---
product_id: 730760946
title: "Bluelab PENPH Pen, pH Measuring Instrument (Waterproof), Digital Paper Meter, Hydroponics, Water Quality Inspection, Home Vegetable Gardening"
brand: "bluelab"
price: "VT2425"
currency: VUV
in_stock: false
reviews_count: 7
url: https://www.desertcart.vu/products/730760946-bluelab-penph-pen-ph-measuring-instrument-waterproof-digital-paper-meter
store_origin: VU
region: Vanuatu
---

# Auto temperature compensation Waterproof & floats if dropped Auto-off & calibration reminders Bluelab PENPH Pen, pH Measuring Instrument (Waterproof), Digital Paper Meter, Hydroponics, Water Quality Inspection, Home Vegetable Gardening

**Brand:** bluelab
**Price:** VT2425
**Availability:** ❌ Out of Stock

## Summary

> 💧 Stay ahead in your garden game with precision that floats your boat!

## Quick Answers

- **What is this?** Bluelab PENPH Pen, pH Measuring Instrument (Waterproof), Digital Paper Meter, Hydroponics, Water Quality Inspection, Home Vegetable Gardening by bluelab
- **How much does it cost?** VT2425 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/730760946-bluelab-penph-pen-ph-measuring-instrument-waterproof-digital-paper-meter)

## Best For

- bluelab enthusiasts

## Why This Product

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

## Key Features

- • **Smart & Efficient:** Auto temperature compensation and calibration reminders keep your readings flawless.
- • **Precision pH Mastery:** Double junction probe ensures lab-grade accuracy beyond test strips.
- • **Built for the Elements:** Fully waterproof design with floatation—never worry about accidental drops again.
- • **Long-lasting Performance:** Durable build with battery and auto-off features for extended field use.
- • **Complete Hydroponic Control:** Pair with Blue Lab’s soil acidometer and conductivity meter for ultimate nutrient management.

## Overview

The Bluelab PENPH pH Pen is a waterproof, digital pH meter designed for hydroponics, gardening, and water quality inspection. Featuring a double junction probe for precise measurements, automatic temperature compensation, and smart reminders, it offers reliable, professional-grade pH monitoring. Lightweight and durable, it floats if dropped and includes AAA batteries, making it an essential tool for millennial growers seeking effortless nutrient management.

## Description

desertcart.co.jp: Bluelab PENPH Pen, pH Measuring Instrument (Waterproof), Digital Paper Meter, Hydroponics, Water Quality Inspection, Home Vegetable Gardening : Industrial & Scientific

Review: Good - Good
Review: その他の商品も販売してほしい

## Features

- Measure acid and alkaline levels in liquid and measure the increase and decrease of pH levels. Main uses are hydroponic cultivation, gardening, home gardening, gardening, water quality inspection, etc
- This pH meter has automatic temperature compensation, calibration reminder, auto-off, battery reminder, temperature measurement. Completely waterproof, durable and floats in liquid if dropped
- The double junction protects the probe from contamination and allows for long life of the product itself, allowing for more accurate p H measurement than Lithomas test paper. Regular cleaning is recommended
- Combined with Blue Lab Soil Acid Meters and Conductivity Meters for Efficient Nutrition Management of Plants and Vegetables. Includes AAA batteries, strap, and pH standard fluid, probe care kit sold separately. Packaging may vary slightly. Instructions are in English
- Designed and assembled by Blue Lab in New Zealand, the industry leader in hydroponic testing equipment on site and imported components. Comes with a 1-year limited written warranty with proof of purchase. Please visit Bluelab's website for full Terms of Use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005POOJHG |
| Amazon Bestseller | #352,777 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #841 in Lab pH Meters |
| Brand Name | Bluelab |
| Customer Reviews | 4.4 4.4 out of 5 stars (4,568) |
| Global Trade Identification Number | 09421024920234 |
| Item Dimensions | 20.3 x 5.5 x 2.5 cm |
| Item Weight | 122 g |
| Model | pH Pen |
| Part Number | PENPH |
| UPC | 706842510010 715706332132 |

