Model MD900-T Digital Clinometer

The biaxial model MD900-T is an economical digital clinometer with powerful firmware features. User programmable settings include AUTO-zero (tare), baud and output rate, sample averaging, and more. Output is RS-232 or RS-422 (RS-485 full-duplex). The MD900-T easily integrates with a variety of GPS receivers and supports Trimble TCM, NMEA XDR, BAE, and Ashtech output protocols. Units ship standard with 6-ft. hook-up cable and a 100-240VAC power transformer. Use the MD900T for industrial pitch and roll measurement, marine piling, dredging and construction systems, platform leveling, geotechnical monitoring, and more.

Additional Information

Weight 19.2 oz
Dimensions 4.7 × 3.14 × 2.4 in

• Antenna Positioning
• Structural Monitoring
• Industrial Test & Measurement
• Marine Piling
• Pitch & Roll Measurement

Performance Specifications

Angular Range (°)±10±25±50
Resolution (°)10.0020.0040.01
Repeatability (°)
Scale Factor (°/mA)21.253.1256.25
Non-linearity (%)3111
Output Voltage (V)RS-232, RS-422 (RS-485 full duplex)
Output FormatNMEA XDR, Trimble TCM, BAE, Ashtec compatible, Simple (default: X, Y, Temperature, S/N)
Baud Rate9600 (default), 19200, 28800, 57600, 115200, 230400
ChannelsX-tilt, Y-tilt, Temperature, Serial No.
Kz Coefficient (°/C, typical)<10 arcsec
Ks Coefficient (%/C, typical)0.03
Time Constant (seconds)0.15
Natural Frequency (Hz)7
Power7-28 VDC @ 30mA, 250 mV ripple max, reverse polarity protected
Environmental-40 to +85°C operation and storage. 100% humidity, IP65
MaterialsDie-cast aluminum, painted

1: Resolution calculated at 1mV.
2: Linear scale factor calculated from BFSL through calibration curve.
3: Linearity calculated as max % deviation from BFSL. 0.05% linearity achievable using a polynomial.

*Specifications subject to change without notice on account of continued product development


Outline Drawing
User Manual

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