Features 【Applications】: The temperature and humidity sensor probe can be used in computer room monitoring, HVAC, weather station, warehouse, construction site, concrete test block inspection, agricultural greenhouse, flower nursery and soil temperature and humidity measurement. 【High Precision】: Digital output, I2C interface, high-precision electronic manufacturing components, full calibration, soil temperature and humidity sensor probe with high protection level, ultra-fast response speed, strong anti-interference ability, excellent long-term stability. 【Use】: The temperature and humidity sensor probe is a cable-type sensor in the digital temperature and humidity sensor series, with fine craftsmanship, the sensor is easy to hold in the hand safely, easy to install and disassemble, simple to operate, time-saving and efficient. 【Parameters】: Temperature measurement range: -20°C~100°C, humidity measurement range: 0~100%RH, there are FS304-SHT20, FS304-SHT21, FS304-SHT25 models for selection to meet the needs of different projects. 【Durable Material】: Shell: 304 stainless steel, dust-proof, rust-proof, corrosion-resistant, IP67 waterproof level, durable temperature and humidity sensor probe, suitable for use in different places and environments, DFN package for reflow soldering, low power consumption, low cost, volume small. Specification: Item Type: Temperature and Humidity Sensor Model: FS304-SHT20/FS304-SHT21/FS304-SHT25(Optional) Working Current:<10mA Temperature Measurement Range: -20℃~100℃ Humidity Measurement Range: 0~100%RH Working Conditions: - 40℃~125℃, 0~99%RH Storage Conditions: - 20℃~80℃, 0~95%RH Shell: 304 stainless steel, IP67 waterproof Line Length: Approx. 150cm/59.1in Weight: 61g/2.2oz Model Difference: Model/Humidity Accuracy (%RH)/Temperature Accuracy (℃)/Voltage (V) SHT20/±3/±0.3/3.3 SHT21/±2/±0.3/3.3 SHT25/±1.8/±0.2/3.3  Package List: 1 x Temperature and Humidity Sensor 1 x Line Mark Precautions: 1. The temperature and humidity sensor should be installed in a place where the temperature is relatively stable and most representative of the measured ambient temperature and humidity. 2. Avoid installation in places where the temperature changes drastically/the air is flowing/air does not flow. 3. Avoid using it in a salt spray environment/corrosive gas Working Conditions: The sensor has normal performance within the recommended operating range. Long-term exposure to conditions outside the normal range, especially at humidity >80%, may result in temporary signal drift (after 60 hours drift +3% RH). When returning to normal After the working conditions, the sensor will slowly return to the calibration state. Prolonged use under abnormal conditions will accelerate the aging of the product. Package List