Wanted to buy an EC to match my trusty PH20 so I bought an EC20. At first I was disappointed, the readings continued to drift even after calibration. Read the instructions and it is recommended to leave the probe in the calibration solution for 10-15 minutes if it has not been used for a long time. Did that, did a 2 point calibration and everything works great. I have used it daily for 8 days since then and it has stayed within the size specification. I would recommend it simply because the EC20 is just as reliable as my PH20 which I have had for over a year and has the same build quality.
50 Pack 3Ml Plastic Transfer Pipettes Eye Dropper Moveland Pipettes Dropper
25 Review
LifeStraw Go Water Filter Bottle: The Ultimate 2-Stage Integrated Filter Straw for Hiking Adventures
10 Review
9 Pack 12Ml/Cc Dental Syringe W/ Curved Tip & Measurement - Disposable Graduated For Oral Care, Tonsil Stones Removing, Lab Use, Feed Small Pet
25 Review
Contact lenses Bausch & Lomb Soflens Daily Disposable, 90 pcs., R 8.6, D -7
55 Review
Get 24 Pack Of 4 Oz. Amber Boston Round Glass Bottles With Droppers From GBO GLASSBOTTLEOUTLET.COM
11 Review
ULAB Scientific 1000Ml Borosilicate Glass Beaker With Printed Graduation - Durable And Accurate For Lab Use (UBG1005)
12 Review
Graduated Erlenmeyer Glass Flask Set With Narrow Mouth - 500Ml Capacity
15 Review
Laboy Glass 500ML Single Neck Round Bottom Boiling Flask Heavy Wall With 24/40 Joint Heating Reaction Receiving Flask Organic Chemistry Lab Glassware
16 Review