Speed Sensors - Variable Reluctance
Product Announcement from Magnetic Sensors Corporation
Often called "gear tooth sensors" or "passive sensors," VR sensors offer great versatility and the capacity to measure very high speeds. Available in all standard configurations and sizes from .110" dia. barrel-type to 3/4" threaded. Metric from 12mm to 22mm.
Specified for high reliability, long life, simple installation, and economy. Can be configured for very high temperatures.