---
product_id: 643341385
title: "pH Meter Kit, High Precision Digital pH Pen with ±0.1 pH Accuracy, Nutrient Test pH Meter for Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools"
brand: "ac infinity"
price: "£65.19"
currency: GBP
in_stock: true
reviews_count: 13
category: "Ac Infinity"
url: https://www.desertcart.co.uk/products/643341385-ph-meter-kit-high-precision-digital-ph-pen-with-0
store_origin: GB
region: United Kingdom
---

# IP67 waterproof & dustproof Instant digital readings ±0.1 pH accuracy pH Meter Kit, High Precision Digital pH Pen with ±0.1 pH Accuracy, Nutrient Test pH Meter for Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools

**Brand:** ac infinity
**Price:** £65.19
**Availability:** ✅ In Stock

## Summary

> 🌿 Master your water, master your world.

## Quick Answers

- **What is this?** pH Meter Kit, High Precision Digital pH Pen with ±0.1 pH Accuracy, Nutrient Test pH Meter for Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools by ac infinity
- **How much does it cost?** £65.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/643341385-ph-meter-kit-high-precision-digital-ph-pen-with-0)

## Best For

- ac infinity enthusiasts

## Why This Product

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

## Key Features

- • **Built to Brave the Elements:** IP67-rated sealing means no dust, moisture, or heat can slow down your monitoring game.
- • **Instant Insights, Zero Wait:** Get real-time pH and temperature readings with a responsive lithium glass sensor probe.
- • **Precision that Powers Growth:** Lab-grade ±0.1 accuracy ensures your plants and water systems thrive with perfect pH balance.
- • **Versatile Water Quality Master:** Perfect for hydroponics, aquariums, pools, spas, and even homebrewing—one tool, endless applications.
- • **Complete Calibration Confidence:** Includes 4.00 & 7.00 pH solutions for hassle-free, long-lasting precision every time.

## Overview

The AC Infinity pH Meter Kit is a high-precision digital pen designed for accurate water quality testing with ±0.1 pH accuracy. Featuring an IP67 waterproof and dustproof rating, it delivers instant readings via a sensitive lithium glass membrane sensor. Ideal for hydroponics, gardening, aquariums, pools, and homebrewing, it comes with calibration solutions to maintain lab-grade accuracy and durability in demanding environments.

## Description

Product DescriptionA digital water quality meter designed to measure water’s acidity, alkalinity, and temperature to help optimize its quality for gardening and water treatment applications. The highly responsive sensor probe utilizes a lithium glass membrane to instantly determine pH readings with highly precise ±0.1 accuracy. This pH pen tester for water features an IP-67 rating, specially sealed to withstand moisture and heat, as well as block out intrusive dust and sand. For further protection, the hydroponic pH meter is built with a sensor shield to safeguard your probe in between uses. The included 4.00 pH and 7.00 pH calibration solutions ensure consistently accurate measurements, the former also supporting proper storage conditions to help extend the lifespan of the pH and PPM meter.ApplicationsThis fast-acting nutrient test alkalinity meter will help you determine how well your water uptakes nutrients. Fit for use as a pH meter for plants in horticultural settings like gardens, grow tents, greenhouses, and hydroponics systems. In addition, its application spans far beyond plant growing, capable of being a general pH level tester for water used in swimming pools, spas, aquarium fish tanks, and beverage homebrewing applications to help determine water safety.

Review: Ph tester - Works great no Complaints here
Review: The best pH meter you’re gonna find for the price range - Very nice item I really like it. I only wish they would let you know that if you purchase off desertcart, it does not apply to their reward system so if you’re looking to get anything off of their rewards program purchasing through desertcart, just buy from the website I had to learn that the hard way spending over $1500 on AC Infinity equipment off desertcart with nothing to show for it as far as the rewards go.

## Features

- A pH reader for water quality assessment designed to help monitor and maintain proper pH levels.
- Measures the acidity, alkalinity, and temperature of water for gardens, aquariums, pools, and more.
- Sensor probe with sensitive glass membrane delivers instant pH readings with high accuracy.
- IP-67 rated to be sealed from high-volume moisture, dust, and sand; can also withstand high levels of heat.
- Lab-grade pH monitor testing kit includes ready-to-use 4.00 & 7.00 solutions for long-lasting precision.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CLQX7TFY |
| Best Sellers Rank | #21,350 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #25 in Lab pH Meters |
| Brand | AC Infinity |
| Brand Name | AC Infinity |
| Customer Reviews | 4.4 out of 5 stars 254 Reviews |
| Included Components | pH Meter, Calibration Solutions |
| Manufacturer | AC Infinity |
| Material | Glass |
| Material Type | Glass |
| Measurement Accuracy | ±0.1 |
| Model | AC-PHM3 |
| Output Type | Digital |
| Part Number | AC-PHM3 |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specific Uses For Product | gardening, aquariums, pools, homebrewing, horticultural settings, swimming pools, spas, aquarium fish tanks, beverage homebrewing applications Specific Uses For Product gardening, aquariums, pools, homebrewing, horticultural settings, swimming pools, spas, aquarium fish tanks, beverage homebrewing applications See more |
| Style | Digital |
| Style Name | Digital |
| UPC | 819137024205 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** AC Infinity
- **Material:** Glass
- **Measurement Accuracy:** ±0.1
- **Output Type:** Digital
- **Style:** Digital

## Images

![pH Meter Kit, High Precision Digital pH Pen with ±0.1 pH Accuracy, Nutrient Test pH Meter for Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools - Image 1](https://m.media-amazon.com/images/I/51Kjg2pjDvL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Ph tester
*by A***R on June 1, 2026*

Works great no Complaints here

### ⭐⭐⭐⭐⭐ The best pH meter you’re gonna find for the price range
*by J***E on May 10, 2026*

Very nice item I really like it. I only wish they would let you know that if you purchase off Amazon, it does not apply to their reward system so if you’re looking to get anything off of their rewards program purchasing through Amazon, just buy from the website I had to learn that the hard way spending over $1500 on AC Infinity equipment off Amazon with nothing to show for it as far as the rewards go.

### ⭐⭐⭐⭐⭐ AC Infnity does it again top notch merchandise
*by K***. on March 5, 2025*

AC infinity is always on point with heir merchandise,this ac infinity ph pen accuracy is on point it’s functionality & is very easy to use all ac infinity products are built with quality & it worth the value of its money it’s sleek appearance is like no other

## Frequently Bought Together

- AC Infinity pH Meter Kit, High Precision Digital pH Pen with ±0.1 pH Accuracy, Nutrient Test pH Meter for Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools
- AC Infinity CLOUDFORGE T3, Plant Humidifier 4.5L with VPD Humidity Controls, 10-Level Precision Vaporizer, Extendable Targeting Hose and No-Leak Seal for Grow Tents

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-26*