Feature: 1. EXCELLENT CHIP: The transmitter adopts for 3X series chip, with high accuracy, low power consumption, digitization, with a resolution of up to 14 bits. 2. GOOD PERFORMANCE: The temperature humidity transmitter has high reliability and long term stability, complete calibration, RS485 comm interface output. 3. MEASURING RANGE: The temperature measurement range is -20-100℃, with an accuracy of ±0.2℃, the humidity range is 0-100%RH, with an accuracy of ±2%RH. 4. STAINLESS STEEL: The transmitter adopts 304 stainless steel shell, rustproof and corrosion resistant, IP67 waterproof, can operate under harsh conditions. 5. WIDE APPLICATIONS: Suitable for food temperature measurement, smart home appliances, agriculture, industrial fields, etc., convenient and practical. Specification: Item Type: Temperature Humidity Transmitter Model: FS600R SHT31 Working Current: <10mA Humidity Accuracy: ±2%RH Temperature Accuracy: ±0.2℃ Working Voltage: DC5-24V Temperature Measurement Range: -20-100℃ Humidity Measurement Range: 0-100%RH Output: RS485 Output Working Conditions: -40-125℃, 0-99%RH Storage Conditions: -20-80℃, 0-95%RH Shell: 304 Stainless Steel, IP67 Waterproof Cable Length: Approx. 150cm / 59in. Package List: 1 x Temperature Humidity Transmitter 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.Working Conditions:The sensor performs normally within the recommended operating range, please refer to Figure 1. Long term exposure to conditions 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 conditions, the sensor will slowly self recover to the calibration state. Prolonged use under abnormal conditions can accelerate the aging of the product.