brand new and high quality Features: 1 working voltage: for DC 6.5-30v (9V 12V, 24V)2 working current: 5mA for all channels and 57ma for all channels3 open, close, inching, self-locking, interlock, delay six working modes4 MODBUS commandMaximum delay of 255 seconds under 5 MODBUS commandIn addition to the serial super terminal input, MODBUS poll can also be used to input MODBUS command7 MODBUS command mode, can support up to 64 devices in parallel8. The default baud rate is 9600bps. You can modify the baud rate 1200 24004800 19200bps by instruction9 weight: 65g (circuit board); 144g (box with guide rail)Maximum load: the maximum load current of each channel is 300mA Specifications:Color: GreenWidth: suitable for circuit board width um72 (inside 72)Insulation grade: flame retardant VO gradeBoard length: suitable for 10 for cm PCBNet weight: 72gInstallation method: dim35 and C45 guide railsize: 100 * 72 * 20MM (circuit board); 120 * 88 * 42mm (with guide rail box)Quantity:1 pc Note:No retail package.Transition: 1cm=10mm=0.39inch.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes:1 x Relay Board(other accessories demo in the picture is not included.)