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  • Precision biaxial tiltmeters
  • Angular range:
    • ±0.5° (high gain)
    • ±5° (mid range)
    • ±80° (wide angle)
  • Resolution:
    • 1 µradian (High-Gain)
    • 10 µradian static (Mid-Range)
    • 4 arc seconds (Wide Angle)
  • NEMA 4X protection
  • Resits corrosion
  • Floor mount
  • RS232 and RS422 outputs
  • Operating temp: -13 to 158°F (-25 to 70°C)
  • 0.5 inch (12.7mm) holes in each corner to fit over SST studs


The Jewell Instruments D711 Tiltmeter is a precision digital instrument packaged in a weatherproof housing. Its NEMA 4X designation (IP65) means that it is unaffected by continuous exposure to moisture and wet weather, and that it resists corrosion that can occur in wet conditions. RS232 and RS422 output versions are both available. The powerful firmware command set enables the user to control output data rates, data formats, sample averaging, and other useful parameters. All units are shipped with our graphical ZAGI user interface software for Windows computers.

The D711 bolts or clamps to any surface and is well suited for areas of heavy traffic or vibration. The 0.5-inch (12.7mm) holes in its three corners fit over threaded stainless steel studs, provided with each order. The tiltmeter is double-nutted to the studs after they are anchored in the mounting surface. Each tiltmeter comes with a hookup cable and power supply for quick operation using your PC.