[Humanized Interface Design]This 4 Channel Relay Module with Humanized interface design, all interfaces can be directly connected through the terminal , very convenient. Four fixing bolt holes are provided. Standard interface that can be controlled directly by microcontroller (, 8051, AVR, , DSP, ARM, ARM, MSP430, TTL logic)
[Fault-tolerant Design]This 4 Channel Relay Module with Fault-tolerant design,even if the control line breaks,the relay will not move. Power indicator light (green), 4-way relay state indicator light (red).
[Stable Performance]The Relay Board adopt patch photocoupler isolation, strong driving ability, stable performance. current is 5mA. The module can be high or low by a jumper setting .The module uses genuine quality relay, normally open interfaces.
[Service guarantee]We offer customer service. If you have any questions, please do not hesitate to us. We will do our best to help you solve your problem.
[More Choice] Relay module operating voltage is 5V,12V,24V for choice. Each of the module can be triggered by the high level or low level through a jumper setting.
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