Features DEWIN Sensor Probe, Waterproof Sensor Probe Soil Digital Temperature Humidity Sensor Probe Cable Type Waterproof I2C Output (SHT20) Specification: Item Type: Temperature and Humidity Sensor Model: FS304-SHT20 Working Current: <10mA Temperature Measurement Range: -20 ° C ~ 100 ° C Humidity Measurement Range: 0~100%RH Working Conditions: - 40 ° C ~ 125 ° C, 0 ~ 99% RH Storage Conditions: - 20 ° C ~ 80 ° C, 0 ~ 95% RH Shell: 304 stainless steel, IP67 waterproof Line Length: Approx. 150cm / 59.1in Weight: 61 g / 2.2 oz(approx.) Model：SHT20 Humidity Accuracy (%RH): ±3 Temperature Accuracy (°C): ±0.3 Voltage (V): 3.3 Package List: 1 x Temperature and Humidity Sensor 1 x Line Mark Precautions: Relative humidity of air is a function of temperature. Air temperature has a great influence on relative humidity. Various compounds such as acid and alkali salts have a significant impact on the physical properties of water vapor. The following items should be noted when using: 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. 3. Avoid installation in places where the air is flowing. 4. Avoid installing dead corners where air does not flow. 5. Avoid using it in a salt spray environment. 6. Avoid use in corrosive gas environments. 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). Package List