MB7460 4-20HR-MaxSonar-WR

High Performance Ultrasonic Precision Rangefinder

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.

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 ~1.6mm
  • 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
  • 4mA is the minimum reported range and 20mA is maximum reported range
  • Retail Price Range: $199.95
  • Volume Pricing (100 or more units): Contact MaxBotix Inc.

Product Documentation

Documents and Downloads

MB7460 Datasheet 4-20HR-MaxSonar-WR-datasheet
Sensor Selection Guide Sensor Selection Guide
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

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 4 6 0 1 0 0
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
MB7460-100 MB7460-101 MB7460-110 MB7460-111
MB7460-120 MB7460-121 MB7460-130 MB7460-131
MB7460-200 MB7460-201 MB7460-210 MB7460-211
MB7460-220 MB7460-221 MB7460-230 MB7460-231
MB7460-500 MB7460-501 MB7460-510 MB7460-511
MB7460-520 MB7460-521 MB7460-530 MB7460-531
MB7460-600 MB7460-601 MB7460-610 MB7460-611
MB7460-620 MB7460-621 MB7460-630 MB7460-631
MB7460-700 MB7460-701 MB7460-710 MB7460-711
MB7460-720 MB7460-721 MB7460-730 MB7460-731


The legacy part number MB7467 is now contained within MB7460 which is the base for all housing options on this product. To select a product with a legacy part number, select the desired housing option on the product with the appropriate base. Please review the following table for more information.

Legacy Part Number Base and Housing Active Part Number
MB7467 – Compact MB7460 in 3/4″ NPS WRC Housing MB7460-2XX
MB7467 – 1″ NPS MB7460 in 1″ NPS Housing MB7460-5XX
MB7467 – 1″ BSPP MB7460 in 1″ BSPP Housing MB7460-6XX
MB7467 – 30mm1.5 MB7460 in 30MM 1.5 Housing MB7460-7XX