pH/ORP/Temperature Combo Tester - HI98121 $ 390.00 Price: $ 390.00 Read more about pH/ORP/Temperature Combo Tester - HI98121
pHep 5 pH Tester / Temperature - HI98128 $ 240.00 Price: $ 240.00 Read more about pHep 5 pH Tester / Temperature - HI98128
Waterproof Hydroponic pH Tester Groline - HI98118 $ 220.00 Price: $ 220.00 Read more about Waterproof Hydroponic pH Tester Groline - HI98118
Checker® Plus pH Tester - HI98100 $ 160.00 Price: $ 160.00 Read more about Checker® Plus pH Tester - HI98100
Hydroponics pH Meter - HI98115 $ 160.00 Price: $ 160.00 Read more about Hydroponics pH Meter - HI98115
Educational pH Meter - HI 99104 $ 150.00 Price: $ 150.00 Read more about Educational pH Meter - HI 99104