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XL‑MaxSonar‑WR Products

MB7051 XL-MaxSonar-WRML

High Performance Ultrasonic Precision Rangefinder


F-Option for Chemical Resistance * – optional

P-Option for Corrosion Resistance * – optional

Shielded Cable Attach Option *
(per each) – optional

Additional Wire Length – optional

(1ft = 1 Qty)

Grand total:
Quantities > 25 may delay ship date up to 1 week.
Options with * may delay ship date up to 2 weeks.
Applicable for all variations of this product
QuantityCost Per Product
5 - 9$144.95
10 - 49$139.95
50 - 99$107.51

Product Description

The XL-MaxSonar-WRML only reports the range to the target with the largest acoustic return to a maximum distance of 10 meters. This ultrasonic sensor provides a very robust long range sensing solution. The increased sensitivity of the XL-MaxSonar-WRML is ideal for applications requiring small or soft target detection range at longer ranges than our other XL-MaxSonar-WR sensors. This is our most sensitive ultrasonic sensor in the XL-MaxSonar-WR line of sensors and is designed for pencil beam applications >10º, environments with acoustic and electrical noise, people detection, soft targets, bin level measurement, and tank level measurement.

The XL-MaxSonar-WRML has improved sensitivity to objects with the addition of a horn extension. This improvement results in the sensor detecting objects of a similar size about 2.5 times further compared to the MB7066 sensor. The detection patterns of each sensor are shown in the beam pattern section of the datasheet.

The weather resistant XL-MaxSonar-WRML 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.

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 XL‑MaxSonar-WR sensors are factory calibrated to match narrow sensor beam patterns and provide reliable long range detection zones.

Product Specifiations

  • Resolution of 1 cm
  • 5.1Hz read rate
  • 42kHz Ultrasonic sensor measures distance to objects
  • RoHS Compliant
  • Read from all 3 select sensor outputs: Analog Voltage, Serial, Pulse Width
  • Operates from 3.0-5.5V
  • Low 3.4mA average current requirement
  • Small, light weight module
  • Designed for easy integration into your project or product
  • Operational Temperature from -40˚C to +70˚C (-40˚F to +160˚F)
  • Real-time automatic calibration (voltage, humidity, ambient noise)
  • Firmware filtering for better noise tolerance and clutter rejection
  • 200,000+ Hours Mean Time Between Failure
  • Weather Resistant (IP67), optional Chemical Resistant F-Option
  • Matches standard electrical 3/4-inch PVC pipe fittings for easy mounting (3/4″ National Pipe Thread Straight)
  • Our most advanced weather resistant, ultrasonic sensor
  • Additional stability filter rejects occasional anomalous readings
  • Detects the largest signal return in the field of view
  • Uses the complete dynamic range of the sensor, if no large targets are present the sensor will select the next smallest target in view
  • Can be used to range large objects behind small obstructions
  • Maximum range of 1065 cm (419 inches)
  • Long range, narrow detection zone
  • Pencil beam applications with a detection zone less than 10º
  • Volume Pricing (100 or more units): Contact MaxBotix Inc.

Product Documentation

Documents and Downloads

MB7051 DatasheetXL-MaxSonar-WRML-datasheet
Sensor Selection GuideSensor Selection Guide
XLWR Chaining NotesXL-MaxSonar-WR Chaining
RoHS ConformityRoHS Declaration of Conformity
CE Declaration of ConformityCE Declaration of Conformity
Reliability DemonstrationMTBF Report
High Resolution PicturesHigh Resolution
Product 3D Models
No 3D models are available at this time

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.

Housing Style
0Not Applicable
13/4″ NPS WR
23/4″ NPS WRC
3Ultra Compact
4Ultra Compact Flush Mount
51″ NPS
61″ BSPP
730MM 1.5
8Extended Horn
Options Selected
0No Options (Bagged)
3F-Option and P-Option
4No Options (Trayed)
5TTL (Bagged)
6TTL (Trayed)
Wire Attach
0No Wire Attach
1Wire Attached

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

Active Part Numbers