2 Channel Relay Module Optocoupler Protection Expansion SCM Development Board Accessories 12V

Feature: 1. SCREW HOLE DIAMETER: There are 4 fixing screw holes around the board, the hole Diameter is 3.1mm, easy to install and fix 2. WITH INDICATOR LIGHT: Low level suction, high level release. The status indicator is on when it is closed, and off when it is released 3. TERMINAL INTERFACE: Come with 3 terminals of a common end, a normally beginning end, and a normally closed end 4. GOOD ISOLATION: Come with optocoupler isolation protection, good interference resistant, you can use with confidence 5. CORROSION RESISTANT PLASTIC: Made of excellent plastic material, has strong corrosion resistance, durable, waterproof, light weight, and a good insulator Specification: Item Type: 2 Channel Relay Module Material: Plastic Screw Hole Diameter: Approx. 3.1mm 0.12in. Package List: 1 x 2 Channel Relay Module