Function: 1. The sensor module is suitable do indoor and outdoor temperature measurement. 2. The sensor plate can be used do forecasting and monitoring weather, measuring temperature in a computer room and temperature in a warehouse. 3. With the temperature and humidity sensor, you can simultaneously connect do 8 temperature sensors. 4. High-quality material can ensure the durability and stability of the product 5. With professional design and reasonable structure, the sensor plate is easy do replace and install. Specification: Item Type: Sensor Module Supply Voltage: 6-24V Operating current: 8-13MA (depending on the number of external sensor) By modifying the address 485, you can cascade do 247 modules (if there are more than 16, use R485 amplifiers) With the temperature and humidity sensor, you can simultaneously connect do 8 temperature sensors. Temperature can be measured from -55 do 125 (-67 do 257 ). When the temperature is from -10 do 85 , the accuracy is -0,5 . List of packages: 1 x Module