1、Can read temperature and PT100 resistance value, temperature measurement accuracy 1%. 2、By modifying the 485 address, up to 247 modules can be cascaded (more than 16 please use R485 repeater). 3、Wide temperature measurement range, version A ‑20℃ to +400℃, can meet different needs. 4、High compatibility, can be used for adapted sensors, PT100 3‑wire or 2‑wire sensors. 5、Wide application range, constant temperature control, industrial system, thermal system, weight measuring instrument, weather forecast. Item Type: RTU Module Working Current: 8-13MA RTU Protocol, 03 Read Instruction, 06 Write Instruction: Support Serial Port Baud Rate: 9600 (Default), N, 8, 1 Temperature Measurement Range: Version A -20℃ to +400℃; It is Recommended to Choose a Version with a Smaller Range within the Range That Satisfies the Measurement. Temperature Measurement Accuracy: 1%, if the Temperature Deviation is Too Large, Please Recalibrate Size: Approx. 60 x 30 x 16mm / 2.4 x 1.2 x 0.6in 1 x RTU Module