1. Althen Sensors
  2. Sensors
  3. Tilt and inclinometers
  4. Geotechnical (electrolytic) inclinometers
  5. MD900-T Digital Clinometer
  • MD900-T measurement device, high accuracy

MD900-T Digital Clinometer

Digital inclinometer with powerful firmware features


Key features

  • RS-422 / RS-232 / RS-485
  • wide-angle
  • biaxial
  • NEMA 4X
  • GPS
  • user programmable thermistor
  • temperature sensor
  • digital
  • IP65
  • low-impedance
  • waterproof

About the MD900-T (900 Series)

 – cost-effective digital 2-axis clinometer for precise tilt measurement

The MD900-T Digital Clinometer (900 Series) is a biaxial (2-axis) digital inclinometer that combines strong price/performance, robust system integration, and flexible configuration. With powerful firmware features, it is ideal for pitch/roll measurements, leveling tasks, and monitoring applications in industrial and geotechnical environments.

Key benefits

  • 2-axis inclination measurement for reliable pitch/roll readings
  • Comprehensive, programmable firmware, including AUTO-Zero (Tare), adjustable baud rate & output rate, sample averaging, and additional settings
  • Digital interfaces for system integration: RS-232 or RS-422 (RS-485 full-duplex)
  • GPS-compatible output formats/protocols, supporting Trimble TCM, NMEA XDR, BAE, and Ashtech
  • Fast setup: standard delivery includes a 6-ft connection cable and a 100–240 VAC power transformer

Typical applications

  • Structural and geotechnical monitoring (e.g., tilt/settlement)
  • Antenna positioning / leveling
  • Industrial test & measurement and integration into serial/GPS environments
  • Marine applications (surface/subsea)

Technical overview

  • Output: RS-232 or RS-422 (RS-485 full-duplex)
  • Firmware features: AUTO-Zero (Tare), baud/output rate, sample averaging, etc.
  • Protocols: Trimble TCM, NMEA XDR, BAE, Ashtech
  • Scope of delivery: 6-ft cable + 100–240 VAC power transformer

Do you need this sensor for your next project?

Request a no-obligation quote or send us your contact details for a free, no-obligation consultation. Our sales engineers will then contact you within a maximum of 1 to 2 working days.

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Talk to our experts

Not exactly what you are looking for? We offer standard sensors, but can also help you with sensors adapted for you or a fully customised measurement solution. Contact us for advice or pricing.

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Technical Specifications

Specification Value
Angular range ±10° ±25° ±50°
Baud rate 9600 (default), 19200, 28800, 57600, 115200, 230400
Channels X-tilt, Y-tilt, Temperature, Serial No.
Dimensions 120 x 80 x 60 mm, 0.55 kg (1.2 lb.)
Environmental -40 to +85 C operating and storage. 100% humidity, IP65
Ks coefficient (%/c) 0.03%/°C (typical)
Kz coefficient (deg/c) <10 arcsec/°C (typical)
Materials Diecast aluminum, painted
Natural frequency 7 Hz
Non-linearity 1%
Output RS232, RS422 (RS485 full duplex)
Output format NMEA XDR, Trimble TCM, BAE, Ashtec compatible, Simple (default: X, Y, Temp., S/N)
Power 7-28 VDC @ 30mA, 250 mV ripple max, reverse polarity protected
Repeatability 0.01° 0.01° 0.02°
Resolution 0.002° 0.004° 0.01°
Time constant 0.15 sec

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