Features: Brand new and high quality Control up to 16 channels remotely with this DC 12V DIN35 C45 Rail Box RS485 Relay Module, perfect for home automation and security systems. With support for MODBUS RTU and AT command modes, this switch board offers flexible control options and can handle a maximum load of 10A/250VAC. Ideal for DIY enthusiasts, smart home owners, and professionals in the CCTV camera, motor, and identification system industries. Use this relay module to expand your PLC capabilities or to control automatic curtains, PTZ cameras, LED lights, and more. Made from durable ABS materials, this remote control board is easy to install and comes with a DIN rail box for added convenience. Specifications: Product model: UM72 Color: green Width: suitable for PCB board width UM72(72mm) Insulation grade: flame-retardant VO grade Backplane length: suitable for 180 mm PCB boards Net weight: 128g Installation: DIN35 and C45 rail Note: 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. Package includes: 1 x 16 Channel Relay Module