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4-20HR‑MaxSonar‑WR Products

MB7480 4-20HR-MaxSonar-WRI

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$189.95
10 - 49$179.95
For 34 Nps Wr Housing & 34 Nps Wrc Housing
QuantityCost Per Product
50 - 99$155.97
For 1 Bspp Housing & 1 Nps Housing
QuantityCost Per Product
50 - 99$157.47
For 30mm 1 5 Housing
QuantityCost Per Product
50 - 99$158.97

Product Description

The weather resistant 4-20HR‑MaxSonar‑WR is a rugged, ultrasonic sensor component module that features the industry standard 4-20mA analog current interface. This outdoor sensor provides very short- to long- distance detection and ranging in a compact, robust PVC housing. This 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 4‑20HR‑MaxSonar-WR sensors are factory calibrated to match narrow sensor beam patterns and provide reliable long-range detection zones.

The MB7480 4-20HR-MaxSonar-WR sensor has an inverted 4-20mA signal where 20mA signifies that the sensor is reporting the minimum reported distance and 4mA signifies the maximum reported distance for the sensor.

MB7360 is the non 4-20mA version of this sensor line.
MB7389 is the most likely version of this sensor.

Models with additional chemical resistance are available

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

Product Specifiations

  • Resolution of ~1.6mm
  • Analog current output of 4-20mA
  • 7.5Hz read rate
  • 42kHz ultrasonic sensor measures distance to objects
  • RoHS compliant
  • CE compliant
  • Internal or external temperature compensation
  • Virtually no sensor dead zone, objects closer than 50cm typically range as 50cm
  • Maximum Range of 5-meters (196 inches)
  • Operates from 10V-32VDC
  • <40mA 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
  • Base sensor that is great for application testing
  • 20mA is the minimum reported range and 4mA is maximum reported range
  • Retail Price Range: $199.95
  • Volume Pricing (100 or more units): Contact MaxBotix Inc.

Product Documentation

MB7480 Datasheet4-20HR-MaxSonar-WRI-datasheet
Sensor Selection GuideSensor Selection Guide
RoHS ConformityRoHS Declaration of Conformity
CE Declaration of ConformityCE Declaration of Conformity
Reliability DemonstrationMTBF Report
High Resolution PicturesHigh Resolution

Product 3D Models

1″ BSPP Housing
Keyshot FileIGES FileACIS 7.0 FileSolid Works Part
STL FileStep FileParaSolid File 
1″ NPS Housing
Keyshot FileIGES FileACIS 7.0 FileSolid Works Part
STL FileStep FileParaSolid File 
30mm 1.5 Housing
Keyshot FileIGES FileACIS 7.0 FileSolid Works Part
STL FileStep FileParaSolid File