---
product_id: 52603384
title: "EC500 Waterproof ExStik II pH/Conductivity Meter"
brand: "extech"
price: "$466.95"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/52603384-ec500-waterproof-exstik-ii-ph-conductivity-meter
store_origin: US
region: United States of America
---

# Waterproof 25 Memory Readings 5-in-1 Measurement EC500 Waterproof ExStik II pH/Conductivity Meter

**Brand:** extech
**Price:** $466.95
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive into Precision with the Extech EC500!

## Quick Answers

- **What is this?** EC500 Waterproof ExStik II pH/Conductivity Meter by extech
- **How much does it cost?** $466.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/52603384-ec500-waterproof-exstik-ii-ph-conductivity-meter)

## Best For

- extech enthusiasts

## Why This Product

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

## Key Features

- • **Measure with Precision:** Experience the power of five parameters in one sleek device.
- • **Trendy Trend Indicator:** Stay ahead with an analogue bar graph that shows real-time trends.
- • **Memory for the Modern User:** Store up to 25 labelled readings for easy reference and analysis.
- • **Versatile Units of Measure:** Switch effortlessly between pH, conductivity, TDS, and more.
- • **Adjustable Ratios for Customization:** Fine-tune your measurements with adjustable conductivity to TDS ratios.

## Overview

The Extech EC500 Waterproof ExStik II pH/Conductivity Meter is a versatile and compact device designed to measure five critical parameters: conductivity, TDS, salinity, pH, and temperature. With nine units of measure and the ability to store up to 25 labelled readings, this meter is perfect for professionals seeking accuracy and convenience in their measurements. Its waterproof design ensures durability, making it an essential tool for any fieldwork.

## Description

EC500 Waterproof ExStik II pH/Conductivity Meter

## Features

- Measures five parameter including conductivity, TDS, salinity, pH and temperature using one electrode
- Nine units of measure: pH, S/cm, MS/cm, ppm, ppt, mg/L, g/L, C, F
- Analogue bar graph indicates trends
- Memory stores up to 25 labelled readings
- Adjustable conductivity to TDS ratio from 0.4 to 1.0, 0.5 fixed salinity ratio

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Extech |
| Part Number | EC500 |
| Product Dimensions | 2.8 x 4.83 x 11.43 cm; 110 g |
| Batteries | 4 Lithium Metal batteries required. (included) |
| Item model number | EC500 |
| Material | PE_(Polyethylene) |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Batteries included? | Yes |
| Batteries Required? | No |
| Battery Cell Type | Lithium Metal |
| Item Weight | 110 g |

## Product Details

- **Brand:** Extech
- **Material:** PE_(Polyethylene)
- **Item dimensions L x W x H:** 28 x 48 x 114 millimetres
- **Item weight:** 0.11 Kilograms
- **UPC:** 793950055007

## Images

![EC500 Waterproof ExStik II pH/Conductivity Meter - Image 1](https://m.media-amazon.com/images/I/51WqlZVlK3L.jpg)

## Questions & Answers

**Q: Just to be sure, this will detect salinity fluctuations of coastal marine water (35 ppt)?!**
A: The max salinity for this meter is 9.99g/L  (parts per thousand).  So if you know the water is in the range of 35ppt, you can't make direct measurements.  But, you could dilute the sample (say 10x) in the field using bottled water (has a salinity <<< sample) or DI water and that would put you at 3.5g/L roughly.  You should be able to detect fluctuations at 0.1ppt on the diluted water which translates into detecting 1ppt fluctuations in the water.

**Q: is the Exstick EC500 come with calibration certificate ?**
A: No, it does not, but we can get you a Certificate of Conformance from Extech, when you purchase this product from our Amazon Store.

**Q: how does it give two readings**
A: Salinity in ppm   Conductivity.  And total dissolved solids. I really like this meter. Used it for jar tests this summer

**Q: Can this be used in soil?**
A: Hi This product can not be used in soil.

## Frequently Bought Together

- Extech EC500 Waterproof ExStik II pH/Conductivity Meter
- pH Buffer Calibration Solution Kit 3-Pack: pH 4.00, pH 7.00, pH 10.00 Buffers — 250 ml (8.4 fl oz) Each — Color Coded — NIST Traceable for All pH Meters
- Oakton AO-00653-18 Oakton Conductivity and TDS Standard, 1413 Μs; 500 mL

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-23*