What do you use to clean electrode?

Instructions say to use distilled water to clean electrodes

Would this be a good tool for an aquarium?

Sure it will read the Ph for your tank

Does it work well for testing ph in a saltwater pool?

I don’t know anything about testing pool water but it will definitely give you the ph between 4.0-10

My pen has gone way out of calibration. Is there a way to calibrate it against an accurate test kit? I.e. just set the pH?

I second the answer but Alix. I thought it could be recalibrated against the standards they provide and I would be back to using the ph tool. Once it started to give me bogus readings I knew I had a new paper weight. I even bought 7.0 fluid so I could check it before each use so I knew the readings were correct. I have extensive experience calibrating thousands of gauges in a railroad machine shop to NIST and audited by the ARR annually. Knowing I have a good accurate tool is important to me. The quality of this tool is below the mark. I am surprised as I own VIVOSUN products that are more reliable so I thought I would give it a chance. It lasted almost a year for me.

Vivosun Ph Meter Digital Ph Tester Pen For Water 141

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Description

🌊 Precision pH testing that fits in your pocket—because your water deserves the best.

COMPACT PORTABLE - Sleek, pocket-sized design ensures you can test water quality anytime, anywhere—perfect for on-the-go pros.
INSTANT P H INSIGHT - Automatic Temperature Compensation delivers near-instant, accurate readings tailored to your environment.
READY OUT OF THE BOX - Includes batteries, calibration powders, and manual so you can start testing immediately—no delays, no fuss.
CRYSTAL CLEAR DISPLAY - Backlit LCD screen guarantees easy, error-free reading even in low-light conditions.
VERSATILE APPLICATION - From pools to hydroponics, labs to aquaculture—one tool for all your pH testing needs.

The VIVOSUN PH Meter Digital Tester Pen offers fast, accurate pH readings with automatic temperature compensation and a backlit LCD display. Lightweight and pocket-sized, it’s ideal for residential and commercial water testing, including pools, spas, hydroponics, and labs. Comes complete with batteries and calibration powders for immediate use.

Specifications

ASIN	B01M5IASHD
Amazon Bestseller	#430,039 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,024 in Lab pH Meters
Brand Name	VIVOSUN
Customer Reviews	3.8 3.8 out of 5 stars (8,146)
Item Weight	0.11 Kilograms
Model Number	4316344538
Part Number	4316344538
Sterility Rating	0.00-14.00
UPC	714119465581

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2040276₫

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In stock

Sold byAmazon VietnamDelivered 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 Vietnam.

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TrustScore 4.5 | 7,300+ reviews

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VIVOSUN PH Meter Digital PH Tester Pen for Water 141

Details

Details

Description

Specifications

Common Questions