How do I get warranty support? I have had this for 3 months and it quit working, just shows zero with an occasional flash of random numbers.

It's the horrible design in the battery tray. The pressure that keeps the metal contacts down also lifts the entire battery tray away from it's case making it lose contact. You can try to press them back but it will only happen again.

can i get more Calibration powder?

Yes, available on Amazon. I use liquid ph 7 which I think is more economical and much simpler to use.

where are the batteries? it says included. are they installed inside? Mine won't turn on

Yes they are installed. They are most likely dead, both meters I received came with dead batteries. The thin black cap comes off if the push in the release on the back and pull it up.

Can this be used to test the pH of automotive coolant in your radiator??

Yes. It’s a general liquid ph meter

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

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Digital pH Meter Tester Pen for Water, Pre-Calibrated, High Accuracy ±0.01, 0–14 pH Range, Pocket Size for Drinking Water, Pool, Aquarium & Hydroponics (Yellow)

Product ID: 231974651

👜pocket-size portability

📏±0.01 high accuracy

🧪0–14 full pH range

₨349

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Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Stay ahead with precision—because your water quality deserves the best!

COMPACT POWERHOUSE - Sleek, pocket-sized design fits your on-the-go lifestyle—test pools, aquariums, or hydroponics effortlessly.
READY OUT OF THE BOX - Pre-calibrated for instant use—no setup delays, just reliable readings anytime, anywhere.
MULTI ENVIRONMENT MASTERY - Versatile for drinking water, pools, aquariums, and hydroponic systems—one tool for all your pH needs.
USER FRIENDLY CALIBRATION - Easy 3-step calibration ensures your meter stays accurate, backed by clear guides and tutorial videos.
PRECISION AT YOUR FINGERTIPS - Experience lab-grade accuracy with ±0.01 pH precision for flawless water quality checks.

This Digital pH Meter Tester Pen delivers professional-grade accuracy (±0.01) across the full 0–14 pH range. Pre-calibrated for immediate use and designed for portability, it’s perfect for precise water testing in drinking water, pools, aquariums, and hydroponics. Its user-friendly calibration and compact size make it an essential tool for millennial professionals who demand accuracy and convenience on the go.

Specifications

ASIN	B08HLXBBK4
Batteries	1 CR2 batteries required.
Best Sellers Rank	#981 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Lab pH Meters
Date First Available	September 7, 2020
Item Weight	3.52 ounces
Manufacturer	Ruolan
Package Dimensions	6.85 x 2.13 x 1.26 inches

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TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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₨349

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Seychelles.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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