Features: This 4-20MA to RS485 analog acquisition module is must for industrial automation applications, allowing you to accurately measure current with a resolution of 0.1MA and a measurement accuracy of 1%. With a wide operating voltageof 8-25V, MODBUS RTU command support, and the ability to connect up to 247 devices in paralleluse, this module is quite reliable. Perfect for engineers, technicians, and DIY enthusiasts who need precise current measurements in their projects or industrial applications. Use this module for automated industryPLC,home automation, identification system RS485 remote monitoring, and even multimeter voltmeter applications. Made from durable ABS material, this 4-20MA to RS485 analog acquisition module is an essential accessory for your electronics Specifications: Working voltage8-25V Working current: 9-13MA Type：With Pin/ Without Pin MODBUS RTU command supports 03 06 function code The current measurement of channel IN1/IN2is 0-25MA Size: approx 30x15x4.3mm/1.18x0.59x0.17in Weight: 1.7gram (without needle) 2.2gram (with needle) Package Includes: 1PC RS485 analog acquisition module note: The current resolution is 0.1MA, and the measurement accuracy is 1%. If the error is greater than 1%, it can be calibrated Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.