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, 0.01pH High Accuracy Pen Type pH Tester for Hydroponics, Household Drinking, Pool and Aquarium, Yellow, UL Certified

VIVOSUN Digital pH Meter, 0.01pH High Accuracy Pen Type pH Tester for Hydroponics, Household Drinking, Pool and Aquarium, Yellow, UL Certified

Product ID: 40679482

Details

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

📏0.01 pH precision

🔋Built-in batteries included

🌡️Automatic Temperature Compensation

€ 20.30

Duties & taxes included

In stock

Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌟 Stay ahead of the curve with precision pH testing in your pocket!

READY TO GO - Comes complete with batteries, calibration powders, and a manual—no extra purchases needed
PINPOINT ACCURACY - Ultra-fine 0.01 pH resolution for flawless readings every time
USER FRIENDLY DESIGN - Compact, lightweight pen with a clear backlit LCD for effortless use day or night
VERSATILE APPLICATION - Perfect for hydroponics, pools, aquariums, drinking water, and labs—be the expert in any environment
SMART TEMPERATURE ADJUSTMENT - ATC technology instantly calibrates for water temperature variations

The VIVOSUN Digital pH Meter delivers lab-grade 0.01 pH accuracy with automatic temperature compensation, housed in a sleek, portable pen design. UL certified and ready out-of-the-box with batteries and calibration kits, it’s engineered for professionals and enthusiasts managing hydroponics, pools, aquariums, and drinking water quality.

Specifications

ASIN	B01M5IASHD
Best Sellers Rank	#2,546 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Lab pH Meters
Brand	VIVOSUN
Brand Name	VIVOSUN
Customer Reviews	3.8 out of 5 stars 8,786 Reviews
Included Components	Batteries included
Manufacturer	VIVOSUN
Material Type	ABS
Model Number	4316344538
Number of Items	1
Part Number	4316344538
Ph Range	0.00-14.00
Sterility Rating	0.00-14.00
UPC	714119465581
Unit Count	1.0 Count

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