Brand：
Price：
$192.00
SE
HANNA HI719 mg Mg Hardness Tintometer
Measurement range 0.00 to 2.00 ppm, resolution 0.01 ppm, accuracy +/- 0.20 ppm +/- 5% of the reading, is a simple design, accurate measurement, affordable measurement mg/Calcium Hardness meter.
$130.00
SE
Water Hardness Ionic Strength Regulator 1000ppm 480ml
Universal Water Hardness Ionic Strength Regulator, concentration 0.1%, capacity 480 ml
$130.00
SE
Water Hardness Ion Standard Solution 1000ppm, 480ml
Universal Water Hardness Ionic Standard Solution, concentration 0.1%, capacity 480 ml
If you don't know how to choose "Ion Meter", please consult customer service.