Sine template
Sine wave template
Single inlet base pressure instrument
Single sided spirit level
Single turn current transformer for use as a current sensor
Single-spacing stud tape
Sit-up counter
Size indicator for a garment hanger
Skate odometer
Ski goggle lens tester
Ski wax and paraffin tester
Skid member for caliper gauge of contacting type
Skimmer test plug
Skin for a navigation system
Skin programmer
Skinfold caliper
Slack adjuster
Slide caliper
Slide caliper
Slide caliper