A two‐core flux‐gate magnetometer is employed in a simple balanced bridge circuit as the dc field detector of a single strip permeameter. The sensitive magnetometer and simple bridge circuit eliminated the necessity of the complex filter and selective amplifier used in earlier systems and allows operation independent of oscillator frequency stability. The H‐measuring system is designed to measure fields from 1 moe to about 10 oe with a sensitivity of ≈25 &mgr;a/moe. Economy and simplicity of construction, circuitry, and operation are its chief advantages.