what about a oakton waterproof PTTestr 35(pH/TDS) its new and i found one online for $112.00 plus SH
i'am thinking about getting this one what you guys think
so is hanna better or oakton
Felixthecat Reviewed by Felixthecat on . HANNA INSTRUMENT HANNA HI 98129 Waterproof pH/EC/TDS/ºC/ºF Combo Tester it's the black one what you guys think about this product is it better to buy it separate or 3in1 Rating: 5