A. Features: - The 8-channel DS18B20 RS485 Modbus RTU temperature control sensor remote digital module can provide precise temperature control experience. - The module supports MODBUS RTU command codes 03 and 06, which enables easy modification of temperature settings. - By modifying the 485 address, up to 247 modules can be cascaded for use (if more than 16, an R485 repeater is recommended). - Using the DS18B20 temperature and humidity sensor, up to 8 DS18B20 temperature sensors can be connected simultaneously. - This module is suitable for engineers and DIY enthusiasts in industrial systems, consumer products, and temperature-sensitive systems. B. Specifications: - Power supply voltage: 6 - 24V - Operating current: 8 - 13 mA (related to the number of external DS18B20s) - MODBUS RTU commands support function codes 03 and 06 - Measurable temperature range: -55°C to +125°C (-67°F to +257°F) - Dimensions: approximately 70x46x18 mm / 2.75x1.81x0.71 inches - Weight: 40 grams C. Notes: - Due to lighting effects and shooting angles, there may be some tolerances in the product. Please understand. - Since it is a manual measurement, an error of 0 - 1 cm is allowed. D. Package contents: - 1 RS485 DS18B20 sensor module