ULTRASONIC - Levels are distinguished by particularly good readability of the vertical head vial. It has a rotating vial in addition to a magnetic system for transferring angles. The horizontal vial has an additional marking for a 2% inclination. The SUPERTORPEDO is best suited for plumbers, heating engineers, etc.

Our Spirit Level glossary (PDF) provides a good comparison of the selected BMI Levels: The 690, 691, 692, 695, 698 and 699 and the 660, 661 and 665 models are listed here.

Spirit Level glossary (PDF)