MAXBOTIX MB7138 XL-TrashSonar-WRM Ultrasonic Sensor maxbotix Sonar


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SKU: 7480
  1. Operating Voltage: 3-5.5 V
  2. Object Sensing Range: 0-350 cm
  3. Sonar Sensing Range: 20-350 cm
  4. Max. Sensing Range: 350 cm
  5. Read Rate: 6.67 Hz
  6. Frequency: 42 KHz
  7. Weather Resistant.
  8. IP67 Protection


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Brand: Maxbotix
Category: MAXBOTIX Ultrasonic Sonar
Tags: Maxbotix, Ultrasonic, Sensors, Robotic Sensors, Trash Sonar, Weather Resistant, XL-TrashSonar-WR

Maxbotix manufacture many sensors which can withstand harsh outdoor conditions. When dust, moisture, or harsh handling of the ultrasonic sensor is unavoidable, then this MAXBOTIX MB7138 XL-TrashSonar-WR Ultrasonic Sensor Trash Bin Measurement is ideal for your application.

This is a weather-resistant Maxbotix Ultrasonic Sensor that can be used in indoor as well as outdoor conditions. The XL-TrashSonar-WR sensor series provide users with robust rang information in the air. These sensors also feature high-power acoustic output along with real-time auto-calibration for changing conditions (supply voltage sag, acoustic noise, or electrical noise), operation with the supply voltage from 3.0V to 5.5V, object detection from 0-cm to 350-cm, and sonar range information from 20-cm out to 350-cm with 1-cm resolution. Objects from 0-cm to 20-cm typically range as 20-cm. It has a read rate of 6.7Hz.

Features of the weather-resistant MB7138, XL-TrashSonar-WR, include centimeter resolution, short to mid-distance detection, and various output options: pulse-width, analog voltage, and RS232 serial.

The MB7138 from the XL-TrashSonar-WR line of outdoor sensors is a rugged ultrasonic sensor component module. This sensor comes in a compact and robust PVC housing that meets the IP67 water intrusion standard and matches standard electrical 3/4‑inch PVC pipe fittings (this product has multiple housing options available).

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

In addition, the MB7138 offers virtually noise-free distance readings through the use of high-output acoustic power combined with continuously variable gain, real‑time background automatic calibration, real‑time waveform signature analysis, and noise rejection algorithms. This holds true even in the presence of many of the various acoustic or electrical noise sources.

Note: This module doesn’t come with F-option(equips chemically inert material’s covering to the sensor) or P-option(applies Parylene coating on the Aluminum transducer) protection. To buy MB7138 XL-TrashSonar-WR ultrasonic sensor with F-option or P-option please contact us at the support channel.

Full Horn Housing
Key Shot IGES File ACIS 7.0 File Solid Works Part
STL File STEP File Parasolid Part  

ROBU.IN is an official distributor of MaxBotix Ultrasonic Sensors in India. Check out our MaxBotix Ultrasonic Sensors now!

Features : 

  1. Read from all 3 sensor outputs: Analog Voltage, Pulse Width, RS232 serial
  2. Small, lightweight module
  3. Designed for easy integration into your project or product
  4. Real-time automatic calibration (voltage, humidity, ambient noise)
  5. Firmware filtering for better noise tolerance and clutter rejection
  6. Weather Resistant (IP67)
  7. 200,000+ Hours Mean Time Between Failure
  8. Matches standard electrical pipe fittings for easy mounting
  9. The mid-range, narrow detection zone
  10. Additional stability filter rejects occasional anomalous readings
  11. Detects the largest signal return in the field of view
  12. Uses the complete dynamic range of the sensor, if no large targets are present the sensor will select the next smallest target in view
  13. Can be used to range large objects behind small obstructions

Package Includes :

1 x MAXBOTIX MB7138 XL-TrashSonar-WR Ultrasonic Sensor Module

Useful Links:

Tutorials :

Sensor Selection, Setup, and Troubleshooting

Compatible Mounting Hardware:

MB7950 Mounting Hardware for Maxbotix Sonar Sensor



Operating Voltage (VDC)

3 ~ 5.5

Average Current Consumption (mA)


Frequency (Hz)



1 cm

Read Rate (Hz)


Operating Temperature (°C)

40 to 70

Max. Sensing Distance (cm)


Outer Diameter(mm)


Nut Size (mm)




Length (mm):


Weight (g):


Shipping Weight 0.055 kg
Shipping Dimensions 9 × 6 × 6 cm
6 Months Warranty

This item is covered with a supplier warranty of 6 months from the time of delivery against manufacturing defects only. This is a quality product from the original manufacturer. Only manufacturing defects are covered under this warranty. Reimbursement or replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: USA

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