---
product_id: 177148819
title: "COM100 Waterproof EC/TDS And Temperature Combo Meter"
brand: "hm digital"
price: "€ 111.85"
currency: EUR
in_stock: true
reviews_count: 6
url: https://www.desertcart.at/products/177148819-com100-waterproof-ec-tds-and-temperature-combo-meter
store_origin: AT
region: Austria
---

# Waterproof design Rechargeable & auto-off 0.5 sec rapid response COM100 Waterproof EC/TDS And Temperature Combo Meter

**Brand:** hm digital
**Price:** € 111.85
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead with the ultimate waterproof water quality pro!

## Quick Answers

- **What is this?** COM100 Waterproof EC/TDS And Temperature Combo Meter by hm digital
- **How much does it cost?** € 111.85 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/177148819-com100-waterproof-ec-tds-and-temperature-combo-meter)

## 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

- • **Eco-Smart Power:** Rechargeable battery with auto-off feature maximizes efficiency and lifespan
- • **Trusted Accuracy:** Top-rated TDS and EC meter from HM Digital, a leader in water testing tech
- • **Compact & Lightweight:** Sleek 18cm design weighing just 120g for effortless portability
- • **Precision in Every Drop:** Instant 0.5-second readings for real-time water quality insights
- • **Built to Brave the Elements:** Fully waterproof casing ensures durability indoors and outdoors

## Overview

The HM Digital COM100 is a professional-grade waterproof EC/TDS and temperature combo meter designed for precise, rapid water quality testing. Featuring a 0.5-second response time, rechargeable battery with auto-off, and a compact, durable design, it’s perfect for both indoor and outdoor use. Trusted by experts, this Korean-engineered device delivers reliable readings to keep your water testing accurate and effortless.

## Features

- TDS Meter
- hydrotester
- ec meter
- com100
- water testing tds meter
- water tds meter
- Waterproof tds meter
- water testing meter
- water tester
- water testing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Age Range Description | Adult |
| Asin | B0045LQFTK |
| Best Sellers Rank | #61,789 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #126 in Conductivity Meters & Accessories |
| Brand Name | HM Digital |
| Colour | white |
| Country Of Origin | Korea, Republic of |
| Customer Reviews | 4.2 4.2 out of 5 stars (175) 4.2 out of 5 stars |
| Display Type | Digital |
| Global Trade Identification Number | 00891144000007 |
| Importer Contact Information | hm digital |
| Included Components | Model |
| Indoor Outdoor Usage | Indoor, Outdoor |
| Item Length | 18 Centimetres |
| Item Type Name | tds meter |
| Item Weight | 120 Grams |
| Manufacturer | HM Digital, hm digital |
| Manufacturer Contact Information | hm digital |
| Model Name | COM100 |
| Model Number | COM-100 |
| Number Of Batteries | 1 A batteries required. |
| Outer Material Type | Plastic |
| Packer Contact Information | hm digital |
| Part Number | COM-100 |
| Power Source Type | बटरी सचालित |
| Product Care Instructions | Hand Wash Only |
| Response Time | 0.5 Seconds |
| Reusability | Rechargeable |
| Special Features | Auto Off |
| Specification Met | TDS |
| Unit Count | 1 Count |
| Upc | 095225177507 891144000007 |

## Product Details

- **Brand:** HM Digital
- **Special Feature:** Auto Off
- **Colour:** white
- **Age Range (Description):** Adult
- **Included Components:** Model

## Images

![COM100 Waterproof EC/TDS And Temperature Combo Meter - Image 1](https://m.media-amazon.com/images/I/51hfD5nFZmL.jpg)

## Questions & Answers

**Q: Can this unit be used to test PH?**
A: FROM HM DIGITAL: The COM-100 is NOT a pH meter. It measures EC (electrical conductivity), TDS (total dissolved solids) and temperature. For pH, please purchase HM Digital's PH-200. For more information, please visit www.tdsmeter.com

**Q: My meter want read over 999 or am I looking at the wrong ppm?**
A: Select 442 scale. Your meter will read more than 999 ppm.

**Q: Any trouble measuring in mS?**
A: FROM HM-DIGITAL: The COM-100 is a professional waterproof EC/TDS meter that has three EC-TDS conversion factors and selectable modes allowing you to measure in the µs, mS, ppm and ppt scales. For more information, please visit, www.tdsmeter.com/products/com100.html

**Q: Isn't one supposed to use calibrating and cleaning solution with this?**
A: I clean mine with a wet Q-tip. There is a TDS calibration solution I use when I recalibrate every month.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice Product
*by  on Reviewed in India 26 August 2016*

Nice Product

### ⭐⭐⭐⭐⭐ Worth the upgrade over cheaper models
*by  on Reviewed in Canada 21 June 2025*

Great meter. Near instant readings, accurate, easy to calibrate and best of all, waterproof.I’ve accidentally dropped the whole meter into water, completely submerged for a few seconds with no problems.

### ⭐⭐⭐⭐ ممتاز
*by  on Reviewed in Saudi Arabia 15 March 2024*

تجربتي معه جيدة

## Frequently Bought Together

- HM Digital HMDCOM100 Waterproof EC/TDS And Amp Temperature Combo Meter
- HM Digital C342 TDS and EC Calibration Solution, 342 ppm (NaCl), 90 ml Volume, Transparent/Blue
- HM Digital 1000ppm TDS Calibration Solution

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-08-30*