pH Meters for RBTI Testing
The pH readings for RBTI can be made using pH Tape, pH liquid indicators, or pH meters.
The Checker pH pocket tester can provide you with a simple, inexpensive pocket pH tester for about the same cost as a few rolls of pH tape.
Compact waterproof pH meter with flat sensor technology requiring just a couple of drops of sample.
Model 100 pH Meter from Kruger & Eckels