WAS DIGING THROUGH OLD BOXES AND FOUND THESE UNIT, WE
TESTED THEM AND ALL IS OK, IF YOU
HAVE A CE-6 OR CE-4 THE 317 PLUG-IN WILL GIVE YOU MULTI-MODE
OPERATION AND HIGH SENS, LIKE
1 MICROVOLT, THIS MAKES YOUR CE-4/6 WORTH KEEPING.
ASKING--$400.00 FOR 317
ASKING--$250.00 FOR 313