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Wireless SAA-RTU Posted by Mine Design Technologies February 1st, 2016

Wireless Node – RTU for SAA Instruments

Model Number: NTX-WN-RTU-SAA-100

Wireless Node – RTU for SAA Instruments



  • Can monitor up to 4 Shape Accel Array (SAA) instruments from Measurand
  • Embedded intelligence samples the instruments and digitizes the signal prior to transmission
  • Data acquisition is completely wireless and battery-powered, with years of battery life
  • Extends the wireless network infrastructure coverage by relaying data from other wireless nodes
  • Provides both mobile access and backhaul routing functionalities

Features and Benefits

  • Plug and play compatible with up to 4 SAA
  • Up to 3 year battery life
  • Links with existing Measurand data processing software


  • Wireless monitoring of tunnel convergence
  • Slope stability monitoring sites with SAA installed for monitoring borehole deformations and slope slippage
  • Settlement profile monitoring applications


  • 902-928 MHz
  • RX sensitivity: -105 dBm
  • Typical omnidirectional range in underground mines: 50 m to 150 m
  • Typical omnidirectional range on surface: 50 m to 600 m
  • Connectivity: 4 Shape Accelerometer Arrays (SAA)
  • Battery life: typical = 3 years (depends on level of network activity), minimum = 1 year (standard warranty)