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Wireless Bluetooth ion tester for Android smartphone or tablet, selectable 5 ion concentration measurement methods, including direct reading, known addition/subtraction, sample addition/subtraction, accuracy 1% F.S.

Multiparameter portable ion meter, 2 to 5 points calibration, setup menu contains 12 options, suitable for measuring pH, mV and ion concentration, accuracy 1% F.S.

Professional portable ammonia ion meter for outdoor applications, accuracy 1% F.S.

Professional portable ammonium ion meter for outdoor applications, accuracy 0.5% F.S.

Professional portable bromide ion meter for outdoor applications, accuracy 0.5% F.S.

Professional portable cadmium ion meter for outdoor applications, accuracy 1% F.S.