---
product_id: 257558169
title: "PH-200 Waterproof pH Meter, 0-14.00 pH Range, 0.01 pH Resolution, +/- 0.02 pH Readout Accuracy"
brand: "hm digital"
price: "HK$828"
currency: HKD
in_stock: true
reviews_count: 7
category: "Hm Digital"
url: https://www.desertcart.hk/products/257558169-ph-200-waterproof-ph-meter-0-14-00-ph-range
store_origin: HK
region: Hong Kong
---

# IP-67 waterproof rating ±0.02 pH accuracy 0-80°C temp range PH-200 Waterproof pH Meter, 0-14.00 pH Range, 0.01 pH Resolution, +/- 0.02 pH Readout Accuracy

**Brand:** hm digital
**Price:** HK$828
**Availability:** ✅ In Stock

## Summary

> 💧 Stay sharp, stay precise — the pH meter that works as hard as you do.

## Quick Answers

- **What is this?** PH-200 Waterproof pH Meter, 0-14.00 pH Range, 0.01 pH Resolution, +/- 0.02 pH Readout Accuracy by hm digital
- **How much does it cost?** HK$828 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/257558169-ph-200-waterproof-ph-meter-0-14-00-ph-range)

## Best For

- hm digital enthusiasts

## Why This Product

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

## Key Features

- • **Dual Measurement Power:** Measures both pH and temperature for comprehensive water quality insights.
- • **Built to Brave the Elements:** IP-67 waterproof housing means no fear of spills or splashes on the job.
- • **Energy-Savvy & User-Friendly:** Auto-off, data-hold, and low-battery indicator maximize efficiency and ease.
- • **Smart Calibration, Zero Hassle:** Auto-ranging 3-point calibration with digital fine-tuning keeps your readings flawless.
- • **Precision that Professionals Trust:** Ultra-accurate ±0.02 pH readout for lab-grade confidence.

## Overview

The HM Digital PH-200 is a rugged, waterproof pH meter offering lab-level accuracy (±0.02 pH) across a full 0-14 pH range and temperature readings up to 80°C. Designed for professionals and serious hobbyists alike, it features auto-ranging calibration, a durable IP-67 rated housing, and smart power-saving functions, making it ideal for water quality testing in diverse environments from labs to hydroponics.

## Description

Product Description: HM Digital's PH-200 is a digital waterproof pH meter (aka pH tester or pH pen) that is ideal for all pH testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment, wine, coffee, agriculture and more. It is fast-acting, features amazing results and perfect for the hobbyist to the laboratory professional.

Review: جودة التصنيع ممتازه لكن وصلني وهو لا يعمل وقمت بارجاعه
Review: Disappointed - I trusted the brand and since it is one of the reliable pH meter in the market but unfortunately the supplier are not checking the quality of their merchandise before sending it to customer.

## Features

- Measures pH and Temperature, Range: 0-14 pH, 0-80 °C, 32-176 °F
- Autoranging three point calibration with digital fine tuning
- Waterproof housing (IP-67 rating)
- Includes storage solution in a sponge embedded in a clear cap
- Auto-off function, data-hold function and low-battery indicator

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00132G102 |
| ASIN  | B00132G102 |
| Batteries | 2 AAA batteries required. |
| Batteries  | 2 AAA batteries required. |
| Batteries Included? | No |
| Batteries Required? | No |
| Color | White |
| Customer Reviews | 4.2 4.2 out of 5 stars (355) |
| Customer reviews | 4.2 4.2 out of 5 stars (355) |
| Date First Available | 7 August 2012 |
| Date First Available  | 7 August 2012 |
| Included components | 1 EA Meter |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 177 g |
| Item model number | PH-200 |
| Item model number  | PH-200 |
| Manufacturer | HM Digital |
| Manufacturer  | HM Digital |
| Material | Plastic |
| Measurement Accuracy | +/- 0.1 |
| Number Of Pieces | 1 |
| Part number | PH-200 |
| Pattern | Meter |
| Plug Profile | Freestanding |
| Product Dimensions | 5.08 x 21.59 x 8.38 cm; 176.9 g |
| Product Dimensions  | 5.08 x 21.59 x 8.38 cm; 176.9 g |
| Shape | Rectangular |
| Size | 3.3" x 8.5" x 2" |
| tech_spec_battery_description_toys | Alkaline |

## Product Details

- **Battery description:** Alkaline
- **Brand:** HM Digital
- **Colour:** White
- **Item weight:** 0.39 Pounds
- **Product dimensions:** 21.6W x 8.4H centimeters

## Images

![PH-200 Waterproof pH Meter, 0-14.00 pH Range, 0.01 pH Resolution, +/- 0.02 pH Readout Accuracy - Image 1](https://m.media-amazon.com/images/I/51OdvTH9a2L.jpg)

## Questions & Answers

**Q: Which storage solution is best to use for this product? Also how often do you have to change storage fluid?**
A: There is hm ph electrode storage solution you can get...there is a sponge in the cap of this ph meter that you dont want to let dry out.

