YSI 251401Y DPD Free Chlorine Reagent Powder for pHotoFlex and 900 Chlorine Colorimeter, EPA Approved, 10ml Volume, 0.02 to 2mg/L Range (Pack of 100) auspowers_batchone Perfect for use in the

Perfect for use in the dark The Five Scales: （1）The 1st Light detects a Normal EMF field

flat surface joints

Material: the mounting tape is made of PE foam

Check out the description bellow for whats included

the reading effect is clearer in dark places

YSI 251401Y DPD Free Chlorine Reagent Powder for pHotoFlex and 900 Chlorine Colorimeter, EPA Approved, 10ml Volume, 0.02 to 2mg/L Range (Pack of 100) auspowers_batchone Perfect for use in theYSI 251401Y DPD Free Chlorine Reagent Powder for pHotoFlex and 900 Chlorine Colorimeter, EPA Approved, 10ml Volume, 0. 02 to 2mg L Range (Pack of 100) YSI 251401Y DPD Free Chlorine Reagent Powder for pHotoFlex and 900 Chlorine Colorimeter, EPA Approved, 10ml Volume, 0. 02 to 2mg L Range (Pack of 100) Product Features