MaxBotix MB7354 HRXL-MaxSonar-WRS5 High Resolution Ultrasonic Snow Depth Sensor - IP67 Weather Resistant, 3/4" NPTS Mount, Analog/PW/RS232 Output

The MB7354 provides three simultaneous outputs: Analog Voltage (scaled with distance), Pulse Width (width proportional to distance), and RS232 Serial (ASCII characters). You use the output that best suits your data acquisition system. The analog and PWM outputs are always active, while the serial output transmits data continuously at 9600 baud, N,8,1 format. No manual selection is required; all outputs are live.

The sensor body features a standard 3/4-inch National Pipe Thread Straight (NPTS) external thread. This allows for direct installation into a compatible 3/4-inch female NPT or PVC pipe fitting. Ensure the mating fitting is properly sealed to maintain the IP67 rating. The thread design is for mechanical mounting and does not provide pressure sealing for pressurized vessels.

The sensor has a minimum detectable distance of 500mm (0.5m) and a maximum range of 5000mm (5m). Performance at the minimum range is limited by the sensor's blanking distance. At the maximum range, accuracy can be affected by target size, reflectivity, and environmental conditions like temperature extremes or high humidity. The internal temperature compensation helps mitigate some of these effects.

Yes, the MB7354 is specifically designed for such applications. Its operating temperature range is -40°C to +65°C, and its IP67 rating protects it from moisture and ice. The 42kHz frequency, narrow beam, and advanced filtering algorithms (like a maximum filter change rate of 7mm/s) help it distinguish a stable snow surface from falling snowflakes, making it a recommended choice for snow depth monitoring.