Working voltage: DC 12V/24V(6.5-25V) Working current: 8-20MA MODBUS RTU 03 06 command control mode Input port voltage range: 5-30V Input port status supports query (default) and automatic reporting The default baud rate is 9600BPS, which can be configured to support 1200 2400 4800 19200 baud rate Input versions: PNP high level input (green PCB) Size: 122 x 88 x 47mm(with Case) Weight: 200 grams(with Case)/pcs Application Automated industry PLC PLC input expansion board Digital in to RS485 Smart Home,Home Automation Identification system CCTV Camera PTZ Control Security system RS485 remote control Type: N4DIH32 Colour: Green Material: plastic Package Contents: 2 x Switch Quantity Acquisition Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.