MB7344 HRXL-MaxSonar-WRST4

High Performance Ultrasonic Precision Rangefinder

Product Description

The weather resistant HRXL-MaxSonar-WR is a rugged, ultrasonic sensor component module. This outdoor sensor provides very short- to long- distance detection and ranging in a compact, robust PVC housing. The ultrasonic sensor meets the IP67 water intrusion standard and matches standard electrical 3/4‑inch PVC pipe fittings.

The MB7344 HRXL-MaxSonar-WRS is a cost-effective, rugged ultrasonic snow-depth sensor that is designed for reliable snow-depth measurement. The MB7344 has an internal filter that will reset to targets that are considered valid outside of a 2% distance to target window. This makes the sensor ideal for targets that occasionally move rapidly. The sensor accurately applies temperature compensation to every reading, using either the integrated temperature sensor or the optional external temperature sensor (HR-MaxTemp).

High-output, acoustic power, combined with continuously variable gain, real‑time background automatic calibration, real‑time waveform signature analysis, and noise rejection algorithms results in virtually noise free distance readings. This holds true even in the presence of many of the various acoustic or electrical noise sources. The HRXL‑MaxSonar-WR sensors are factory calibrated to match narrow sensor beam patterns and provide reliable long-range detection zones.

MB7334 is the RS232 version of this sensor.

Models with additional chemical resistance are available

The F-Option (IP-68) design modification provides our weather resistant sensors with extra protection against corrosive chemical environments. Ask for the F-Option (IP-68) when ordering.

Product Specifications

  • Resolution of 1-mm
  • 6Hz read rate
  • Internal temperature compensation
  • 42kHz ultrasonic sensor measures distance to objects
  • RoHS Compliant
  • Read from all 3 sensor outputs: Analog Voltage, Serial, Pulse Width
  • Virtually no sensor dead zone, objects closer than 50cm range as 50cm
  • Maximum Range of 5-meters (196 inches)
  • Operates from 2.7-5.5V
  • Low 3.1mA average current requirement
  • Small, light weight module
  • Designed for easy integration into your project or product
  • Operational temperature -40°C to +65°C (-40°F to +149°F)
  • Real-time automatic calibration (voltage, humidity, and ambient noise)
  • Firmware filtering for excellent noise tolerance and clutter rejection
  • Weather resistant (IP67), optional chemical resistant F-Option
  • Matches standard electrical 3/4-inch PVC pipe fittings for easy mounting (3/4-inch National Pipe Thread Straight)
  • Long, narrow detection zone
  • TTL Serial Output
  • Recommended for snow level measurement
  • Recommended for weather station monitoring
  • Great for applications with slow moving targets
  • Maximum range of 5 meters (196 inches)
  • Volume Pricing (100 or more units): Contact MaxBotix Inc.

Product Documentation

Documents and Downloads

MB7344 Datasheet HRXL-MaxSonar-WRST4-datasheet
Sensor Selection Guide Sensor Selection Guide
Snow Sensor Mounting Recommended mounting guide
HRXLChaining Notes HRXL-MaxSonar-WR Chaining
RoHS Conformity RoHS Declaration of Conformity
CE Declaration of Conformity CE Declaration of Conformity
Reliability Demonstration MTBF Report
High Resolution Pictures High Resolution Pictures.zip
Product 3D Models
Key Shot IGES File ACIS 7.0 File Solid Works Part
STL File STEP File ParaSolid Part  

Part Numbers

All part numbers are a combination of a six-character base followed by a dash and a three-digit product code. Please review the following table for more information on the three-digit product code.

M B 7 3 4 4 1 0 0
Base
Housing Style
0 Not Applicable
1 3/4″ NPS WR
2 3/4″ NPS WRC
3 Ultra Compact
4 Ultra Compact Flush Mount
5 1″ NPS
6 1″ BSPP
7 30MM 1.5
8 Extended Horn
Options Selected
0 No Options (Bagged)
1 F-Option
2 P-Option
3 F-Option and P-Option
4 No Options (Trayed)
5 TTL (Bagged)
6 TTL (Trayed)
Wire Attach
0 No Wire Attach
1 Wire Attached

The following table displays all of the active and valid part numbers for this product.

Active Part Numbers
MB7344-100 MB7344-101 MB7344-110 MB7344-111
MB7344-120 MB7344-121 MB7344-130 MB7344-131
MB7344-800 MB7344-801 MB7344-810 MB7344-811
MB7344-820 MB7344-821 MB7344-830 MB7344-831