1198F06: TruLine ORP 50; ORP electrode no temperature, single-junction, refillable, glass shaft with 1-m cable, BNC connector. Dimensions = 120 mm length; 12 mm OD.
1198F07: TruLine ORP 51; ORP electrode no temperature, single-junction, gel electrolyte, epoxy shaft with 1-m cable, BNC connector. Dimensions = 120 mm length; 12 mm OD.