D802 Deep Water Submersible Tiltmeter with Digital Output

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Key features

• High-precision measurement accuracy
• Suitable for use in extreme water depths
• Waterproof to 2500 m
• 16-bit AD converter with onboard data logger
• Real-time clock with temperature measurement

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About the D802 “Deepwater” 

– digital, submersible tiltmeter for offshore and deep-ocean applications (RS232/RS422, up to 2,500 m)

The D802 Deepwater is a high-precision, submersible digital tiltmeter designed for marine, offshore, and deep-ocean deployments. It uses an absolute, gravity-referenced electrolytic sensor, delivering very high accuracy with virtually zero long-term drift. High-gain versions achieve sensitivity down to < 0.0017 mm/m (or better).

For integration into measurement and monitoring systems, the D802 supports RS232 or RS422. Its housing is engineered for underwater use and is watertight down to 2,500 m (IP68)—ideal for long-term stable measurements in demanding environments.

Key benefits 

• Digital output: RS232 or RS422
• Output formats: NMEA XDR, Trimble TCM, Ashtec compatible, Simple (default: X, Y, Temp., S/N)
• 1 or 2 axes, channels X-tilt, Y-tilt, temperature
• Ranges: ±0.5°, ±3°, ±50° (custom ranges on request)
• Resolution (range dependent): < 0.0001° (±0.5°), 0.002° (±3°), 0.02° (±50°)
• Submersible: IP68, watertight to 2,500 m
• Rugged construction: 316 stainless steel, approx. 5 kg, 3 m cable + DB9 for digital I/O
• Supply: 7–25 VDC (typ. 27 mA), reverse polarity protected
• Temperature: operating −4 to +60 °C, storage −30 to +100 °C

Typical applications

• Structural monitoring (subsea or offshore structures/assets)
• Platform leveling
• Angle measurement & control / industrial measurement & control in marine installations

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