Never Used.\n\nOAD: 20"L x 15"W x 16"H\n\nIncludes: Geong Fischer Signet PH/ORP Transmitter.\n\nIncludes: MP-100 Signal Converter.\n\nIncludes: Signet 2760 Preamplifier.\n\nIncludes: Instructions\n\nCables and Tubing Labeled.\n\nManual Speed and Stroke Adjustment.