
I bought a cheaper Gain Express ORP meter and just attached the meter to a vertical bookshelf support with this solution in the end cap on the side of the cap tied my own. Keeps the sensor popping up all the time and works well.

Atlas Scientific Calibration Solution 125Ml
3 Review

Semi-synthetic engine oil IDEMITSU Zepro Euro Spec 5W-40, 4 l, 3.84 kg, 1 pc.
26 Review

π§ Certified Laboratory Deionized Water Demineralized: Ensuring Pure and High-Quality Results
3 Review

Smart Solutions Emulsifying Vegetable Non Toxic
3 Review

Valchoose LDPE Economy Wash Bottle, Narrow Mouth Squeeze Bottle Medical Lab Plastic, Safety Squeeze Bottle No Spill, Bend Mouth Watering Cans (500Ml / 16Oz / 1 Bottle)
14 Review

Graduated Erlenmeyer Glass Flask Set With Narrow Mouth - 500Ml Capacity
15 Review

Get Your All-Purpose Cleaning Solution With Bealee'S 24 Oz Plastic Spray Bottles - 2 Pack
16 Review

ULAB Scientific 1000Ml Borosilicate Glass Beaker With Printed Graduation - Durable And Accurate For Lab Use (UBG1005)
12 Review