How often does this pH meter need to be re-calibrated and/or how can I tell when it needs to be re-calibrated?

The manufacturer recommends keeping the device probe in a neutral storage solution; the protective tip case/container actually has a 'fill' line for guidance, and it is designed to hold a liquid safely when stored as indicated -- If someone uses distilled or deionized water by itself as a storage solution, the salts contained in the probe tip will dissipate and the probe will then need to be replaced--about $25, plus a fine headache trying to get it right. If you are out of storage solution keeping the probe wet somehow is better than dry--but don't store without the specialized solution for more than a day or so; these are typically $10-$13 for 100ml - 250ml size bottles on Amazon.

Can anyone confirm if this comes pre calibrated?

Mine was, the PH20 unit. Dead on, but I still did the cal to know how. If you use it for pH 8.0 or lower, the 4.00 and 7.00 solutions are perfect-no need for 10.00 test buffer solution. I am AMAZED at how bad my cheapy meters are, and how they disagree with each other and this one.

Can this be used to analyze urine?

Yes, it can tests urine with no problem. You can use the probe cap as a container for the urine.

I will be using this meter once a month. Do I need storage solution for the probe?

Storing the probe in the storage solution helps keep the probe's sensitivity and accuracy. So it's a recommended practice. While storing the probe without any solution will not damage the probe, it's just going to cause the probe to lose its sensitivity and accuracy temporarily. Store the probe in the storage solution again for about 10 minutes, the sensitivity and accuracy can be restored.

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

PH20

Product ID: 732904565

Details

Age Range (Description)
Adult
Brand
Apera
Color
Regular Kit
Display Type
Digital
Included Components
pH standard x
Outer Material
Plastic

💧IP67 waterproof & dustproof

📏±0.1 pH accuracy

🌡️Auto temp compensation 0-50°C

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

£5967.83

Duties & taxes included

In stock

Sold byAmazon UKDelivered 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 UK.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

💧 Stay ahead in water quality with precision that professionals rely on!

BUILT TO LAST - IP67 waterproof design and up to 2,000 hours battery life keep you measuring anywhere.
DUAL DISPLAY POWER - Simultaneous pH and temperature readouts—no extra tools needed.
READY OUT OF THE BOX - Includes calibration solutions and batteries for instant, hassle-free use.
PRECISION YOU CAN TRUST - Ultra-accurate ±0.1 pH readings for flawless water quality control.
SMART STABILITY INDICATOR - Easy-to-read stability mark ensures you never guess your measurement timing.

The Apera PH20 is a professional-grade, pen-type digital pH meter offering ±0.1 pH accuracy and automatic temperature compensation from 0 to 50°C. Featuring a dual LCD display for pH and temperature, IP67 waterproof rating, and up to 2,000 hours of battery life, it’s designed for reliable, on-the-go water quality testing in aquariums, hydroponics, and environmental monitoring. The kit includes calibration solutions, batteries, and a hard case, backed by a 2-year product warranty and 6-month electrode warranty.

Specifications

ASIN	B01ENFOHN8
Additional Features	Waterproof
Age Range Description	Adult
Amazon Bestseller	#33,164 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #64 in Lab pH Meters
Brand Name	Apera Instruments
Color	Regular Kit
Customer Reviews	4.0 4.0 out of 5 stars (8,574)
Display Type	Digital
Global Trade Identification Number	00858718006339
Included Components	pH standard liquid (4.01/6.86) x 1 each, 4 AAA batteries (installed), strap, hard case
Indoor Outdoor Usage	Outdoor
Item Length	218 Millimeters
Item Weight	3.9 Ounces
LowerTemperature Range	32 Degrees Fahrenheit
Manufacturer	アペラインスツルメンツ(Apera Instruments)
Model	PH20
Model Name	PH20
Number of Batteries	4 AAA batteries required. (included)
Outer Material	Plastic
Part Number	AI209
Power Source	Battery Powered
Product Care Instructions	Hand Wash Only
Reusability	Rechargeable
Specification Met	NIST
Style Name	Standard Kit
UPC	858718006339
Unit Count	1 Count
Upper Temperature Range	50 Degrees Celsius
Warranty Description	2 years after purchase, electrode 6 months

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

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months 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.