1、CASCADING MODULE: There are multiple ports, and by modifying the 485 address, a maximum of 247 modules can be cascaded (if there are more than 16, please use R485 repeater). 2、MEASURING RANGE: The temperature measurement range is ‑4‑125℃, with an accuracy of ±0.2℃, and the humidity measurement range is 0‑100%RH, with an accuracy of ±2%RH. 3、WIDE APPLICATION: Suitable for industrial system, weather forecasting and monitoring, temperature and humidity measurement in greenhouse, computer room, and warehouse. 4、16 CHANNELS: The acquisition module is designed with 16 channels, making it easy to connect and operate, and has a wide range of applications. 5、DUAL MATERIAL: The temperature humidity collector has a compact size, and the shell is made of excellent plastic, which can be used in various environments. Item Type: 16CH Acquisition Module Power Supply Voltage: DC 8-30V Working Current: 5-7mA Support Protocol: 03 read instruction, 06 or 16 write instruction Serial Port Baud Rate: 1200-115200, 9600 (default), 8 data bits, 1 stop bit Serial Port Parity Bit: No parity (default), even parity, odd parity By modifying the 485 address, a maximum of 247 modules can be cascaded (if there are more than 16, please use R485 repeaters) Sensor: SHT30 Temperature and Humidity Sensor Temperature Measuring Range: -4-125℃ (please use in an environment of -40-80℃ due to the high temperature resistance of the shell and wires) Humidity Measuring Range: 0-100%RH Accuracy: ±0.2℃; ±2%RH Collector Size: Approx. 145 x 90 x 40mm / 5.7 x 3.5 x 1.6in 1 x Acquisition Module