A miniature susceptometer has been developed that is small enough to fit inside clamp type pressure cells. The design and performances of the device are described, as well as examples of measurements possibly allowed. The susceptometer is comprised of 3 coils: a primary and a pair of balanced secondaries for the pick-up coils. Measurement sensitivity is enhanced by minimiz- ing the size of the coils choosing certain design and construction technique. Calibration work for balancing the vacuum background signal is presented, as well as susceptibility measurements of superconducting Pb and various paramagnetic salts. Upcoming use in clamp type pressure cell is discussed.