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

Product ID: 40679482

Details

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

🔋Built-in batteries for instant use

⚖️±0.01 pH ultra-precision

🌡️Automatic Temperature Compensation (ATC)

NZ$32

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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Description

🌿 Master your grow game with pinpoint pH precision!

COMPACT READY TO GO - Pocket-sized, lightweight design with included batteries means you’re always prepared on the move.
SMART TEMPERATURE ADAPTATION - ATC technology instantly adjusts readings to water temperature for reliable results every time.
VERSATILE FOR EVERY ENVIRONMENT - Perfect for hydroponics, aquariums, pools, labs, and liquid food testing—your all-in-one pH solution.
PRECISION THAT PROFESSIONALS TRUST - Achieve lab-grade ±0.01 pH accuracy for flawless water and hydroponic testing.
EFFORTLESS CALIBRATION READABILITY - Auto calibration paired with a crisp backlit LCD screen ensures fast, clear, and accurate measurements.

The VIVOSUN Digital pH Meter delivers professional-grade ±0.01 accuracy with automatic temperature compensation and easy auto calibration. Its compact, lightweight design features a backlit LCD for clear readings in any environment, making it ideal for hydroponics, aquaculture, pools, and labs. Ready to use out of the box with included batteries and calibration powders, it’s the essential tool for millennial growers and professionals seeking reliable, on-the-go pH testing.

Specifications

Asin	B01M5IASHD
Best Sellers Rank	#1,712 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 (8,919) 3.8 out of 5 stars
Included Components	Batteries included
Item Highlight	±0.01 pH Accuracy, ATC, Auto Calibration, Backlit LCD, Memory, Compact, UL Certified, for Hydroponics Aquarium Pool Drinking
Item Weight	0.11 kg
Manufacturer	VIVOSUN
Material Type	ABS
Model Number	4316344538
Number Of Items	1
Part Number	4316344538
Sterility Rating	0.00-14.00
Unit Count	1 Count
Upc	714119465581

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NZ$32

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered 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 New Zealand.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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