We offer a range of calibrated Test Coils and rare earth Neodymium-Iron-Boron (NdFeB) Magnets. These cylindrical and rectangular bar variety match well with our range of Reed Switches, Reed Sensors and Magnet Sensors and have a low strength variation tolerance to ensure repeatability in actuation distances. The magnets are stable up to 70C and are plated to withstand corrosion. The cylindrical test coils are used in-house for measurement of electrical and magnetic parameters of our Reed Switches, and the rectangular test coils are used to actuate with Reed Sensors and Magnetic Sensors. All sensing products are listed with actuating distances are paired with these magnets. We also offer 4-terminal Kelvin measurement test sockets for accurate Ampere-turn and Contact resistance measurements.