Features Strong Stability: This soil sensor probe is characterised by high reliability and long term stability. Humidity sensor is not ordinary electronic components and require careful protection. High Accuracy: This soil temperature and humidity sensor adopts 4x series casing and 4x series chips, which has more powerful functions, higher accuracy, digitization, and a resolution of up to 14 bits. Excellent Functionality: Using advanced batch technology and excellent hardware design, with high reliability and long life. This sensor probe has full calibration, digital output and I2C interface. I2C serial interface easy to integrate. Easy to Carry: Soil temperature humidity sensor probe is small and light, easy to carry and install, does not take up too much space. Wide Application: 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 humidity measurement. Specification: Item Type: Sensor Probe Model: FS400 SHT40 Operating Current: <15mA Humidity Accuracy: ±3%RH Temperature Accuracy: ±0.2°C Operating Voltage: 3.3V Temperature Measurement Range: -20℃ to 100℃ Humidity Measurement Range: 0 to 100%RH Communication Interface: I²C Operating Condition: - 20°C to 90°C, 0 to 99%RH Storage condition: - 20℃ to 80℃, 0 to 95%RH Housing: Stainless steel and plastic Cable Length: Approx.150cm / 59.06in Working conditions The sensor performs normally within the recommended operating range, see Figure 1 Long term exposure to conditions outside the normal range, especially at humidity >80%, may cause temporary signal drift (drift <3%RH after 60 hours) When returned to normal operating conditions, the sensor will slowly return to the corrected state Prolonged use under abnormal conditions will accelerate the aging of the product Package List: 1 x Sensor Probe Note: 1.The supply voltage range is 3.3V, the recommended supply voltage is 3.3V. 2.Connect a 100nF decoupling capacitor between the FS400 SHT4X internal power supply and the ground wire. 3.Prolonged exposure to high concentrations of chemical odors can cause sensor readings to drift. Package List 1 x Sensor Probe