D701 Digital Platform Tiltmeter

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Key features

• Angular Range ±0.5° (high-gain)
• Resolution 1 μradian
• Output RS232 or RS422
• Virtually zero long-term drift
• Storage capacity up to 22,000 samples
• With advanced firmware features
• Including invar leveling feet for easy installation

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About the D701-A/B Digital Platform Tiltmeter 

– high-precision 2-axis tiltmeter with digital interface and data logging

The D701-A/B Digital Platform Tiltmeter is a high-precision, biaxial (2-axis) tilt instrument for demanding monitoring and leveling tasks. It combines a high-accuracy electrolytic sensor with digital outputs (RS232 or RS422/RS485 full-duplex) and powerful firmware features—ideal wherever long-term stability, repeatable results, and flexible system integration are essential.

Built for the field—precise in detail

With Invar leveling feet, the D701 can be installed quickly and reliably on any horizontal surface. Depending on the version, it delivers resolution down to < 1 µrad with virtually zero long-term drift—perfect for high-resolution tilt and deformation analysis.

Key benefits

• 2-axis tilt + temperature: X-tilt, Y-tilt, temperature, and serial number channels
• Digital interfaces: RS232 or RS422 (RS485 full-duplex)
• Flexible output formats: including NMEA XDR, Trimble TCM, Ashtec-compatible, and “Simple” (default)
• Configurable firmware: e.g., sample averaging, Auto-Zero (Tare), baud/output rate
• On-board memory: data storage up to 22,000 samples
• Industrial/outdoor ready: IP65, operating −40 to +85 °C, supply 7–28 VDC (reverse polarity protected)

Versions & quick selection guide

• D701-A (High-Gain): angle range ±0.5°, resolution < 1 µrad
• D701-B (Mid-Range): angle range ±5.0°, resolution 10 µrad

Typical applications

• Volcano monitoring
• Geotechnical & structural monitoring (e.g., deformation)
• Bridge deflection monitoring
• Precision metrology
• Radar platform leveling

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