---
product_id: 640372385
title: "Ruolan PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium (Yellow)"
brand: "ruolan"
price: "S/.126"
currency: PEN
in_stock: true
category: "Ruolan"
url: https://www.desertcart.pe/products/640372385-ruolan-ph-meter-for-water-hydroponics-digital-ph-tester-pen
store_origin: PE
region: Peru
---

# pocket-sized portability 0.01 pH precision 3 calibration kits included Ruolan PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium (Yellow)

**Brand:** ruolan
**Price:** S/.126
**Availability:** ✅ In Stock

## Summary

> 💧 Stay sharp, stay balanced—measure pH like a pro, wherever life takes you!

## Quick Answers

- **What is this?** Ruolan PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium (Yellow) by ruolan
- **How much does it cost?** S/.126 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/640372385-ruolan-ph-meter-for-water-hydroponics-digital-ph-tester-pen)

## Best For

- ruolan enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Ready:** Sleek, pocket-sized design lets you monitor pH anytime, anywhere—from poolside to hydroponics lab.
- • **Calibrated Confidence:** Includes 3 calibration powders to ensure your measurements are always spot-on—no guesswork.
- • **Precision that Matters:** Ultra-sensitive electrode delivers 0.01 pH accuracy for flawless water quality readings.
- • **Versatile Life Enhancer:** Perfect for drinking water, aquariums, pools, spas, and hydroponics—your all-in-one water quality guardian.
- • **Smart Temperature Adaptation:** Auto temperature compensation guarantees reliable results regardless of water conditions.

## Overview

The Ruolan PH Meter is a high-accuracy digital tester pen with 0.01 precision and a 0-14 pH range, designed for professionals and enthusiasts alike. It features three included calibration kits, automatic temperature compensation, and a compact, pocket-friendly design, making it ideal for testing water quality in drinking water, pools, aquariums, and hydroponic systems.

## Description

Instructions for use of PH calibration powder:Calibration powder: pH standard solid substance. It can be used after adding water. Suitable for the calibration of any type of ph meter. Each package can prepare 250ML standard solution. (Be sure to add water according to the required ratio, otherwise it will affect the accuracy of the calibration and increase the error)Matters needing attention:PH meter has been calibrated before delivery, the buyer does not need to re-calibrate after receiving the goods!In the following cases, the PH meter must be re-calibrated:1. Has been used for a long time after calibration;2. Special electrode use Frequently;3. The measurement accuracy requirements are relatively high.Precautions:Please note that the PH pen probe is a glass product and is a fragile product. Please do not collide with things. Once the damage is not replaceable, you must protect the probe. After use, use absorbent paper to gently absorb the water on the probe.Battery installation:If the backlight brightness drops significantly or the display value is blurred, the battery should be replaced. When replacing the battery, just pull out the battery compartment and replace it. NoteThe polarity of the battery.Standard configuration1XPH meter, 3X calibration powder, 1X gift box, 1X instruction manual

## Features

- 【3 calibration packages】Let you no longer worry about whether the ph meter is accurate, the 3 calibration packages we give can help you test whether our ph meter is accurate.
- 【Mini Size】The mini size ph meter we designed allows you to easily put it in your pocket, so you can take measurements anytime, anywhere. It can help you test it whether you take it to the pool, on a trip, to the beach or camping.
- 【Family Essentials】As a tool to improve the quality of life. Can be used to test drinking water, swimming pools, PH balance in aquarium, RO system, spa or hydroponics. Basically all the environments that need to test PH value can use this tester to get accurate data.
- 【High Accuracy】ph tester has a sensitive electrode sensor ,simply press "ON", It only takes a few seconds for your result to appear on screen.read accurate pH levels. The included detailed manual will show you how to get the best accurate and stable reading.
- 【Automatic Temperature Compensation】No more need to take care about the temperature of testing liquid,as the Ph Meter Has an Auto Temprature Compensation Feature That Adjusts to Water Temperatures and Water Quality.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08HLXBBK4 |
| ASIN  | B08HLXBBK4 |
| Batteries | 1 CR2 batteries required. |
| Batteries  | 1 CR2 batteries required. |
| Batteries Included? | No |
| Batteries Required? | No |
| Color | Yellow |
| Customer Reviews | 3.9 3.9 out of 5 stars (8,481) |
| Customer reviews | 3.9 3.9 out of 5 stars (8,481) |
| Date First Available | 10 October 2020 |
| Date First Available  | 10 October 2020 |
| Item Weight | 100 g |
| Manufacturer | Ruolan |
| Manufacturer  | Ruolan |
| Manufacturer reference | ILEE |
| Manufacturer reference  | ILEE |
| Package Dimensions | 17.4 x 5.41 x 3.2 cm; 100 g |
| Package Dimensions  | 17.4 x 5.41 x 3.2 cm; 100 g |
| Part number | ILEE |
| Style | pH Meter Yellow |

## Images

![Ruolan PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium (Yellow) - Image 1](https://m.media-amazon.com/images/I/61BUiZjq72L.jpg)
![Ruolan PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium (Yellow) - Image 2](https://m.media-amazon.com/images/I/71nlnulzyOL.jpg)
![Ruolan PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium (Yellow) - Image 3](https://m.media-amazon.com/images/I/71nuMxLcmjL.jpg)
![Ruolan PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium (Yellow) - Image 4](https://m.media-amazon.com/images/I/71ARcb1tWJL.jpg)
![Ruolan PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium (Yellow) - Image 5](https://m.media-amazon.com/images/I/718yHTTwlzL.jpg)

## Available Options

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

## Questions & Answers

**Q: How do I get warranty support? I have had this for 3 months and it quit working, just shows zero with an occasional flash of random numbers.**
A: It's the horrible design in the battery tray.  The pressure that keeps the metal contacts down also lifts the entire battery tray away from it's case making it lose contact.  You can try to press them back but it will only happen again.

**Q: can i get more Calibration powder?**
A: Yes, available on Amazon. I use liquid ph 7 which I think is more economical and much simpler to use.

**Q: where are the batteries?  it says included. are they installed inside?  Mine won't turn on**
A: Yes they are installed. They are most likely dead, both meters I received came with dead batteries. The thin black cap comes off if the push in the release on the back and pull it up.

**Q: Can this be used to test the pH of automotive coolant in your radiator??**
A: Yes. It’s a general liquid ph meter

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-06-18*