Magnetic sensors for use with determining magnetic fields, positions, velocity, acceleration and temperature, magnetic fields and images, liquid levels; rotary position sensors for use with determining a rotary positions; contactless potentiometers; valve position sensors; knob position sensors; gear tooth motion sensors for the applications of speed, direction sensing, linear and rotary position sensing; magnetic scales; magnetic encoders; magnetic switch sensors for use with utility water meters, utility gas meters, utility heat meters, acoustic appliances, loop systems, phones, hearing aids, proximity switches, speed sensing, rotary and linear position sensing, and solid state switches; magnetic linear sensors for use with magnetic field sensing, current sensing, industrial flow meters, displacement sensing, rotary position sensing, magnetometers, geomagnetic sensing, and displacement and position sensing; sensors for measuring concentrations of chemicals and bioagents, not for medical use; computer hardware and software systems incorporated with a magnetic sensor for tracking people, objects, and pets; magnetic imaging sensors for counterfeit coin detectors, banknote counters and validators, banknote sorters, automated teller machines, ATMs, Automated vending machines; magnetic card readers; counter and meters, namely, coin counters and currency counter; global position system and satellite navigating instruments, namely, GPS, electronic compasses, geomagnetic sensors; bar code readers; cash registers; products for use with determining and control of position, velocity, acceleration, temperature, liquid level, magnetic fields and images, namely, thermometers not for medical purposes, electric relays, t-coil pickups, electricity limiters, ammeters, electric distance measuring gauges using a magnetic sensor; electric switches; electric commutator; electromagnetic monitors using magnetic sensors; potentiometers; battery chargers; electric locks; electroplating parameter testers; power rectifiers; electronic bulletin boards; micrometer gauges; precision balances; electric measuring gauges using a magnetic sensor; electric theft prevention alarms; electro-dynamic apparatus for the remote control of vehicles, motors, appliances, electric switches, thermometers, valves, assembly lines, gears, lighting; magnets