Kern pocket balance cm series kern cm 320 1n the kern cm 320 1n is a 320g pocket balance that has been designed to be rugged and portable the weighing area is built inside a useful folding carrying case for protection against pressure and dusta solar powered calculator is integrated into the hinged cover on the other side of the scale area the wallet size balance makes it ideal to be conveniently kept in a jacket pocketthis balance is particularly suited for those travelling and regularl