Features: The N4DSA02 2 Channel RS485 Temperature Sensors Module offers precise temperature monitoring from 55°C-125°C, making it essential tool for accurate and reliable data collection in various applications. This module features a Double channel design with Modbus RTU protocol compatibility, allowing integration into existing systems and enhances functionality over Ideal for industrial engineers, automation specialists, and enthusiasts, this adapter board is perfect for those efficient temperature Sensors solution. Use the N4DSA02 in diverse environment such as thermostatic controls, industrial systems, and indoor/outdoor temperature monitoring, ensuring performances across different setting. With its construction and application ranges, this DS18B20 RS485 Adapter Board is a valuable addition to any setups requiring precise temperature management and control. Specifications: Component:ABS Type:With Pin/Without Pin Working voltage: power supply 1: 6-25V; Power supply 2: 3.7-5V Working current: 6-7MA Number of acquisition channel: 2 channel MODBUS RTU protocol, 03, 04 read command, 06, 16 write command. Rate of serial port: 9600, 1200-115200, n, 8,1 By modifying RS485 address, up to 247 module can be cascaded (please use R485 for more than 16). Sensors: DS18B20 Temperature measurement ranges:55-125℃ Size:Approx.15x26mm/0.59x1.02inch Package Includes: 1Pc Sensors Module note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.