2Pcs DC 5V 4 Channel Relay Module Board Shield with Optocoupler Isolation Suport High/Low Level Trigger Relay sold2025 can not match with other

can not match with other modules and other number of teeth)

Whether wrapping around bundled items or securing surfaces for neat

Compatible with both Laser and Inkjet printer

Delivers smooth

2Pcs DC 5V 4 Channel Relay Module Board Shield with Optocoupler Isolation Suport High/Low Level Trigger Relay sold2025 can not match with other2Pcs DC 5V 4 Channel Relay Module Board Shield with Optocoupler Isolation Suport High Low Level Trigger Relay Description: Maximum load: AC 250V 10A, DC30V 10A SMD optocoupler isolation, strong driving ability, stable performance; trigger current 5mA The module voltage 5V Each channel module can be set high or low triggered by jumper Fault tolerant design, even if the control line is broken, the relay will not operate Power indicator (green), 4 relay