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Precision Ultrasonic Ranging Module for Industrial and Smart Applications
A12 Ultrasonic Distance Sensor - Narrow Beam Angle High-Accuracy Range Finder for 25-500cm Measurement
The A12 series sensor module uses ultrasonic sensing technology for accurate distance measurement across a 25-500cm range. Built with a high-performance processor and high-quality components, the module delivers stable, reliable operation and a long service life. It uses a waterproof ultrasonic transducer along with a built-in high-precision ranging algorithm and power management program, resulting in high ranging accuracy, low power consumption, a long measurement distance, and a narrow measurement angle.
The A12A series is well-suited for plane distance measurement, allowing targeted detection of flat objects at long range with small-angle precision, up to a maximum of 500cm. It also performs reliably for human-body distance measurement, offering sensitive and stable detection of the upper body within a 350cm range. With mm-level resolution, on-board temperature compensation, and multiple output interface options, the A12 module is designed for easy integration into robotics, automation, and smart-sensing projects.
Key Features
- Measurement Range: 25-500cm with mm-level resolution for precise distance detection
- Temperature Compensation: On-board auto-correction maintains stable ranging from -15 deg C to 60 deg C
- Ultrasonic Sensor: 40kHz frequency accurately measures distance to the target object
- Output Interfaces: Multiple options available, including PWM, UART, Switch, and RS-485
- Dead Band: 25cm minimum detection distance to prevent false readings
- Working Voltage: 3.3-24V, suited for a wide range of power systems
- Power Consumption: Standby current less than or equal to 5uA, working current less than or equal to 8mA (15mA for RS-485 variant)
- Measurement Accuracy: Plus or minus (1+S x 0.3%)cm, where S represents the measured distance
- Build Quality: Waterproof ultrasonic transducer with RoHS-approved components for a long service life
- Compact Design: Small, lightweight module built for easy integration into your project or product
Applications
- Waste Bin Fill Level Monitoring: Detects fill levels for smart waste management systems
- Smart Parking Systems: Senses vehicle presence and parking space occupancy accurately
- Robot Obstacle Avoidance: Enables real-time obstacle detection for automatic navigation and control
- Slow-Moving Target Detection: Well-suited for applications tracking gradual position changes
- Human Body Distance Detection: Stable sensing of upper body presence within a 350cm range
- Plane Object Distance Measurement: Long-range, small-angle detection for flat surface targets up to 500cm
