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      • Load Cells and Force Sensors
        • Our Load Cells are designed and engineered using our proprietary thin film strain gauge process for greater stability and accuracy.

          Featured Micro Load Cell Sensors and Force Sensors

          S100 Load Cell

          S100 Load Cell

          S215 Load Cell

          S215 Miniature Load Cell

          S251 Load Cell

          S251 Miniature Platform Load Cell

          high range load cells

          S251 High Range Load Cells

          S256 Load Cell

          S256 Force Sensor

          Custom Load Cells

          Custom Load Cells

          View All Micro Load Cell Sensors and Force Sensors

          SMD low profile load cell and force sensor applications include weighing scales, non-invasive medical sensors, pharmaceutical testing, aerospace, and industrial measurements.

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      • Pressure Sensors
        • SMD pressure sensors provide superior performance in a wide range of applications such as medical devices.

          Featured Pressure Sensors

          B472 Pressure Sensors

          B472 Pressure Sensor

          P940 Pressure Sensors

          P940 Pressure Diaphragm

          P571 Pressure Sensors

          P571 Pressure Sensor for Transducers

          What are Non-Invasive Sensors?

          N350 - Noninvasive Pressure Sensor

          B472 Pressure Sensors

          B354 Pressure Sensor

          Custom Pressure Sensors

          Custom Occlusion Sensors

          Custom Occlusion Sensors

          View All Pressure Sensors

          With our proprietary process, SMD can craft standard and custom pressure sensor designs with short lead times using nearly any material including aluminum, stainless steel, Hastelloy™ and sapphire.

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      • Bubble Sensors
        • Air-In-Line Sensors feature non-invasive bubble sensing technology to accurately detect any object passing through the line. 

          Featured Bubble Sensors

          A810 Bubble Detector

          A330 Bubble Sensor Feature

          A330 Bubble Sensor

          A210 bubble detector abs low cost air in line sensor

          A210 Bubble Detector

          A630 Bubble Sensor Feature

          A630 Bubble Detector

          A410 Bubble Sensor

          A830 Bubble Sensor Feature

          A830 Bubble Detector

          Custom Bubble Sensors

          Custom Ultrasonic Bubble Sensors

          View All Bubble Sensors

          We manufacture an array of standard and custom non-invasive air-in-line sensors and air bubble detectors to fit your needs. Our proprietary digital “smart” circuits can be calibrated to detect bubbles in almost any fluid and tubing material.

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      • Scales
        • SMD’s Scales feature precise thin film strain gauge technology, rugged construction, splash resistance, RF immunity, and overload protection.

          Featured Scales

          medical hanging scale

          W300 Hanging Scale

          8 kg Scale

          W130 Medical Diagnostic Scale 8 kg

          9 kg Scale

          W140 Medical Diagnostic Reagent Scale 9 kg

          3 kg Scale

          W120 High Accuracy Reagent Scale 3 kg

          5 kg Scale

          W200 Semiconductor Gas Bottle Scale 5 kg

          2.8 kg Scale

          W110 Low Profile Bottle Scale 2.8 kg

          View All Scales

          Scales for applications like rugged medical reagent/waste with overload protection from side loads, tension and compression. Typical specialized requirements include small sizes, high temperature, low capacities, “Cenelec” dielectric, and overload protection. 

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      • Optical Sensors
        • SMD Sensors’ optical level switches provide an output that senses the presence or absence of fluid in a variety of tanks and vessels.

          Featured Optical Liquid Level Sensors

          OS2 Digital Optical Level Sensor

          OS3 Industrial Optical Level Switch

          OS4 Industrial Glass Optical Level Switch

          OS5 Basic Optical Liquid Level Switch

          OS6 POS Glass Tip Optical Sensor

          OS7 High Performance Optical Liquid Level

          View All Optical Liquid Level Sensors

          Compact and inexpensive solution for point level detection.Optical sensors offer reliability and cost-effectiveness solutions where precision is of greatest importance.

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      • Liquid Level Sensors
        • SMD offers off the shelf float switches and custom designed liquid level sensors – helping customers solve their toughest sensor and measurement problems.

          Featured Float Switches and Liquid Level Sensors

          Horizontal Liquid Level

          FH Horizontal Float Switches

          Vertical Liquid Level

          FS Vertical Float Switches

          FL50 Float Switch

          FL50 – Ultrasonic Liquid Level Sensor

          Multilevel Fluid Switch

          FM - Multi-Level Float Switches

          Custom Liquid Level Sensors

          Custom Level Sensors

          View All Float Switches and Liquid Level Sensors

          Vertically and horizontally mounted fluid switches and float switches, custom multilevel fluid switches, combination level and temperature sensors, ultrasonic liquid level sensors, and optical level sensors. We supply to a diverse range of industries.

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      • Capacitive Level Sensors
        • CQV Capacitive level sensors provide accurate, non-invasive, continuous liquid level measurement

          Featured Capacitive Level Sensors

          CQV-DEV Capacitive Level Sensor Development Kit

          Capacitative Sensors for Point Level Detection

          View All Capacitive Level Sensors

          Our capacitive level sensors are designed to be flexible and customizable.  Contact us today to discuss your application

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      • Custom Solutions
        • Approximately 90% of SMD products, across all our lines, are custom engineered to fit specific applications and aggressive cost targets.

