Features :
- 1 channel relay module.
- One normally closed contact and one normally open contact.
- High impedance controller pin.
- Default High-level trigger.
- Pull-down circuit for the avoidance of malfunction.
- Power supply indicator lamp.
- Can be controlled various appliances & other Equipment With Large current.
- Standard TTL Level logic controlled.
- The module is compliant with international safety standards.
- With 4 fixed screw holes, hole diameter 3.1mm, convenient installation, and fixation.
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