16 Channel Optocoupler Relay Board 12V 16 Channel Relay Module with Optocoupler Protection Low Level Trigger USB Camera Module

Features: 1. Contact capacity 10A 250 V with optocoupler protection. 2. The on-board power module does not require an external power supply. 3. The port controller I / O is active low. 4. Can be used as MCU development board module, appliance control, extended output, etc. 5. With excellent industry optocoupler isolation anti-interference performance and stability. 6. Each common relay is independent and easy to use to access different signals, with port normally closed/open and an action indicator. 7. User-friendly interface design, all interfaces can be drawn directly through the wiring terminal, very convenient.   Specification: Supply voltage: 12V Drive voltage: 5V Contact capacity: 10A 250V Package weight: Approx. 209g/7.4oz   Package List: 1 * 16 Channel Relay Module