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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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Digital PH Meter for Water, 0.01ph High Accuracy Pen Type PH Tester for Hydroponics, Household Drinking, Pool and Aquarium

Product ID: 287514540

Details

Brand
VIVOSUN
Manufacturer
VIVOSUN
Unit count
1 Count
pH range
0.00-14.00

📏0.01 pH resolution

🌡️Automatic Temperature Compensation

🖥️Clear backlit LCD display

$47.88

Duties & taxes included

In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Stay sharp, stay balanced — master your water’s pH like a pro!

COMPACT PORTABLE - Sleek pen-size design fits perfectly in your pocket for on-the-go testing anytime, anywhere.
EFFORTLESS CALIBRATION - Advanced tech with easy calibration means no guesswork—just fast, accurate results.
VERSATILE WATER TESTING - Perfect for hydroponics, aquariums, pools, and household water—be the water quality guru in your circle.
PRECISION AT YOUR FINGERTIPS - Ultra-fine 0.01 pH resolution for lab-grade accuracy in every test.
SMART TEMPERATURE ADAPTATION - Automatic Temperature Compensation ensures instant, reliable readings regardless of water temp.

The VIVOSUN Digital pH Meter is a lightweight, pocket-sized pen tester delivering precise 0.01 pH resolution with automatic temperature compensation. Ideal for hydroponics, aquariums, pools, and household water, it features a clear backlit LCD for easy reading and simple calibration, empowering professionals and enthusiasts to monitor water quality with lab-grade accuracy.

Specifications

ASIN	B01M5IASHD
Brand	VIVOSUN
Brand Name	VIVOSUN
Customer Reviews	3.8 out of 5 stars 8,320 Reviews
Included Components	Batteries included
Manufacturer	VIVOSUN
Material Type	ABS
Model Number	4316344538
Number of Items	1
Part Number	4316344538
Recommended Uses For Product	Aquarium, ph Test, Spa, Swimming Pool, Home Water, Hot Tub, Tap Water, Well Water, Water Test, pH Test, Aquaculture, Hydroponics, Liquid Food, Laboratory
Recommended uses for product	Aquarium, ph Test, Spa, Swimming Pool, Home Water, Hot Tub, Tap Water, Well Water, Water Test, pH Test, Aquaculture, Hydroponics, Liquid Food, Laboratory Recommended uses for product Aquarium, ph Test, Spa, Swimming Pool, Home Water, Hot Tub, Tap Water, Well Water, Water Test, pH Test, Aquaculture, Hydroponics, Liquid Food, Laboratory See more
Sterility Rating	0.00-14.00
UPC	714119465581
Unit Count	1 Count
Unit count	1 Count
pH range	0.00-14.00

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