Features: Experience precise temperature control with our 8ch DS18B20 RS485 Modbus RTU Temperature Control Sensor Remote Digital Module. This module supports MODBUS RTU command codes 03 and 06, enabling easy adjustment of temperature settings. Supports address modification, allowing up to 247 modules to be cascaded (for more than 16 modules, use R485 repeaters). Equipped with DS18B20 temperature sensors, it can connect up to 8 DS18B20 sensors simultaneously. Ideal for industrial systems, consumer products, and thermally sensitive applications, this module is suitable for engineers and DIY enthusiasts. Specifications: Power supply voltage: 6-24V Working current: 8-13mA (varies with number of external DS18B20 sensors) MODBUS RTU command support: function codes 03 and 06 Measurable temperature range: -55°C to +125°C (-67°F to +257°F) Size: approximately 70x46x18mm (2.75x1.81x0.71in) Weight: 40g Note: Due to lighting effects and shooting angles, slight color variations may occur. Please allow 0-1cm measurement deviation due to manual measurement. Package includes: 1 x RS485 DS18B20 Sensor Module