Does the pen tip turn color after the first several uses? Mine went from yellow to purple.

Mine's half of the tip turned from orange into purple the first time I used it. Some say it will fade back over time while others say it's permanent. I don't know about validity of readings but I suppose they should still be consistent.

can this be used on fabrics?

Sorry, it cannot. It only can be sued on paper or paperboard products. Thank you.

Would this work to test stickers?

I haven't tried it specifically on stickers, but it has worked on all the various surfaces I have tested so far.

Will this work on black paper

I'm not sure that it would, but I haven't specifically tried it on black paper.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Lineco pH Testing Pen for Paper or Paperboard Products.

Product ID: 74895050

Details

Brand
Lineco
Manufacturer
Lineco
Recommended uses for product
pH testing for
Unit count
1.0 count
pH range
6.5-14

📊pH range 6.5-14

⏱️Results in seconds

🖊️Precision pH indicator pen

$U1668

Duties & taxes included

In stock

Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖋️ Know your paper’s future—test pH like a pro, before it’s too late!

PORTABLE LIGHTWEIGHT - Compact 0.01 kg pen fits perfectly in your toolkit for on-the-go paper testing.
VISUAL COLOR CODED ALERTS - Purple line confirms archival-safe paper; yellow or clear warns of acidity risks.
ACCURATE P H RANGE DETECTION - Detects pH levels from 6.5 to 14, ensuring reliable archival quality checks.
SIMPLE ONE BUTTON OPERATION - Effortlessly test paper acidity with a sleek, easy-to-use pen design.
INSTANT ARCHIVAL VERIFICATION - Get clear pH results in seconds to protect your valuable paper goods.

The Lineco pH Testing Pen delivers fast, reliable pH readings (6.5-14) for paper and paperboard, using a simple color-coded system to instantly identify archival-safe materials. Lightweight and easy to use, it’s the essential tool for professionals ensuring longevity and quality in their paper products.

Specifications

ASIN	B000KNJCSS
Best Sellers Rank	892,923 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 33 in pH Meters
Brand	Lineco
Customer Reviews	4.5 4.5 out of 5 stars (206)
Item Weight	0.01 Kilograms
Manufacturer	Lineco
Manufacturer Part Number	L533-0023
Model Number	L533-0023
Number of Items	1
Recommended Uses For Product	pH testing for paper products
Sterility Rating	6.5-14
UPC	099295003506 099295530811
Unit Count	1.0 count

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