Features The Sensor Probe: Able to test both the temperature and humidity of the soil, this digital sensor probe also has a wide measurement range. High in Accuracy: Adopting standard I2C serial interface, the soil sensor probe ensures high accuracy in the digital output, very reliable. Quick to Install: Designed to have a light weight and a compact size as well, the I2C sensor probe is very convenient to install in minutes. Has A Long Cable: Comes with a long cable of 3 meters, the temperature humidity sensor probe enables more flexibility in work and operation. Wide Application: Widely used in machine room monitoring, warehouse, construction site, concrete test block detection, greenhouse and so on. Specification: Item Type: Temperature Humidity Sensor Probe Model: FS304-SHT35 Working Current: < 10mA Humidity Accuracy: ± 1.5%RH Temperature Accuracy: ± 0.1℃ Working Voltage: 3.3V Temperature Measurement Range: -20℃ ~ 100℃ Humidity Measurement Range: 0-100.0%RH Communication Interface: I2C Working Condition: -40℃ ~ 125℃, 0-99%RH Storage Condition: -20℃ ~ 80℃, 0~95%RH Shell: IP67 waterproof 304 stainless steel housing. Line Length: Approx. 300cm / 118.11in Operating Condition: The sensor works normally within the recommended operating range, please refer to the picture. Long term exposure to condition outside the normal range, especially when humidity exceeds 80%, may cause temporary signal drift, drift +3%RH after 60 hours. After returning to normal operating condition, the sensor will slowly self recover to the calibration state. Prolonged use under abnormal condition can accelerate the aging of the product.  Package List:1 x Temperature Humidity Sensor Probe Note:The relative humidity of air is a function of temperature, and air temperature has a great impact on relative humidity. Various compounds such as acids, alkalis, and salts have a significant impact on the physical properties of water vapor. The following precautions should be taken 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 places with drastic temperature changes.3. Avoid installing in areas with intense air flow.4. Avoid installing in dead corners where air does not flow.5. Avoid using in salt spray environments.6. Avoid using in corrosive gas environments. Package List 1 x Temperature Humidity Sensor Probe