Function: 1. Supply voltage: DC 6-24V (DC 9V, 12V, 15V, 24V) 2. Working current: 8-13mA (varies based on number of external DS18B20 sensors) 3. MODBUS RTU supports function codes 03 and 06 4. Adjustable 485 address allows up to 247 modules to be cascaded (use an R485 repeater when connecting more than 16 modules) Supports connection of up to 8 DS18B20 temperature sensors simultaneously (DS18B20 sensors not included). Temperature measurement range: -55°C to +125°C (-67°F to +257°F). Accuracy: ±0.5°C within the range of -10°C to +85°C. Dimensions: 70 x 46 x 18 mm Weight: 40 grams Typical applications: - Thermostatic controls - Paperless recorders - Industrial and consumer thermometers - Indoor and outdoor temperature monitoring - Vegetable garden temperature measurement - Weather forecasting and environmental monitoring - Computer room temperature monitoring - Warehouse temperature monitoring Color: White + Blue Material: PCB board + electronic components Package contents: 1 x R4DCB08 8CH RS485 Temperature Sensor Board Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and display settings may cause slight color variations between the product image and the actual item. Measurement error allowance: ±1-3 cm.