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SCXL-MaxSonar-WRST7 (MB7574)
The MB7574 SCXL-MaxSonar-WRST7 is a weather-resistant ultrasonic distance sensor designed for outdoor use. It provides millimetre-resolution measurements fro...
The MB7574 SCXL-MaxSonar-WRST7 is a weather-resistant ultrasonic distance sensor designed for outdoor use. It provides millimetre-resolution measurements from 500mm to 5000mm with a 0.58Hz read rate, and includes three output options: analog voltage, TTL serial, and pulse-width.
Housed in a compact IP67-rated PVC enclosure compatible with standard 3/4-inch PVC pipe fittings, the sensor features a self-cleaning transducer to reduce the impact of condensation and frost. Internal temperature compensation and real-time automatic calibration ensure accurate readings across varying environmental conditions.
Key Features
- Weather Resistant (IP67) – Rugged PVC housing suitable for outdoor and high-moisture environments
- Self-Cleaning Transducer – Reduces impact of condensation, frost, and debris
- 1mm Resolution – High-precision distance measurements with rate-limiting filter
- Three Output Modes – Analog voltage, TTL serial, and pulse-width
- Internal Temperature Compensation – Accurate readings without external calibration
- Real-Time Automatic Calibration – Compensates for voltage, humidity, and ambient noise
- Advanced Noise Rejection – Waveform signature analysis and continuously variable gain for clean readings
- Narrow Beam Pattern – Factory calibrated for long-range, focused detection
Specifications
- Model: MB7574 SCXL-MaxSonar-WRST7
- Range: 500mm to 5000mm
- Resolution: 1mm
- Read Rate: 0.58Hz
- Frequency: 42kHz ultrasonic
- Supply Voltage: 2.7–5.5V
- Current Draw: 68mA average
- Outputs: Analog voltage, TTL serial, pulse-width
- Operating Temperature: -40°C to +65°C
- Ingress Protection: IP67
- Housing: PVC, compatible with 3/4" pipe fittings
- Compliance: RoHS
Ideal For
- Snow depth and water level measurement
- Weather station monitoring
- Outdoor distance sensing and object detection
- Industrial and environmental monitoring
Package Contents
- 1× MB7574 SCXL-MaxSonar-WRST7 Ultrasonic Sensor
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- IP67
- An ingress protection rating meaning the enclosure is dust-tight and can survive temporary immersion in water under specified test conditions. This matters when choosing a sensor for outdoor, wet, or wash-down environments.
- Temperature compensation
- Temperature compensation means the sensor adjusts its readings to reduce errors caused by changes in water temperature. This matters for field monitoring because ponds, rivers, and tanks can vary in temperature throughout the day and across seasons.
- TTL serial
- A simple serial data connection that uses microcontroller logic-level signals rather than computer RS-232 voltage levels. It matters because the camera can connect directly to many microcontroller pins or a USB-to-TTL serial adapter, but not safely to an old-style RS-232 port without conversion.
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Sensors & Input
Supplier page — dfrobot.com
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