2-Axis Compact Inclination Sensor Module

Cost Effective

Product overview - DWL4200XY


  • Measuring range from 0° ~ ±90° (Single-Axis); 0° ~ ±15° (Dual-Axis)
  • Resolution of 0.01° (0.2mm/M) (0.002 in/feet)
  • Accuracy: ± 0.02°(0.4mm/M) at 0° to ±2.00°; ± 0.04° (0.8mm/M) at other angles
  • Repeatability: 0.01° (0.2mm/M or 0.002in/ft)
  • Vibration (Relative g): 1
  • Respond time: 100ms
  • Power Supply: 9-30V DC
  • IO Communication: RS485
  • Material: Zinc Alloy
  • Waterproof Rating: IP65
  • Operating Tempeature: -40°C ~ +85°C
  • Size: 67mm (L) X 42mm (W) X 23mm (H)
  • 3 meters DB9 cable is included for each sensor module.



    Precision levelling and tilt angles measurement essentially involve simultaneous 2-dimensional planes rather than conventionally known as two independent single-axis. Digi-Pas® 2-axis intelligent inclination modules having high precision and wide measurement range are capable of providing real-time levelling, angular & vibration readings that empower application engineers to continuously measure and monitor machine/equipment/structure angular positional status precisely and speedily.

    These small footprint, 2-axis and high shock resistant MEMS driven inclination sensor modules effectively eliminate limitations associated with using multiple single-axis sensors or bulky pendulum/servo-based sensors to achieve precise 2D levelling and planar angular measurements. MEMS sensor contents no moving part, essentially requires little/no maintanance when compared to pendulum-based sensor.


    Precision machines/equipment performances are sensitive to its own frame/structure vibration. Unleveled machine footings is one definitive source enabling additional vibrations during machine is in running mode. For examples, (i) blur images in image/optical capturing machines (such as CMM, CT Scan & MRI) deteriorate measurement accuracy, (ii) Vibration causes CNC machines reduces production output yield. Typical machine's structural/frame vibrations are low frequencies. It is therefore vital to measure machine's vibration frequency and magnitude during machine running to manage its accuracy performances.

    PC Sync PRO software can capture vibration patterns from Sensor module and real-time display on PC screen in graphical format. User may choose to save vibration data in Excel file for further analysis.


    Digi-Pas® 2-axis inclination sensor module system (Sensor Module + Control Box + PC Sync Pro Software) is designed as a DEVELOPMENT KIT for application engineers who explore to integrate sonsor modules into precision machine/equipment/structure enabling them to instantly access angular positional readings and store data in Excel format, without the need for tedious and time-consuming programming.

    The angular measurement system enables user-defined settings to activate/control any external connected peripheral devices at ease (see below suggested diagram).

    Alternatively, highly experienced engineers/experts in sensors applications may use own Low-level Programming codes to directly extract measurement readings from sensor module(s) WITHOUT the need for using Control box and PC Sync Software (i.e. Development Kits). Users also may download Digi-Pas Dynamic-Link Library to integrate with your own higher level programming codes to access sensor via Control Box. However, we strongly recommend FIRST-TIME user of the sensor module to utilize the development kit. Once familiarized the system, users may proceed to remove the development kit leaving the sonsor(s) directly connected to user's application codings and user's own hardware system.


    DWL-4200xy Series Inclination Sensor Modules accuracy is verified by accredited 3rd party independent calibration & test bodies and National Metrology Centre traceable to SI standard and NIST, JIS, UKAS & DIN under CIPM MRA.

Application diagram:

Application diagram 1 - Multiple Sensor Modules

Application diagram 2 - Single Sensor Module



    Measuring resolution of 0.01° with Accuracy ± 0.01° (175µm/m) at 0° ~ ±2.00°; ±0.03° at other angles


    Single Axis measuring range 0° ~ ±90°
    Dual Axis measuring range 0° ~ ±15°


    Enable user to measure relative angles at a common plane with respect to a reference angle. The reference angle can be set using alternate zero feature.


    The sensor module is waterproof rated and enable to be located in harsh working environment.


    Easy self-calibration feature allows user to reset the digital level back to factory preset accuracy.


    USB connection for remote acquisition, monitoring, data logging & analysis in computer.


    Enable basic features of remote data acquisition on Angular Measurements.


    Wireless connection (Bluetooth industrial class 1) to device for remote monitoring, data logging & analysis from computer. (PRO PC sync software is required)


    Enable advance features to set parameters and triggering relay outputs for remote data acquisition, logging, processing, analysis on angular measurements and control output of peripheral devices.


Precision levelling and angle measurement/alignment tasks essentially involve surface planes that demand for 2-dimensional solution rather than the outdated single-axis 'bubble' vial method that indicates 'bubble' leveling status 'one axis at a time'.

Digi-Pas® 2-axis precision digital level simultaneous displays of two-dimensional plane angles, effectively simplifying and resolve the hurdles of taking angles 'one axis at a time' iteration (tedious & time consuming task of trial-and-error) experienced when using those outdated single-axis 'bubble' or traditional digital levels to conduct surface plane levelling, tilt angle measurement, surface flatness profiling and precision 2D alignment tasks.

  • Digi-Pas® DWL-4200xy products are installed in the marine/off-shore platform to monitor in real time its two- dimensional tilt angles for safety control.
  • Digi-Pas® DWL-4200xy & DWL5500XY sensor modules have been utilized by leading companies in autonomous vehicles or driveless cars as part of the advanced control system to detect and interpret car's real-time inclination/angular position in various road conditions assisting to negotiate appropriate navigation path when subjected to tilt-related obstacles.
  • Digi-Pas® DWL-4200xy products are installed in the deep-sea commercial submarine to assist directional maneuver and control.
  • Digi-Pas® DWL-4200xy is installed in the Precision Coordinate Measurement Machine (CMM) for Levelling, vibration real time monitoring & ensuring machine's Positional Stability to achieve High Quality Sharp Image Capturing & thus optimize CMM accuracy performance.
  • Digi-Pas® DWL-4200xy is used for manufacturing automation applications. Typically for critical processes for Robot Welding angles, Robotic Assembly Arms and precision automatic manipulators.
  • Digi-Pas® Installation, commissioning and maintenance of solar energy panel tracking system are vital to ensure accurate photovoltaic panel's angular orientation on dual axis, typically to optimize capturing of solar energy. DWL-4200xy sensor module with control box is integrated into the tracking system to monitor and precisely guide 2-axis angular position of the panels. External connected peripheral devices can be activated and conveniently programed using PC Sync software for triggering intervention whenever required.
  • Digi-Pas® DWL-4200xy products are used for Crane tilt-angle safety control and management.
  • Digi-Pas® DWL-4200xy is used for levelling research laboratory precision instruments.
  • Digi-Pas® DWL-4200xy is used in the manufacturing of large format industrial and commercial printers, and also the installation, set up and preventive maintenance of such precision large printers in achieving high fidelity colour, quality image performance and reducing waste.
  • Digi-Pas® DWL-4200xy is used for Vision Measurement Equipment Installation & Setup. Levelling & Checking Equipment's Positional Stability for High Quality Sharp Image Capturing & Measurement.
  • Digi-Pas® DWL-4200xy is used for levelling and vibration measurement of achieving high stability & high quality image on Computerized axial Tomography Scan (CT Scan) and Magnetic resonance imaging (MRI) equipment.
  • Digi-Pas® DWL-4200xy is used for aligning precision fixtures.