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Apera Instruments

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Product ID: 255568585

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Details

Brand
Apera
Special features
Waterproof
Colour
Regular Kit
Age range (description)
Adult
Included components
PH20 Value pH

⚡±0.1 pH ultra-precise accuracy

💧Waterproof for rugged use

🔋2000 hrs continuous battery life

Frequently Bought Together

APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy

General Hydroponics pH Control Kit For A Balanced Nutrient Solution

Apera Instruments AI213 Value Series TDS20 Waterproof TDS Pocket Tester kit, Accuracy: ±1% F.S, 2-Point Auto. Calibration

Description

💼 Elevate your precision game with the pH tester that works as hard as you do.

READY WHEN YOU ARE - Includes pH 4 & 7 buffers and a rugged carrying case for on-the-go professionals who demand readiness.
SMART AUTO CALIBRATION - Auto buffer recognition and temperature compensation guarantee consistent, reliable readings without the guesswork.
LONG LASTING PERFORMANCE - Up to 2000 hours of continuous operation powered by included AAA batteries—stay productive without interruptions.
BUILT TO BRAVE THE ELEMENTS - Fully waterproof design means no fear of spills or outdoor conditions—test anywhere, anytime.
PRECISION THAT POWERS DECISIONS - Experience lab-grade ±0.1 pH accuracy for flawless measurements every time.

The Apera Instruments AI209 PH20 is a waterproof, highly accurate pH tester kit featuring ±0.1 pH precision, automatic calibration with buffer recognition, and temperature compensation. Designed for professionals, it offers up to 2000 hours of continuous use powered by AAA batteries and comes complete with calibration buffers and a rugged carrying case for reliable, on-the-go testing.

Specifications

Manufacturer	Apera Instruments
Brand	Apera Instruments
Model	PH20
Product Dimensions	17.8 x 4.1 x 3 cm; 110.56 g
Batteries	4 AAA batteries required. (included)
Item model number	PH20
Manufacturer Part Number	AI209
Special Features	Waterproof
Item Weight	110 g

Have a Question? See What Others Asked

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

Can anyone confirm if this comes pre calibrated?

Can this be used to analyze urine?

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

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