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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💧 Stay ahead of the curve with precision pH insights in your pocket!

COMPACT PORTABLE - Sleek pocket-sized design fits your on-the-go lifestyle without weighing you down.
PINPOINT PRECISION - Experience lab-grade 0.01 pH accuracy for flawless water quality control.
CRYSTAL CLEAR DISPLAY - Backlit LCD screen ensures effortless reading in any lighting condition.
READY TO USE OUT OF THE BOX - Includes batteries and calibration powders so you never miss a beat.
SMART TEMPERATURE ADJUSTMENT - ATC technology delivers instant, temperature-corrected pH readings every time.

The VIVOSUN Digital pH Meter is a lightweight, pocket-sized pen tester offering ultra-precise 0.01 pH resolution and automatic temperature compensation. Ideal for hydroponics, aquariums, pools, and household water testing, it features a backlit LCD for easy reading and comes complete with batteries and calibration powders for immediate use.

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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.

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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.

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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.

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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.

Bs.338

Duties & taxes incl.

Boliviastore

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

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

2 weeks ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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Color	Yellow
Size	6.1x1.22 Inch
Length	6.5 inches
Weight	50 Grams
Width	1.22 inches
Material Type	ABS
Number of Items	1
Power Source	Battery-powered
Included Components	Batteries included
Batteries Included?	Yes
Brand	VIVOSUN
Manufacturer	VIVOSUN
Item model number	4316344538
Package Dimensions	16.1 x 5.2 x 3.2 cm; 20 g
ASIN	B01M5IASHD

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

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