Satellite antenna alignment device and method

Scale device

Scraper for determining the position of pipelines

Scribing protractor

Scuba diving instrument console having swivelling compass assemb

Self adjusting inclinometer

Self calibration circuit for determining an accurate zero...

Self contained quick reacting wide angle gyrocompassing

Self supporting spirit level tool

Self-balancing, no-spin magnet compass

Self-centering needle-less magnetic compass

Self-contained downhole compass

Self-contained plumb bob and ink line marker with line capable o

Self-erecting tiltmeter

Self-illuminated attitude indicator and method for...

Self-supporting level measurement device

Semi-automatic self-contained magnetic azimuth detector calibrat

Sensing device

Sensing device

Sensitive inclinometer