Smith Systems, Inc.
6 Mill Creek Center
Brevard, NC 28712
Telephone: (828) 884-3490
Fax: (828) 877-3100
GESi Sensor – Systems
Salamanderkaule 6
53842 Troisdorf
Telephone: +49 (0)2246-16 91 60
Fax: +49 (0)2246-30 12 22
Mobil: +49 (0)175-77 96 91 2
Website: Email:
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Passive Speed Sensors (VR)

For more info visit our Application Design page

Passive Speed Sensors
Product Catalog: Search for Passive Speed Sensors by detailed specifications, compare products side-by-side and more.

Smith Systems, Inc. passive speed sensors convert mechanical motion to an A/C voltage without the need of a power supply. These self-contained magnetic sensors produce a magnetic field which, when in the proximity of ferrous objects in motion, generate a voltage. The frequency of this voltage is directly proportional to the speed of the object in motion.

Magna-Tran ® speed sensors are available in a variety of housing configurations and terminations. Housing configurations to accommodate high pressure and fluid submersion applications are available. These passive sensors are designed to accommodate a broad spectrum of temperatures and are resistant to oil, dirt and moisture.