Home > Products > SenSpot™ > Wireless Crack Meter SenSpot™
Resensys Wireless Displacement/Crackmeter SenSpot™ provides an easy to install, scalable solution for distributed structural integrity monitoring of cracks, expansion joints, and much more. Resensys SenSpot™ technology offers a high performance method for large-scale sensing, wireless synchronization, and ultra-energy efficient wireless communication.
SenSpot™ is designed to operate maintenance-free for over a decade. Once installed, it does not require calibration, battery replacement, or any other maintenance throughout its entire service life. Due to its small size and light weight, the adhesive-mount wireless crack detection sensors can be easily applied to multiple critical spots on a structure with minimal installation effort. Wireless crack monitoring gauge sensors are ideal for monitoring the progression of existing cracks in a structure. The device features a sliding element that moves in response to structural displacement or crack growth.
without battery replacement
0.01 mm or 0.4 mil resolution
self-adhesive(e.g. steel)/
flange-mount(e.g. concrete)
1 km free space
easy to reuse in other places
-40 to +65°C (-40 °F to +150°F)
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Long battery life (10+ years)
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Wireless communication (IEEE 802.15.4)
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Lightweight (235g)
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High resolution displacement measurement
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Adjustable transmission interval
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Monitors expansion joints, bridge bearings, and crack width on structures
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Assess activity and propagation of existing cracks
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Ensure structural integrity of bridges, buildings, dams, tunnels etc.
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Monitors movement in timber structures and bridges
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Monitors Wind Turbine tower foundation integrity
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Monitor structural integrity for Storage Tanks & Silos
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Monitors railway track alignment and infrastructure stability
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Assess wall stability and identify potential risks in Retaining wall
• 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.)
• Displacement sensing element: 100 g (3.5 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: 0.01 mm or 0.4 mil 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”)
○ Crack Meter Sensor: 79/104/129/154mm (1/2/3/4”) x 22mm (0.9”) x 22mm (0.9”)
• Complementary data collected: temperature, battery voltage, etc.