Submersible Tiltmeter (MEMS)


RST’s Submersible Tiltmeters measure tilt in two axial planes perpendicular gravity vector. The tiltmeter is intended to be permanently installed to provide long term observation with maximum resolution and sensitivity, and conveniently accommodates for manual monitoring or remote data acquisition.


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Product Features

  • Biaxial sensors
  • Easy to install adjustable mounting bracket
  • Cost effective
  • Data logger and/or manual readout compatible
  • Submersible


The system consists of an adjustable universal mounting bracket that can be installed vertically, horizontally, or at an angle, an interconnecting cable, and a data logger or readout instrument. The housing is IP68 rated up to 2 MPa. for maximum resistance against water ingress. The cables are securely encapsulated inside the housing with water-proof connectors to provide watertight performance at depths up to 200 meters submersion. Bussed and non-bussed versions are available to accommodate daisy chained and single point installations.

Tiltmeter / Submersible Tiltmeter (MEMS) Specifications

Range ±30°
Resolution ±0.0002° (0.004 mm/m)¹
Sensor Precision ±0.0013° (0.02 mm/m)¹
Sensor Precision ±0.0005°(0.01 mm/m)²
Sensor 24hr Stability ±0.03 mm/m¹
Sensor 24hr Stability ±0.01 mm/m²
Sensor MEMS Accelerometer
Temperature Dependent Uncertainty ±0.016 mm/m/°C (±0.001°/°C), for ±5° from vertical
Temperature Dependent Uncertainty ±0.033 mm/m/°C (±0.002°/°C), for ±15° from vertical
Temperature Accuracy ±0.5 °C (0 °C to 60 °C)
Temperature Accuracy ±1.0 °C (-40 °C to 60 °C)
Temperature Resolution 0.06 °C
Operating Temperature -40 to 60 °C (-40 to 140°F)
Dimensions ø28.6mm x 211mm (ø1.125” x 8.31”)

¹: 99% Confidence Interval

²: 68% Confidence Interval

Tiltmeters are commonly used for:

  • Monitoring of tilt of retaining and building walls
  • Tilt of concrete dams
  • Structural load testing
  • Landslide Monitoring
  • Building safety along adjacent excavations
  • Applications where the failure mode is expected to have a rotational component
  • Observation of benches and berms in open-pit mines
  • Bridge pier monitoring
  • Ground subsidence
  • Installation of submerged pipelines
  • Various horizontal, vertical applications

Tiltmeter / Submersible Tiltmeter (MEMS) Ordering Info


MEMS Biaxial Tiltmeter-digital non-bussed -5m
(bare leads)
MEMS Biaxial Tiltmeter-digital non-bussed-10m
(bare leads)
MEMS Biaxial Tiltmeter-digital non-bussed-15m
(bare leads)
MEMS Biaxial Tiltmeter-digital non-bussed-20m
(bare leads)
MEMS Biaxial Tiltmeter-digital non-bussed-25m
(bare leads)
MEMS Biaxial Tiltmeter-digital non-bussed-Xm
(bare leads) Vertical surfaces only
Custom cable lengths available on request



MEMS Biaxial Tiltmeter-digital bussed-3m
IC8160/IC8160-V (vertical surfaces only)



Universal Bracket for MEMS Biaxial Tiltmeter IC8180
Protective Cover for MEMS Biaxial Tiltmeter IC8185


Readouts & Data Loggers

Rugged Handheld PC IC32000-NAUTIZ
Digital Interface for Rugged Handheld PC with software ELGL4010
RSTAR DT2485 DT-BUS Data Logger DT2485
FlexDAQ Dataloggers and RSTAR Affinity Wireless Data Logger System



IC8060 End of Chain Dummy Plug
IC8085 Extension Cable-5m Sensor to Sensor (Bussed)
IC8051 Communication Cable to Logger-5m
IC8052 Communication Cable to Logger-10m
IC8053 Communication Cable to Logger-20m
IC8050 Communication Cable to Logger-Custom Length

File Name

Submersible Tiltmeter (MEMS)

Resource Type

Language Version Download
English ICB0075

File Name

Submersible Tiltmeter (MEMS) Installation and User Manual

Resource Type

Language Version Download
English ICM0101B

Speak with an Expert

I’m very happy with the quality of the instrumentation and technical support from RST, as always. They worked with us from the initial stages of the project to ensure that we were fully prepared and equipped to use the RSTAR network for the first time. They delivered everything within the tight project time frame to ensure that there were no delays on site, and the submersible tilt meters looked like new even after over twelve months of being submerged in Thames water!
-Richard Lipscombe, BEng (Hons), Director & Principle Consultant - RL Geotechnical Ltd