Controllable 4-Outlet Power Relay Module - AC Switch pointed tip pulse demos

pulse demos

same as HC-SR04 PCB Dimensions 42 × 29 × 12 mm PCB Color Blue Operating Temperature -20°C to +70°C Waterproof Transducer probe only — PCB must be kept dry Compatible Platforms Arduino

border-radius:8px} Detect Nearby Objects Without Contact

border-radius:8px} Wired Miniature Electret Microphone

// silent 800 ms } Specifications

Controllable 4-Outlet Power Relay Module - AC Switch pointed tip pulse demosSimple Load Switching for Arduino, ESP32, and Automation Builds The Controllable Four Outlet Power Relay Module is a practical relay module from Circuitrocks for students, makers, and repair friendly builds. It fits well in projects that need switching external loads, while keeping setup straightforward for testing and prototype work. Compared with generic parts, this product stands out through details such as relay module. That makes it a solid