Home > Products > SenSpot™ > Wireless Strain Gauge SenSpot™
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.
without battery replacement
1-µStrain resolution
self-adhesive(e.g. steel)/
flange-mount(e.g. concrete)
1 km fee space
easy to reuse in other places
record unusual strain event
High sampling rate instant data transmission triggered by strain spikes:
• A balance between power consumption and performance.
• Perfect for detecting event and recording the waveform of a sudden strain change.
• The triggering threshold is adjustable from 16µStrain to 512µStrain; the sampling rate can be changed from 10ms to 200ms
• 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
• 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 34mm (1.34”)
○ Strain Gauge sensor: 76.2mm (3”) x 33.4mm (1.30”) x 10mm (0.4”)
• Complementary data collected: temperature, battery voltage, etc.