Eberline PIC-6A Portable Ion Chamber. Manufactured by Eberline Instrument Corporation. The PIC-6A is a small, lightweight portable instrument which measures the dose rate from Gamma radiation. The detecting element is a gas filled ionization chammber operating in the proportional region. Six decades of dose rate, from 1 mR/hr to 1000 R/hr, are measured in two ranges of three decades each. All were in storage,are used and in good condition. Complete with 9 volt batteries.