Test Tube pH Pens appetizer Choose Zevia and make a

Choose Zevia and make a positive choice for yourself and our shared future

Broad-spectrum SPF 50+ protects against both UVA and UVB rays

Your cat will love the taste of our holistic cat food

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Test Tube pH Pens appetizer Choose Zevia and make aFits standard test tubes 16 x 50 mm or larger. Highly stable and accurate readings with a large LCD display. Designed for simple one hand operation. Automatically calibrates to pH 4, 7 and 10 buffers and can be adjusted to recognize some other non standard buffers as well. Features hold function, and auto power off with low battery indicator. General Purpose Glass Probe: EPA compliant for labs and wine Penetration Probe: for food & soil Flat Tip