- RESISTIVITY METER MODEL 88C (DIGITAL) – 207960 – Included Parts
- RESISTIVITY METER MODEL 88C – 206510 – 2 Year Spares
- RESISTIVITY METER MODEL 88C – 206403 – 1 Year Spares
- RESISTIVITY METER MODEL 653B- 206402 – 1 Year Spares
- RESISTIVITY METER MODEL 653B – 206509 – 2 Year Spares
- RESISTIVITY METER MODEL 653B (ANALOG) – 101582036 – Included Parts
- RESISTIVITY CALIBRATION CHECK – 210179 – Included Parts
- CELL SAMPLE MODEL 653B RESISTIVITY METER – 210174 – Included Parts