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Sensor Interface / Crack Sensor Node

Crack Sensor Node

The Crack Sensor Node is used to monitor structural movement including pile separation, crack movement and expansion joint movement.

The Crack Sensor Node interfaces to a linear displacement sensor. It's high precision sampling circuit powers the sensor and reports its measurements through Senceive’s wireless communications network to a Gateway. It has been successfully used in many applications, including those measuring:

  • Crack movement
  • Pile separation
  • Structural movement
  • Expansion joint monitoring
Crack sensor node
Crack sensor node
Crack sensor node
Crack sensor node
Crack sensor node
Crack sensor node
Crack sensor node
Crack Sensor Node | Senceive
Crack sensor node
Crack sensor node
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  • Waterproof, robust connectors for simple installation
  • Automatic sensor type detection
  • Extremely low noise performance
  • 16-bit resolution (65,536 steps over the full scale)
  • Integrated long life battery
  • 12-15 years’ battery life
  • Internal temperature sensor
  • One and two channel variants offered as standard
  • Waterproof to IP66 / IP67 / IP68
  • Variety of fixings available for easy installation on site

FlatMesh Crack Sensor Node - FM3N-CS

GeoWAN Crack Sensor Node - LR3N-CS


FlatMesh Physical Specifications 

Parameter FM3N-CS/CS2
* Approximate values only
Dimensions excluding antenna and vent 90 x 90 x 60 mm
Dimensions excluding antenna

90 x 96 x 60 mm (including vent)

Total Mass 0.5 kg*
Housing Material Die cast aluminium
Protection (BS EN 60529: 1992 + A2: 2013) IP66 / IP67

IP68 at 1m for 24 hours

Includes connectors while unmated

Mounting Options Clearance holes for M4 socket head screw in bottom

M4 blind holes in side

Plates and brackets available for magnetic fixing, track bed, stake and pole mounting, and many other applications

Operating Temperature Range -40°C to +85°C

Crack Sensor Interface

Parameter Value
Circuit Topology Voltage divider
Stimulus 2.5V, 100mA max
Resolution 0.0015% of full scale
Noise Level 0.005% of full scale (typical peak to peak)


Data Sheets
Get in Touch

For more information on our Crack Sensor Node, call +44 (0) 207 731 8269 or email