Wireless Strain Gauge SenSpot™ Sensor


Wireless Strain SenSpot™ sensors offer a breakthrough technology for real-time and long-term structural health monitoring.  SenSpot™ strain gauge uses Resensys’s proprietary sensing, scheduling and ultra-low power synchronization technology. SenSpot™ is designed to operate maintenance-free for more than a decade. After installation, SenSpot™ does not need calibration, battery replacement, or any other maintenance during its entire service life.

  • Long lifetime: (minimum expected life without battery replacement 10 years)
  • Lightweight: about 147 g (5.19 oz.)
  • Wireless transmitter: 120 g (4.23 oz.)
  • Cable (1ft): 10 g (0.35oz.)
  • Strain sensing element: 17 g (0.6 oz.)
  • Easy mounting
    • Self-adhesive, no drilling is required (e.g. steel)
    • Flange-mount, drilling is required (e.g. concrete)
    • Quick installation, 1-2 minutes
  • High accuracy: 1-µStrain resolution
  • Wide working temperature: -40 to +65°C (-40 °F to +150°F)
  • Long communication range: 1.0km free space
  • Small size:
    • Wireless transmitter: 50mm (1.96”) x 50mm (1.96”) x 50mm (1.34”)
    • Strain Gauge sensor: 110mm (4.30”) x 33mm (1.30”) x 9mm (0.35”)
  • Complementary sensing: temperature, battery voltage, etc.
  • Long- term and continuous monitoring of strain (stress)
  • Detecting short-lived and transient high-strain events, e.g., caused by fast moving trucks on highway bridges or by turbulence on airframes
  • Fatigue awareness, fatigue life analysis (remaining useful life estimation)
  • Fast, easy-to-install adhesive mount
  • Examples applications:
    • Highway bridges
    • Airframes
    • Pipelines
    • Machines, cranes, etc.
    • Truck tests, bridge load rating