Sensor Probe I2C Interface Waterproof Sensor Probe Soil Air Humidity and Temperature Sensor for Agricultural Greenhouses DC3.3V 1. High Accuracy: This soil temperature and humidity sensor adopts 4x series housing and 4x series chips, which have more powerful functions, higher accuracy, digitization and resolution up to 14 bit oacute;w. 2. Perfect functionality: using advanced batch technology and excellent hardware design, with high reliability and long service life. This sensor probe has full calibration, digital output and I2C interface. The I2C serial interface is easy to integrate. 3. Strong Stability: This soil sensor probe features high reliability and long-term stability. The humidity sensor is not an ordinary electronic component and requires careful protection. 4. Wide Application: The soil moisture sensor probe is widely used in server room monitoring, weather stations, warehouses, construction sites, concrete test blocks, agricultural greenhouses, flowers, nurseries and soil temperature and moisture meter. 5. Easy to carry: Soil air humidity and temperature sensor is small and light, easy to carry and install, does not take up too much space. Specification: Item Type: Sensor Probe Model: FS400 SHT40 Working Current: Humidity Accuracy: plusmn; 3% RH Temperature accuracy: plusmn; 0.2deg; c Operating voltage: 3.3V Temperature measurement range: -20 to 100 Humidity meter range: 0 to 100% RH Communication interface: i sup2; c Operational condition: - 20 deg; C to 90 deg; c, 0 to 99% RH Storage conditions: - 20 to 80, 0 to 95% RH Housing: stainless steel and plastic Cable length: approx. 150cm / 59.06in Features: 1. Digitization, resolution is up to 14 bit oacute; in 2. Internal self-calibration, no calibration required 3. Close connection of temperature and humidity is convenient for dew point measurement 4. Anti-shower, dustproof, rust-proof, high reliability and long-term stability Air relative humidity is a function of temperature. Air temperature has a large impact on relative humidity. Acids, bases, salts and other compounds have a significant impact on the physical properties of water vapor. Please pay attention to the following points when using: 1. The temperature and humidity sensor should be installed in a place where the temperature is relatively stable and can best represent the measured ambient temperature and humidity. 2. Avoid installing in areas with drastic temperature changes 3. Avoid installing in areas with intense air flow 4. Avoid installing in dead ends where no air flows 5. Avoid use in salt spray environments 6. Avoid use in corrosive gas environments Operating Conditions The sensor operates normally within the recommended operating range, see Fig. 1 Prolonged exposure to conditions outside the normal range, especially at 80% humidity, may cause temporary signal drift (drift upon return to normal operating conditions, the sensor slowly returns to the corrected state. Long-term use in abnormal conditions conditions will accelerate the aging of the product How to use: Wiring installation and use Package list oacute;in: 1 x sensor probe Note: 1. The power supply voltage range is 3.3V, the recommended power supply voltage is 3.3V. 2. Connect the 100nF decoupling capacitor between the internal power supply FS400 SHT4X and ground wire. 3. Prolonged exposure to high concentrations of odor chemicals may cause the sensor reading to drift.