Electro-Sensors, Inc.
Electro-Sensors, Inc. consistently produces the most reliable speed control and motion detection systems available, utilizing leading-edge technology to continuously improve our products and make them easier to use. Our goal is to manufacture the industry-preferred product for every market we serve. We do this through total quality commitment, by completely fulfilling our customers' expectations.
http://www.electro-sensors.com/

SNR Mechatronics
SNR Mechatronics is able to offer customized motion sensing technology, sensor bearings, speed sensors and angle sensors
http://www.snr-mechatronics.com

Harbin
Manufacture ignition coil, speed sensors. From China.
http://www.beter.com.cn/

Sensorex
Sensorex quality pH Electrodes, ORP Electrodes, Conductivity Sensors, non-contacting Toroidal Conductivity Sensors, dissolved oxygen sensors, and Chlorine Dioxide Sensors. Sensorex over 30 years experience manufacturing a wide array of electrochemical sensors. Find the right sensor for your application.
http://www.sensorex.com

IFM Efector, Inc.
ifm efector - Sensors and Controls
http://www.ifmefector.com/

INFRA Electronic Sensors
Manufacturing photoelectric sensors, inductive and capacitive sensors, thru beam photoelectric sensors, magnetic and connectors. From Italy.
http://www.infrainternational.com/prodotti.htm

SIE Sensors
Manufacturers of a wide range of capacitive sensors. Many specialty sensors, including flexible, high temperature and analog capacitive sensors.
http://www.sie-sensors.com/

LightWorks, LLC
Produces non contact laser speed and length sensors for industrial applications.
http://www.lightworksllc.com/

Sports Sensors Inc
Produces the Arrowspeed Radarchron, a miniature doppler radar that is attached to a bow to measure arrow speed.
http://www.archeryradar.com/

Sensorpro
Manufacturer of sensors and transducers for temperature, position, speed, pressure, flow and electric current measurement.
http://www.sensorpro.com/