--- product_id: 142476770 title: "Ultrasonic Level Sensor | MB7389-131 HRXL-MaxSonar-WRMT | Weather Resistant |Resolution of 1-mm | MaxBotix Inc." brand: "maxbotix" price: "$5.31" currency: USD in_stock: false url: https://www.desertcart.us/products/142476770-ultrasonic-level-sensor-mb7389-131-hrxl-maxsonar-wrmt-weather-resistant store_origin: US region: United States of America --- # 1-mm Resolution IP68 Rated Weather Resistant Ultrasonic Level Sensor | MB7389-131 HRXL-MaxSonar-WRMT | Weather Resistant |Resolution of 1-mm | MaxBotix Inc. **Brand:** maxbotix **Price:** $5.31 **Availability:** ❌ Out of Stock ## Summary > 🌟 Elevate Your Measurement Game! ## Quick Answers - **What is this?** Ultrasonic Level Sensor | MB7389-131 HRXL-MaxSonar-WRMT | Weather Resistant |Resolution of 1-mm | MaxBotix Inc. by maxbotix - **How much does it cost?** $5.31 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/142476770-ultrasonic-level-sensor-mb7389-131-hrxl-maxsonar-wrmt-weather-resistant) ## Best For - maxbotix enthusiasts ## Why This Product - Trusted maxbotix brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Durable Design:** IP68 rated for ultimate protection against dust and long-term immersion. - β€’ **Weather Warrior:** Designed to thrive in harsh environments, ensuring reliable performance rain or shine. - β€’ **Factory Calibrated:** Ready to use right out of the box, minimizing setup time and maximizing efficiency. - β€’ **Precision Measurement:** Achieve unparalleled accuracy with a resolution of just 1 mm. - β€’ **Versatile Applications:** Perfect for bin and tank level measurement, making it a must-have for any industrial setup. ## Overview The MB7389-131 HRXL-MaxSonar-WRMT Ultrasonic Level Sensor is engineered for precision in bin and tank level measurement applications. With a remarkable 1-mm resolution and IP68 weather resistance, this sensor is factory calibrated for immediate use, ensuring durability and reliability in any environment. ## Description The weather-resistant MB7389 from the HRXL-MaxSonar-WR line of outdoor sensors is a rugged ultrasonic sensor component module. This sensor comes in a compact and robust PVC housing which meets the IP68 rating with our additional F-Option, P-Option, and wire attach. β˜… Featuring the F-Option - Provides additional protection necessary in a few hazardous chemical environments. Extremely corrosive gases or liquids can degrade or compromise the operation of the sensing unit. As a result, we offer a more chemically inert seal which allows our sensors to operate in all but the harshest of chemical environments. In addition to the chemical resistance, the sensor has improved performance in wet or dust environments.β˜… Featuring the P-Option - A parylene coating applied to the surface of the aluminum transducer. This helps to improve the corrosion resistance of the aluminum transducer. β˜… Featuring the Shielded Cable Wire Attach - For simple integration of our sensor into end-user applications. The Wire Attach Option allows the sensor's pin-out to be fully protected. It also includes 3ft (90cm) of wire. The MB7389 is designed to report the distance to the largest acoustic return while ignoring smaller targets. When targets are of similar amplitude reflections, preference is given to the closest target. This gives users the flexibility to consistently detect larger targets in the presence of clutter and noise. If the largest target is removed from the field of view, the MB7389 will switch to the target that gives the next largest detectable return. This filtering makes the MB7389 one of our most advanced sensors for outdoor tank and bin applications. Specs:β—† Our most advanced weather resistant, IP68 rated, ultrasonic sensorβ—† RoHS Compliantβ—† Virtually no sensor dead zone, objects closer than 30cm typically range as 30cmβ—† Operates from 2.7-5 ## Features - Used in Bin Level and Tank Level Measurement Applications - Factory calibrated beam width - IP68 Rated - Can withstand dust, dirt, and Protected from long term immersion. ## Images ![Ultrasonic Level Sensor | MB7389-131 HRXL-MaxSonar-WRMT | Weather Resistant |Resolution of 1-mm | MaxBotix Inc. - Image 1](https://m.media-amazon.com/images/I/71MpA93C80L.jpg) ![Ultrasonic Level Sensor | MB7389-131 HRXL-MaxSonar-WRMT | Weather Resistant |Resolution of 1-mm | MaxBotix Inc. - Image 2](https://m.media-amazon.com/images/I/51SuTyVamBL.jpg) ![Ultrasonic Level Sensor | MB7389-131 HRXL-MaxSonar-WRMT | Weather Resistant |Resolution of 1-mm | MaxBotix Inc. - Image 3](https://m.media-amazon.com/images/I/21JnmwEqPUL.jpg) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/142476770-ultrasonic-level-sensor-mb7389-131-hrxl-maxsonar-wrmt-weather-resistant](https://www.desertcart.us/products/142476770-ultrasonic-level-sensor-mb7389-131-hrxl-maxsonar-wrmt-weather-resistant) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-19*