**Q: is this meter pre calibrated out of the box?**
A: Yes.....any bottled water that has been treated with the Reverse Osmosis (RO) has a PH of 7 .......Read the Label for (RO).....so it's an easy and cheap check.......

**Q: What is the operational temperature range ?**
A: I use it for adjusting brewing water, so the range I've use it is from 45F to 165F.

**Q: Is this meter appropriate fow wine?**
A: I've  been using it for beer pH measurement so wine should be fine.

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by Y***R on 15 August 2024*

جودة التصنيع ممتازه لكن وصلني وهو لا يعمل وقمت بارجاعه

### ⭐ Disappointed
*by B***E on 11 October 2022*

I trusted the brand and since it is one of the reliable pH meter in the market but unfortunately the supplier are not checking the quality of their merchandise before sending it to customer.

### ⭐⭐⭐⭐⭐ Review
*by B***8 on 5 September 2011*

FWIW, I'm writing the review from the POV of a spa user. You can use this tester for your pool, salt water aquarium or your hydroponic planter. My supposition is, you're looking at this item because you have needs above and beyond test kits or simple test strips. With this pH meter (potential of hydrogen), you'll be able to quickly tell what your water's pH is. HM also has a total dissolved solid (TDS) meter, the COM-100, which I've had for about a week and absolutely love. The unit is waterproof, light weight, a bit smaller than the size of a small "C" cell flashlight or about the size of a large cigar. It's easy to use, easy to maintain, has a small form factor for storage purposes and once calibrated, I feel it's an accurate piece of test equipment that gives you the feeling of having control over your spa tub water chemistry. The unit comes from the distributor pre-calibrated. Batteries are included. A cautionary warning note, the sensor periodically needs to be replaced. The replacement sensor number is: SP-P2. Replacement is a simple process of remove, replace and calibrate. Delivered, the sensor runs about $45.00. Knowing the pH of your water is an important aspect of monitoring spa water chemistry. Without a pH meter of this kind, one won't have a dependable clue what their pH level is. Using test strips or a test kit, my experience, readings can easily be off by up to 1.1 pH. Having your pH out of whack can cause you to have the condition of your water being too acidic, which can damage your heater element as well as low pH can be hard on eyes and skin. If the water is too base, you'll have to deal with calcification/scaling/cloudy water problems which is hard on the tub, jets and plain yucky to get in. The alternative to this meter, test strips or test kits is having to take the time and regularly drop in to your local pool/spa supply house with water sample in hand, where they're going want you to spend more money. And I hate spending money on chemicals I might not need. This all so I feel good about getting my water tested for free. With this tester, that's no longer an issue. And If you're a bit geeky, enjoy the feel of accurate test data and like the peace of mind created knowing you have control over your water's chemistry, after using this tester a few times, you'll feel confident that you're finally in control of your water's pH reading. Yes, in my opinion, the PH-200 is a bit expensive but if you have the extra green, for the peace of mind and control over your water chemistry this tester gives you, you'll quickly come to the same conclusion I came to; money well spent. Why? Because this tester is da bomb. Note 1. Be sure to buy some calibration solution so you know your reading is accurate due to proper calibration. Calibration is simple. Holding the middle button in for a few seconds puts the unit in calibration mode. Place the meter in the calibration fluid and then fine tune the reading displayed in the LCD using the up/down arrows. In this case, for spa water, I use 7.0 pH calibration fluid. You want to use a calibration fluid that's close to your expected needs: 4.00, 7.00 or 10.00 pH. In the case of this tester, calibration is no more difficult than using a television remote control. Note 2. Amazon has calibration packets for sale and with distilled water from the grocery store, you can mix up your own calibration fluid. FYI, you will need to have something like a 100ml graduated cylinder on hand to accurately measure the amount of distilled water you'll need when you mix up a batch of calibration fluid. Also needed, is some "electrode storage solution" to keep the sensor bulb wet. No big deal to use. Put a half dozen drops of fluid in the protective cap that covers the sensor, place the cap on the tester like a pen and you're good as long as the tester is stored standing upright to keep the fluid inside the cap. This is a very sensitive measuring device. This extra effort is not as big of a deal as I make it out to be. Once you do the first time, you're good. And if you care about decent testing gear, you won't mind this bit of extra effort and you'll be glad you got one of these pH testers. Hope the above helps.

## Frequently Bought Together

- HM Digital PH-200 Waterproof pH Meter, 0-14.00 pH Range, 0.01 pH Resolution, +/- 0.02 pH Readout Accuracy
- HM Digital PH-STOR pH Electrode Storage Solution for Use with PH-200 or PH-80, 60cc Volume
- Apera Instruments AI1113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. Each

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-01*