          Featured Custom Solutions

          Custom Bubble Sensors

          Custom Ultrasonic Bubble Sensors

          Custom Liquid Level Sensors

          Custom Level Sensors

          Custom Pressure Sensors

          Custom Load Cells

          Custom Load Cells

          Custom Flow Meters

          Custom Flow Sensors

          Custom Occlusion Sensors

          Custom Occlusion Sensors

          Custom Scales

          Custom Scale

          integrated bubble and occlusion sensors

          Integrated Bubble and Occlusion Detecting

          View All Custom Solutions

          The majority of SMD products are custom designed sensors, meeting the more specialized needs of OEMs. Strain Measurement Devices’ unrivaled engineering team supports product design, shortens development cycles, and provides production engineered solutions for unique requirements and aggressive cost targets.

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      • Signal Conditioning
        •  SMD Sensors can customize a circuit board product for your needs.

          Featured Signal Conditioning

          usb and signal conditioner board for load and pressure sensors

          E370 DSC - USB Strain Module

          E110 Circuit

          E110 Signal Conditioner Board (I²C/VDC)

          E120 Circuit

          E120 Signal Conditioner Board (4-20 mA)

          View All Signal Conditioning

          We can offer almost any analog or digital protocol, including sensor I2C output, SPI, PWM, sensor USB output, 4-20mA load cell conditioning, 0-5V conditioning — along with wireless sensors utilizing Zigbee or Bluetooth.

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  • Applications
      • Featured Applications

        SMD Sensors features both standard and custom devices that solve almost any sensor need across all markets.

         

        Explore by Market or Product Line to discover how diverse applications are served by Strain Measurement Devices.

        View All Applications

      • Automatic IV Line Shutoff

        Automatic IV Line Shutoff

        Custom Bubble Sensor design in intravenous line applications for critical medical monitoring


        > Read More

        Subsea Transponder

        Subsea Transponder

        Industrial Water Application in need of a noncorrosive pressure sensor to measure water pressure in deep dives


        > Read More

        Directional Drilling

        Directional Drilling

        Custom designed Pressure sensor, fitted with a unique cable lead out and connector system in Oil and Gas application


        > Read More

        Birthing Simulator

        Birthing Simulator

        Medical application, in training of medical staff using a standard sensor to monitor force of touch when dealing with newborns


        > Read More

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  • Resources
      • SMD Sensors have provided Resources like Technical Notes, Calculators, & Glossaries for you to better find the sensor that is perfect for your application solutions.
        • Technical NotesTechnical Notes
        • CalculatorsCalculators
        • Video LibraryVideo Library
        • FAQFAQs
      • From Our Blog

        How SMD’s Combination Level/Temperature Switches Ensure Safety in a 7-Story Hydraulic Elevator

        February 27, 2025
        When it comes to hydraulic elevators, safety and reliability are paramount. A recent installation of SMD’s combination level/temperature switches in a 7-story hydraulic elevator in Missouri highlights how our technology is transforming elevator operations. Here’s a closer look at this …

        Material Selection and Chemical Resistance: A Guide to Choosing the Right Sensor Materials

        January 16, 2025
        Selecting the right sensor materials is crucial to ensuring durability, performance, and chemical resistance in various applications. Whether you’re dealing with industrial process, medical equipment, or harsh environments, choosing the right sensor materials can make or break your project’s success. …
        More from Our Blog
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  • About Us
      • Custom Engineering & Design
        • Strain Measurement Devices is a world leader in specialty sensor designs. Supplying leading edge sensor technology offering superior stability, temperature performance, lower power consumption, and flexibility of design.

          Custom Engineering

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      • Investment & Growth Strategies
        • Strain Measurement Devices is dedicated to development and research ensuring continuous improvements to our sensors and manufacturing processes. The company's engineering and development staff supports product design, shorten development cycles, and provide production-engineered solutions.

          growth

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      • Approvals & Certifications
        • Through dedicated employees and quick-turn engineering support we provide superior products and services which consistently meet or exceed our customers' expectations. ISO Certifications IPC620 trained

          Certification

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      • Our Facilities
          • Our Green Facility & Environmental and Social Responsibility

            Our Facility

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      • Careers
        • Strain Measurement Devices is a growing engineering company constantly looking for talented individuals for a number of opportunities

          Inside our production facility

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      • News
          • Latest information and news briefs about Strain Measurement Devices

          • Recent News

            Medical Technology Magazine

            July 12, 2018

            “Medical Technology brings you the latest news and insights from the medical device industry in a stunning, interactive format, supported by market analysis and data from research specialist GlobalData. Published bi-monthly and free to read on all devices, this digital magazine …

            Verdict Medical Devices

            November 10, 2017

            Monitoring Solutions and Measuring Components for Medical Devices. View our company write up on Verdict Medical that offers a quick insight into Strain Measurement Devices’ product lines   Verdict Medical Devices

            More News
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      • Events
          • SMD Sensors attends multiple events every year, predominantly trade shows for Markets like Medical instrumentation. Find us at an event near you!

          • Upcoming Events

            • MEDevice Boston 2025

              September 30 - October 1 at Boston Convention & Exhibition Center
            • MD&M Midwest 2025

              October 21 - October 22 at Minneapolis Convention Center

            All Events

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  • Contact Us

Load Cell Troubleshooting Guide

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  2. Resources
  3. Technical Notes
  4. Load Cell Troubleshooting Guide

Download Resource File: Troubleshooting Guide 3

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Strain Measurement Devices

SMD supplies leading edge sensor technology offering superior stability, temperature performance, lower power consumption, and flexibility of design. The company’s engineering and development staff support product design, shorten development cycles, and provide production-engineered solutions.

Contact us now with your application and let SMD go to work for you!

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