## Product Details

- **Brand:** Bluelab
- **Global Trade Identification Number:** 09421024920234
- **Item Weight:** 122 g
- **Item dimensions L x W x H:** 20.3 x 5.5 x 2.5 cm
- **UPC:** 706842510010 715706332132

## Images

![Bluelab PENPH Pen, pH Measuring Instrument (Waterproof), Digital Paper Meter, Hydroponics, Water Quality Inspection, Home Vegetable Gardening - Image 1](https://m.media-amazon.com/images/I/71NiAJy-ZqL.jpg)
![Bluelab PENPH Pen, pH Measuring Instrument (Waterproof), Digital Paper Meter, Hydroponics, Water Quality Inspection, Home Vegetable Gardening - Image 2](https://m.media-amazon.com/images/I/71vU2IYDj-L.jpg)
![Bluelab PENPH Pen, pH Measuring Instrument (Waterproof), Digital Paper Meter, Hydroponics, Water Quality Inspection, Home Vegetable Gardening - Image 3](https://m.media-amazon.com/images/I/71oOTeNUWpL.jpg)
![Bluelab PENPH Pen, pH Measuring Instrument (Waterproof), Digital Paper Meter, Hydroponics, Water Quality Inspection, Home Vegetable Gardening - Image 4](https://m.media-amazon.com/images/I/71vvw6UTTTL.jpg)
![Bluelab PENPH Pen, pH Measuring Instrument (Waterproof), Digital Paper Meter, Hydroponics, Water Quality Inspection, Home Vegetable Gardening - Image 5](https://m.media-amazon.com/images/I/715ityj8IGL.jpg)

## Questions & Answers

**Q: Why should I choose the Bluelab pH pen over others?**
A: The probe quality. Highly accurate, compensates for temp & is fast to a stable reading. It's a double junction probe, so it's durable. And it's full of thoughtful touches (the ring on top, the storage cap, the calibration indicator to name a few).

**Q: Other pens come with a hard carry case & calibration solutions in plastic bottles. Yours does not. Why is that?**
A: Great question. We have made the deliberate choice to make our packaging as sustainable as possible. To that end, our packaging is all fully recyclable, with no hard plastics or styrofoam inserts.

**Q: How does Bluelab make calibration super easy?**
A: Calibrating is an easy & fast process! Each pen includes calibration solutions & clear instructions. A check mark appears when the pen is calibrated. When the pen loses calibration, the check mark disappears, informing you it's time to recalibrate.

**Q: I sometimes see a white crust built up on the end of the pen. What is this?**
A: This is very common in pH meters & is nothing to worry about. The storage solution used to hydrate your pen (and extend its longevity) is potassium salt, which sometimes dries as a white crust on your probe. Simply rinse this away under water.

**Q: Can I use the pH Pen to measure the pH of tap water, distilled water, or reverse-osmosis water?**
A: No. For distilled & RO water there aren't enough dissolved ions (salts) for a stable pH reading. For tap water, w/o sufficient dissolved minerals, the answer is also no. Adding a few drops of KCL storage solution may work to enable a stable reading.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by N***N on February 3, 2023*

Good

### ⭐⭐⭐⭐⭐ Review
*by な***ん on November 26, 2022*

その他の商品も販売してほしい

### ⭐⭐⭐⭐⭐ Review
*by J***Z on September 19, 2022*

Me gusto, es fácil de calibrar. Te avisa cuando se necesita calibrar, lo único difícil es conseguir el humectador de sonda. Pero de ahí en más es un gran aparato.🤘🏼

## Frequently Bought Together

- bluelab pH Pen - ± 0.1 pH Accurate, Durable Double Junction Probe, Waterproof & Floats, Auto Temperature Compensation, Easy Calibration - Made in NZ
- Bluelab pH 4.0 & 7.0 Calibration Solution Kit - pH Meter & pH Pen Calibration for Balanced Nutrient Solution NIST Traceable | Hydroponics, Gardening & Growing Tents (500 ml/ 16.9 Fl Oz Each)
- Bluelab STSOL120 KCL Storage Solution 120ml pH Probe and Pen, Maintain Meters Used for Water, Soil, and Hydroponic System or Indoor Plant Grow White

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-05*