures reliable data transmission for effective environmental management within its specified temperature and humidity ranges. Signs of a Failing Sensor A failing temperature or humidity sensor can lead to inaccurate readings and inefficient system operation. Common indicators include inconsistent temperature or humidity displays, unexpected changes in environmental conditions not reflected by other instruments, or system errors related to sensor input. For this SHT-series sensor, if the I2C communication is intermittent or non-existent, it suggests a potential failure. The accuracy of the sensor, such as ±0.2°C for temperature or ±2% RH for humidity on certain models, can degrade over time. Location The optimal location for this temperature and humidity sensor probe depends on the specific application. For general environmental monitoring, it should be placed in the area where representative readings are needed, away from direct heat sources, drafts, or extreme moisture. If used as an intake air temperature (IAT) sensor, it would typically be located in the vehicle's intake manifold or air filter housing to measure the temperature of the air entering the engine. Its compact design allows for versatile placement. Common Symptoms of a Bad IAT Sensor A faulty intake air temperature (IAT) sensor can significantly impact engine performance and fuel efficiency. Common symptoms include: - Increased fuel consumption due to incorrect air-fuel mixture adjustments. - Rough idling or stalling, especially when starting the engine. - Poor acceleration or a noticeable loss of engine power. - The "check engine" light illuminating on the dashboard. - Difficulty starting the engine, particularly in extreme temperatures. These issues arise because the engine control unit (ECU) relies on accurate IAT data to optimise combustion.