


Test Tube pH PensFits 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
Quick Dispatch:
Your Test Tube pH Pens orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Test Tube pH Pens ships.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.8 ★★★★★
Based on 518 reviews
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Product Reviews
★★★★★ 5
definitely recommend these to anyone who’s struggling with rough dry heels
Size: 6 Pairs - 6 Colors Assorted
I was pleasantly surprised by the effectiveness of these socks. They feature a soft gel-lined interior that helps absorb intense moisture from my dry heels. After wearing them for a couple of nights, I noticed a significant improvement in the texture and appearance of my heels. These socks stay in place while sleeping and don’t slip off. Additionally, I appreciate that they are reusable and can be washed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
★★★★★ 5
Really works!
Size: 6 Pairs - 6 Colors Assorted
This is a true moisturizer sock that actually works to heal and nourish dry heels. You will definitely see a difference within the first 2 hours! The only thing for me is the scent is over bearing and too strong if your sensitive to smell. Let me know when a scentless sock are made and I'm there! 5 stars because the socks truly works.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 4
Seem to do what they are advertised for.
Size: 6 Pairs - 6 Colors Assorted
Price was decent. They fit fine. Decent colors. They give decent instructions of how to use them. I do feel that they give a decent support even though they're mainly for helping with dry cracked heels (which they also seem to do a decent job on). I haven't washed my first worn pair yet, but they seem like my regular socks in materials so they should hold up well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
★★★★★ 5
Best budget dupe by far
Color: Gold, Size: 3.38 Fl Oz (Pack of 1)
Love, love, love it. Love the price, love the feel, love the smell. It absorbs fully not greasy at all and leaves just a hint of glow on your skin.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Great! Smells good, and subtle sparkle!
Color: Gold, Size: 3.38 Fl Oz (Pack of 1)
Smells so good !!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
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