Profile: Macintyre Electronic Design Associates, Inc. specializes in the manufacturer of handheld fluxgate and search coil magnetometers for laboratory & general purpose use. Our products include DC field instruments, AC field instruments, satellite magnetometers, signal conditioners and magnetic field sources. Our TAM-1 satellite magnetometers have a fluxgate sensor unit that is separate from the electronics unit. The sensor can be located outside the satellite platform on a boom where it is less influenced by magnetic sources within the spacecraft. The sensor can operate over the much wider temperature range form -90°C to +80°C required for instruments in this severe environment. Our 8532 handheld AC field instrument uses an induction coil with a ferromagnetic core to sense the magnetic fields produced by alternating electric currents. The sensor probe is separate from the signal conditioning electronics, allowing the operator to point the probe in any direction with one hand while comfortably reading the meter in the other hand.