Features Anti -interference Ability: The four -way relay module is selected by a selected miniature optical puppet, anti -interference ability, and has stable performance. Stable and Reliable: The optocoupler isolation relay module uses 9.5 mm black barrier terminals and standard 30A terminals, stable and reliable. 3 Models Available: The relay control board has excellent workmanship and use of selected materials, there are 3 models available: DC5V, DC12V, DC24V. High Sensitivity: The 30A relay module can choose four methods of high/low -level trigger, which has high accuracy, high sensitivity, high stability and durability. Practicality: The relay module adopts precision manufacturing technology and sensitive elements. It has a stable and reliable structure and is practical. Features: 1. New. 2. Made of the miniature optocoupler, anti-interference ability, stable performance 3. Adopt 9.5mm black barrier terminal and standard 30A terminal which is stable and reliable. 4. Four ways can select high/low level trigger. 5. Available in three style for you.   Specification: Condition: 100% Brand New Model: YYG-4 Output Capability: AC 250V/30A, less than DC 30V/30A Optional Style: DC5V, DC12V, DC24V Weight: Approx. 175g / 6.2oz Size: Approx. 130.4 * 69.0mm / 5.1 * 2.7in   Package List: 1 * Four Way Relay Module Package List