Extensometers

Extensometers

Precision Elongation Measurement for Structural & Material Testing Applications

Proact IMS offers a high-performance range of Extensometers designed for accurate, real-time measurement of strain, displacement, and material elongation. Ideal for applications in geotechnical monitoring, civil infrastructure, and R&D labs, our extensometers deliver reliable data in both static and dynamic conditions, enabling engineers and researchers to track deformation trends and material behavior with confidence.

Available in mechanical, electronic, and vibrating wire formats, our extensometers are robustly built for long-term field deployment or high-resolution lab use.

• Types of Extensometers Offered

  Mechanical Extensometers

  • Rugged and reliable for long-term monitoring
  • Manual reading with scale or dial indicator
  • Ideal for dam, tunnel, and slope deformation checks

  Electrical Extensometers
  

  • Analog output (mV/V, 4–20mA) or digital (RS-485, Modbus)
  • Suitable for lab-based tensile, compression, and fatigue testing
    
• Key Specifications

  Specification	Range
  Gauge Length	50mm
  Accuracy	±0.3% F.S.
  Output Signal	Frequency, Voltage, Current
  Operating Temp Range	0°C to +40°C
  Housing	Stainless steel, epoxy-coated, IP67

• Applications

  Civil Engineering Structures

  • Crack growth monitoring in bridges, tunnels, dams, and retaining walls

  Material & Fatigue Testing

  • Strain measurement during tensile and compression tests
  • Axial and transverse deformation tracking

  Geotechnical Monitoring

  • Rock mass displacement in mines, slopes, and deep foundations
  • Borehole extensometers for layered soil deformation

   Oil & Gas Infrastructure

  • Pipeline stress monitoring, foundation deformation in hazardous zones

System Integration

• Compatible with Proact DAQ systems, vibrating wire readout units, and wireless loggers
• Easily synchronized with strain gauges, temperature sensors, and displacement transducers
• Custom mounting brackets, sensor rods, and cabling available

 Why Choose Proact IMS Extensometers?

• Available in field-ready and lab-specific models
• Long-term durability in harsh environments
• High-resolution output for real-time or periodic monitoring
• Complete support from installation to data logging
• Custom designs available for boreholes, anchor rods, and embedded structures