Both measure pH, but they differ in accuracy and application.
pH Test Strips (from R55)
Dip into liquid and compare colour to a chart. Accurate to plus or minus 0.5 to 1.0 pH units. Inexpensive, no calibration needed, and ideal for quick classroom checks and rough field tests. Colour interpretation can vary between users.
pH Meter, Hanna HI98103 (R1,650)
Gives a precise digital reading accurate to plus or minus 0.1 pH. Removes subjective colour comparison and delivers consistent, repeatable results. Suited for experiments, research, food production, and any application requiring accurate, documented measurements.
Not sure which is right for you? Email info@smartlabs.co.za and we will help you choose.