---
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: "20792 som"
currency: KGS
in_stock: true
reviews_count: 13
category: "アペラ インスツルメンツ(Apera Instruments)"
url: https://www.desertcart.kg/products/732904565-apera-economy-type-ph-meter-ph20-pen-type-ph-meter
store_origin: KG
region: Kyrgyzstan
---

# ±0.1 pH accuracy IP67 waterproof & dustproof Simultaneous pH & temperature readout 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:** 20792 som
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead in water quality—measure like a pro, anywhere, anytime!

## 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?** 20792 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/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

- • **Ready Out of the Box:** Includes calibration solutions and batteries so you can start testing immediately—no delays, no hassle.
- • **Dual-Display Efficiency:** Monitor pH and temperature simultaneously with automatic temperature compensation—no extra tools needed.
- • **Built to Brave the Elements:** IP67-rated waterproof and dustproof design ensures durability in any environment.
- • **Long-Lasting Power & Reliability:** Up to 2,000 hours of continuous use with included AAA batteries and backed by a 2-year warranty.
- • **Precision that Professionals Trust:** Achieve lab-grade ±0.1 pH accuracy for flawless water quality control.

## Overview

The Apera Economy Type PH20 is a digital pen-type pH meter designed for precise water quality testing in aquariums, hydroponics, and environmental monitoring. Featuring ±0.1 pH accuracy, simultaneous temperature measurement with automatic compensation, and an IP67 waterproof rating, it delivers reliable, professional-grade results. The kit includes calibration solutions, batteries, and a hard case, ensuring immediate use and long-term durability backed by a 2-year warranty.

## Description

Apeline Threadments 20 Series Pocket Testers are economy and have high product technology and provide quick and reliable measurements in general water solution fields such as hydroponics, pools, spars, drinking water making, education, aquariums, water cultivation, water treatment, environmental observation. Automatic calibration up to 3 points, 0-50˚C automatic temperature compensation, accuracy: ±0.1 pH, ±0.5˚C, Measurement range: 0-14 pH The measurement stability mark "Niko-chan" makes it easy to tell when to read the measurement. Tester, 50ml 4.01, 6.86 Calibration Standard Solution, AAA batteries (installed), strap is all in one sturdy hard case. Smart self-diagnostic information warns standard fluid usage and improper calibration. IP67 waterproof and dustproof rating. Up to 2,000 hours of continuous operation with 4 AAA batteries. PH20 is CE and RoHS certified, and manufactured under ISO 9001:2015 certification quality system.

Review: 少々高価ですが、とても正確・安定性・耐久性より信頼があり満足しております 長らく安価のものを使用してきましたが、安定・正確性・耐久性に欠け 多くのディスカスを亡くならせてきました ☆PH計測計の値段に糸目は付けない方が無難だと感じた商品です
Review: 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 |
| Amazon Bestseller | #11,827 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #16 in Lab pH Meters |
| Batteries | 4 AAA batteries required. (included) |
| Batteries Included | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Color | Regular kit |
| Customer Reviews | 4.0 4.0 out of 5 stars (8,512) |
| Date First Available | May 5, 2016 |
| Display Style | Digital |
| Included Components | pH standard liquid (4.01/6.86) x 1 each, 4 AAA batteries (installed), strap, hard case |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 17.8 x 4.1 x 3 cm |
| Item Weight | 110 g |
| Manufacturer | アペラ インスツルメンツ(Apera Instruments) |
| Material | plastic glass |
| Measurement System | default_no_selection_value |
| Part number | AI209 |
| Pattern | Single Item |
| Power source type | Battery Powered |
| Product Dimensions | 17.8 x 4.1 x 3 cm; 110.56 g |
| Size | Regular Kit |
| Special Features | Waterproof |
| Specification met | NIST |
| Style | Standard Kit |

## 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:** Glass
- **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)

## 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

### ⭐⭐⭐⭐⭐ Review
*by 白***猫 on June 16, 2024*

少々高価ですが、とても正確・安定性・耐久性より信頼があり満足しております 長らく安価のものを使用してきましたが、安定・正確性・耐久性に欠け 多くのディスカスを亡くならせてきました ☆PH計測計の値段に糸目は付けない方が無難だと感じた商品です

### ⭐⭐⭐⭐ Review
*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。

### ⭐⭐⭐ Review
*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 Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-03-10*