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.

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VIVOSUN Digital pH Meter 0.01 Accuracy Pen Tester for Water Hydroponics

VIVOSUN Digital pH Meter 0.01 Accuracy Pen Tester for Water Hydroponics

Product ID: 40679482

Details

Brand
VIVOSUN
Manufacturer
VIVOSUN
Ph Range
0.00-14.00
UPC
714119465581
Unit Count
1 Count

💡Backlit LCD for clear readings anytime

📏±0.01 pH ultra-precise accuracy

🌡️Automatic Temperature Compensation (ATC)

MX$465

Duties & taxes included

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Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📊 Elevate your water testing game with pinpoint precision and instant insights!

COMPACT READY TO GO - Pocket-sized, lightweight design with batteries included—perfect for on-the-move testing.
EFFORTLESS CALIBRATION USE - Advanced auto-calibration and intuitive LCD display make testing fast and foolproof.
SMART TEMPERATURE ADAPTATION - ATC technology instantly adjusts readings to water temperature for reliable results.
VERSATILE FOR EVERY ENVIRONMENT - Ideal for hydroponics, aquariums, pools, labs, and more—be the expert in any setting.
PRECISION THAT PROFESSIONALS TRUST - Achieve lab-grade ±0.01 pH accuracy for flawless water quality control.

The VIVOSUN Digital pH Meter delivers professional-grade ±0.01 accuracy with automatic temperature compensation and a backlit LCD for clear, fast readings. Compact and lightweight, it’s calibrated for diverse applications including hydroponics, aquaculture, pools, and labs. Batteries and calibration powders included for immediate use.

Specifications

ASIN	B01M5IASHD
Best Sellers Rank	#1,730 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Lab pH Meters
Brand Name	VIVOSUN
Customer Reviews	3.8 3.8 out of 5 stars (8,891)
Included Components	Batteries included
Manufacturer	VIVOSUN
Material Type	ABS
Model Number	4316344538
Number of Items	1
Part Number	4316344538
Sterility Rating	0.00-14.00
UPC	714119465581
Unit Count	1 Count

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MX$465

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered 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 Mexico.

Secure transaction

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