Apogee-A High Accuracy Motion Sensor

SBG Apogee-A: High Accuracy Motion Sensor

Apogee-A from SBG Systems is a highly accurate Motion Reference Unit (MRU). Based on robust and cost-effective MEMS technology, the Apogee-A provides precise motion and heave data.



The Apogee-A: High Accuracy Motion Sensor from SBG Systems offers an affordable and precise motion sensor system accessible for any surveying company.

By utilizing IMU calibration, testing and filtering, SBG is able to deliver one of the highest precision MRU systems on the market. There is no need to input the wave frequency since this system detects it automatically and corrects itself as needed.

Apogee-A is outfitted with a delayed heave feature, which does not require any additional software. This feature allows for a more precise heave calculation, accurate within two centimetres, and displayed instantaneously.

Apogee-A is part of the Apogee Series from SBG Systems offering affordable and robust solutions for land, air and marine applications.


  • Precise multi-beam sonar motion compensation
  • Unbroken post-processing workflow
  • Internal 8 GB data recorder
  • Postponed heave for problematic sea conditions

Technical Specifications

Heading:0.025° (when connected to GPS/GNSS)
Roll & Pitch:0.008° (over 360°)
Real-Time Heave:5 cm
Delayed Heave:2 cm
Dimensions:130 mm (L) x 100 mm (W) x 58 mm (H)
Weight:< 690 grams
Consumption:< 3 W
Supply:9 to 36 VDC
IP Rating:IP68 (aluminum)
Operating Temperature:-40 °C to 71 °C
Specified Temperature:-20 °C to 60 °C
MTBF (computed):50,000 hours
Operating Vibrations:20 Hz to 2 kHz as per MIL-STD-810G
Accelerometer 10 g: 8 g RMS




All products from SBG Systems come with a 2-year warranty. This warranty can be extended up to 5 years. The warranty is covered in more detail in the SBG Services page.

Why Buy from Us?

In business since 2004, Canal Geomatics is an authorized dealer for SBG Systems and has established itself as an industry-leading distributor of high-precision positioning products in North America. Our mission is to find the best solution for each unique application and extend premium support to ensure the long-term success of our customers. We offer both volume and reseller discounts for the majority of our product lines.


Apogee-A from SBG Systems is available through Canal Geomatics. If you would like more information, please get in touch with us using the Request Pricing form.