Features 1、CONTROLLABLE DEVICES: In command mode, a maximum of 64 devices can be controlled in parallel. The command can be run in the serial port hyperterminal(serial port assistant) or Poll enter 2、EXCELLENT MATERIAL: Excellent production technology, not easy to virtual welding, electronic components are very reliable 3、STRONG AND STABLE: The relay continuous suction for 100,000 times, possess strong driving ability, stable performance 4、A VARIETY OF INSTRUCTIONS: A total of 6 instructions of open, close, instantaneous, self locking, interlocking, delay 5、DELAY DURATION: In the delay command, the maximum delay is 255 seconds, you can use with confidence Specification Item Type: 8 Channel Relay Module DC 12V Power Supply: Voltage range 9-13V Standby Current: All relays closed 12MA, 1 relay on 40MA, 2 relay on 67MA, 3 relay on 95MA, 4 relay on 121MA, 5 relay on 147MA, 6 relay on 173MA, 7 relay on 198MA, 8 relay on 223MA Instructions: "On", "off", "instantaneous", "self lock", "Interlock", "delay" 6 instructions Command: RTU command Delay Time: Maximum delay is 255 seconds in delay command Command Control: The command can be in the serial port hyperterminal(serial port assistant) or Poll enter Controlled Devices: A maximum of 64 devices can be controlled in parallel in command mode Package List 1 x 8 Channel Relay Module