Low Range Dry Calibration 7997170 Abb Iso – Precise MeasurementThe Low Range Dry Calibration 7997170 by Abb Iso, model 4690 00012221 Std, is engineered for precision in industrial and marine applications. This instrument is crucial for accurate measurements in various settings. This ISO 7027 Low Range calibration tool, with a range of 0 1. 16 Ntu to 0 2. 84 Ntu, provides reliable performance. The product features Dry Calibration Standard Silica Gel. The maker's reference is B16072 (Old P N: 89009033), and the