---
product_id: 732904565
title: "Apera Economy Type pH Meter PH20 Pen-Type pH Meter Digital pH Meter Essential pH Measurement Instrument for Water Quality Testing in Aquariums/Fish Tanks Accuracy: ±0.1 pH/Measurement Range: 0~14.0 pH"
brand: "apera instruments"
price: "71 zł"
currency: PLN
in_stock: false
reviews_count: 8
url: https://www.desertcart.pl/products/732904565-apera-economy-type-ph-meter-ph20-pen-type-ph-meter
store_origin: PL
region: Poland
---

# IP67 waterproof & dustproof ±0.1 pH accuracy Auto temp compensation 0-50°C Apera Economy Type pH Meter PH20 Pen-Type pH Meter Digital pH Meter Essential pH Measurement Instrument for Water Quality Testing in Aquariums/Fish Tanks Accuracy: ±0.1 pH/Measurement Range: 0~14.0 pH

**Brand:** apera instruments
**Price:** 71 zł
**Availability:** ❌ Out of Stock

## Summary

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

## Quick Answers

- **What is this?** Apera Economy Type pH Meter PH20 Pen-Type pH Meter Digital pH Meter Essential pH Measurement Instrument for Water Quality Testing in Aquariums/Fish Tanks Accuracy: ±0.1 pH/Measurement Range: 0~14.0 pH by apera instruments
- **How much does it cost?** 71 zł with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/732904565-apera-economy-type-ph-meter-ph20-pen-type-ph-meter)

## Best For

- apera instruments enthusiasts

## Why This Product

- Trusted apera instruments brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **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.

## Overview

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.

## Description

Appeline Salments 20 Series Pocket Testers are obsessed with high product technology for economy types, offering quick and reliable measurements in common aqueous solution fields such as hydroponics, pools, spas, drinking water building, education, aquariums, aquariums, water treatment, environmental observation and more. Automatic calibration up to 3 points, 0-50ºC automatic temperature compensation, Accuracy: ±0.1 pH, ±0.5˚C, Measurement range: 0-14 pH The measurement stability display mark "Niko-chan" makes it easy to tell when to read measurements. Tester, 1.7 fl oz (50 ml) of 4.01, 6.86 Calibration Standard Liquid, AAA Battery (installed), and Strap is all in one sturdy hard case. Smart self-diagnostic information alerts the use of standard fluids and improper calibration. IP67 waterproof and dustproof rating. 4 AAA batteries provide up to 2,000 hours of continuous operation. PH20 has passed CE and RoHS certification and is manufactured under ISO 9001:2015 certified quality system

Review: アクアリウムに使用問題なし - 2点校正で簡単に正確な数字で 計測できます。 以前、千円程の物を使いましたが かなり時間がかかりましたが こちらだとすぐ出るので助かります。
Review: 検査結果も正確だと思います。 - 普通に使えています。想像通りの商品でした。

## Features

- [A pH measuring instrument used worldwide] We ship hundreds of thousands of units per year, with an desertcart global rating exceeding 8,000 and ★4.5 Comes with a main unit/2-year and electrode/6-month product warranty, so you can use it with confidence for a long time
- pH Meter + Thermometer: The LCD screen displays the pH and temperature simultaneously No need to prepare a separate thermometer, it can check the water temperature, and it also has an automatic temperature compensation function necessary for accurate pH measurement
- 【Reliable pH Measurement】The core composition of the pH meter is a glass electrode that responds quickly to measurements, allowing for free calibration at 1 to 3 points to ensure measurement accuracy
- 【BEGINNER FRIENDLY】The measurement stability display mark makes it easy to know when to read the measurements
- 【Includes accessories】Two 50ml pH standard solutions (pH 4.01 and pH 6.86) are attached, allowing you to start working immediately upon receiving the product

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01ENFOHN8 |
| Additional Features | Waterproof |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Amazon Bestseller | #34,328 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #57 in Lab pH Meters |
| Brand | Apera Instruments |
| Brand Name | Apera Instruments |
| Color | Regular Kit |
| Customer Reviews | 4.0 out of 5 stars 8,546 Your Review |
| 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 |
| Special Feature | Waterproof |
| 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 |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Apera Instruments
- **Color:** Regular Kit
- **Display Type:** Digital
- **Included Components:** pH standard liquid (4.01/6.86) x 1 each, 4 AAA batteries (installed), strap, hard case
- **Outer Material:** Plastic
- **Product Care Instructions:** Hand Wash Only
- **Special Feature:** Waterproof
- **Specification Met:** NIST
- **Unit Count:** 1 Count

## Images

![Apera Economy Type pH Meter PH20 Pen-Type pH Meter Digital pH Meter Essential pH Measurement Instrument for Water Quality Testing in Aquariums/Fish Tanks Accuracy: ±0.1 pH/Measurement Range: 0~14.0 pH - Image 1](https://m.media-amazon.com/images/I/61yOIYdZc7L.jpg)
![Apera Economy Type pH Meter PH20 Pen-Type pH Meter Digital pH Meter Essential pH Measurement Instrument for Water Quality Testing in Aquariums/Fish Tanks Accuracy: ±0.1 pH/Measurement Range: 0~14.0 pH - Image 2](https://m.media-amazon.com/images/I/618oA9KdRAL.jpg)
![Apera Economy Type pH Meter PH20 Pen-Type pH Meter Digital pH Meter Essential pH Measurement Instrument for Water Quality Testing in Aquariums/Fish Tanks Accuracy: ±0.1 pH/Measurement Range: 0~14.0 pH - Image 3](https://m.media-amazon.com/images/I/61U6-xqFElL.jpg)
![Apera Economy Type pH Meter PH20 Pen-Type pH Meter Digital pH Meter Essential pH Measurement Instrument for Water Quality Testing in Aquariums/Fish Tanks Accuracy: ±0.1 pH/Measurement Range: 0~14.0 pH - Image 4](https://m.media-amazon.com/images/I/51LJXOfbauL.jpg)
![Apera Economy Type pH Meter PH20 Pen-Type pH Meter Digital pH Meter Essential pH Measurement Instrument for Water Quality Testing in Aquariums/Fish Tanks Accuracy: ±0.1 pH/Measurement Range: 0~14.0 pH - Image 5](https://m.media-amazon.com/images/I/51xCd3IhKZL.jpg)

## Available Options

This product comes in different **Pattern, Style** options.

## Questions & Answers

**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?**
A: 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?**
A: 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?**
A: 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?**
A: 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ アクアリウムに使用問題なし
*by テ***ル on March 16, 2026*

2点校正で簡単に正確な数字で 計測できます。 以前、千円程の物を使いましたが かなり時間がかかりましたが こちらだとすぐ出るので助かります。

### ⭐⭐⭐⭐ 検査結果も正確だと思います。
*by Y***Y on November 22, 2025*

普通に使えています。想像通りの商品でした。

### ⭐⭐⭐ 測定が容易で正確
*by A***ー on July 29, 2021*

ケースつきでコンパクト、測定が簡単にできる。校正液も付属しており、便利です。

## 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

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-04-24*