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- Product Name: HC-SR04 Ultrasonic Distance Sonar Sensor
- Operating Voltage: 5V
- Measuring Range: 2cm to 400cm
- Accuracy: ±3mm
- Applications: Distance measurement, obstacle detection, automation projects
- Availability: Available at Circuit City BD
- Product Name: US-015 Ultrasonic Module Distance Measuring Transducer Sensor
- Operating Voltage: 5V
- Measuring Range: 2cm to 400cm
- Accuracy: ±0.3cm
- Applications: Distance measurement, automation, robotics, liquid level detection
- Availability: Available at Circuit City BD
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Dual-Channel 5V Relay Module
Low-Level Trigger Relay
Trigger Voltage: 3.3V – 5V
Switching Capacity: 250V AC @ 10A, 30V DC @ 10A
Opto-Isolated for High Reliability
Built-in Back EMF Protection
Two LED Indicators for Relay Status
Availability: Order now from Circuit City BD