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.

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

Help Track order

Account Cart

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

Help Track order

Account Cart

VIVOSUN Digital pH Meter 0.01 Accuracy Pen Tester for Water Hydroponics

Product ID: 40679482

Details

Brand
VIVOSUN
Item dimensions L x W x H
6.23 x 1.22 x
Number of Items
1
Unit Count
1 Count

💡Backlit LCD for clear readings

📏±0.01 pH ultra-precise accuracy

🌡️ATC auto temp compensation

NZ$56

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

Description

💧 Stay ahead with precision—because your water deserves the best!

COMPACT READY TO GO - Pocket-sized, lightweight design with batteries included—perfect for on-the-move testing in any environment.
EFFORTLESS CALIBRATION - Advanced auto-calibration technology guarantees fast, accurate results every time—no guesswork needed.
SMART TEMPERATURE ADAPTATION - Automatic Temperature Compensation (ATC) ensures instant, reliable pH readings regardless of water temp.
VERSATILE APPLICATION POWERHOUSE - Ideal for hydroponics, aquariums, pools, labs, and more—join thousands of pros optimizing their water quality.
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 easy auto-calibration. Its compact, lightweight design features a backlit LCD for clear readings in any setting. Perfectly suited for hydroponics, aquaculture, pools, labs, and more, this UL-certified pen tester comes ready with batteries and calibration powders, empowering you to maintain optimal water quality effortlessly.

Specifications

ASIN	B0D62NJWV7
Best Sellers Rank	#788 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Lab pH Meters
Brand Name	VIVOSUN
Customer Reviews	4.0 4.0 out of 5 stars (34,015)
Included Components	Test pH Value
Item Dimensions	6.23 x 1.22 x 0.65 inches
Item Highlight	±0.01 pH Accuracy, ATC, Auto Calibration, Backlit LCD, Memory, Compact, UL Certified, for Hydroponics Aquarium Pool Drinking
Item Type Name	pH Meter
Manufacturer	VIVOSUN
Model	305141-PEN
Number of Items	1
Number of Packs	1
Part Number	305141-PEN
Unit Count	1 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

NZ$56

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

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews