Purchase Qty. Reference FOB Price
5-99 pieces US$23.00
100+ pieces US$18.58
Product Description
PRODUCT SPECIFICATIONS Specification 1.remove the protective cap. 2.first rinse the electrode with distilled water, and suck it with filter paper. 3.turn the meter on by pressing the "ON" key. 4.immerse the ph meter electrode in the solution to be tested(can not be over the immersion line ) ...