--- product_id: 403866359 title: "Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter" brand: "extech" price: "£179.30" currency: GBP in_stock: true category: "Extech" url: https://www.desertcart.co.uk/products/403866359-extech-ec400-exstik-waterproof-conductivity-tds-salinity-and-temperature-meter store_origin: GB region: United Kingdom --- # Compact 100g portable design 3 conductivity & TDS ranges Adjustable temp compensation 0-5%/°C Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter **Brand:** extech **Price:** £179.30 **Availability:** ✅ In Stock ## Summary > 🌊 Measure smarter, test faster, lead cleaner. ## Quick Answers - **What is this?** Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter by extech - **How much does it cost?** £179.30 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/403866359-extech-ec400-exstik-waterproof-conductivity-tds-salinity-and-temperature-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 - • **Designed for Mobility:** Lightweight and compact, perfect for professionals who demand precision anywhere. - • **Stay Accurate, Always:** Customizable temperature compensation ensures consistent readings regardless of conditions. - • **Tailored to Your Needs:** Three versatile measurement ranges adapt seamlessly to diverse testing environments. - • **Effortless Data Capture:** Min/Max and Data Hold functions simplify analysis and reporting on the go. - • **Precision in Every Drop:** Accurately measures conductivity, TDS, and temperature for reliable water quality insights. ## Overview The Extech EC210 is a compact, handheld meter designed for precise measurement of conductivity, total dissolved solids (TDS), and temperature in water samples. Featuring three selectable measurement ranges and adjustable temperature compensation, it ensures accuracy across diverse conditions. Its user-friendly interface includes Min/Max and Data Hold functions, all packed into a lightweight 100g design ideal for field professionals. ## Description The Extech EC400 ExStik® features six units of measure, internal memory that stores up to 15 labeled readings for easy recall, adjustable conductivity to TDS ratio factor from 0.4 to 1.0, and self-calibration upon power up. The EC400 incorporates the latest microprocessor chip technology and patented sensor technology to enable the simultaneous measurement of conductivity, TDS, salinity, and temperature. With the touch of a button the EC400 allows you the flexibility of interchangeable cell constants and has made the job of testing fast, accurate, and repeatable. Complete with meter and Conductivity cell, protective cap, sample cup, four CR2032 batteries, and 48"(1.2m) neckstrap. ## Features - Detects 5 wiring faults - Lights indicate circuit condition - 3-prong plug - Stores/recalls up to 15 labeled readings - Adjustable conductivity to TDS ratio factor from 0.4 to 1.0 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00023RXFK | | Brand Name | Extech | | Customer Reviews | 4.5 4.5 out of 5 stars (79) | | Global Trade Identification Number | 00793950054000 | | Included Components | EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter | | Item Dimensions | 17.3 x 4.1 x 3.6 centimeters | | Item Weight | 0.12 Kilograms | | Manufacturer | Extech | | Material Type | Plastic | | Model | EC400 | | Part Number | EC400 | | UPC | 767654910399 793950054000 | | Unit Count | 1 Count | ## Product Details - **Brand:** Extech - **Item dimensions L x W x H:** 17.3 x 4.1 x 3.6 centimeters - **Item weight:** 0.12 Kilograms - **Material:** Plastic - **Number of Items:** 1 ## Images ![Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter - Image 1](https://m.media-amazon.com/images/I/513Lh12mweL.jpg) ![Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter - Image 2](https://m.media-amazon.com/images/I/61cSBMRK3hL.jpg) ![Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter - Image 3](https://m.media-amazon.com/images/I/61I+gKblsNL.jpg) ![Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter - Image 4](https://m.media-amazon.com/images/I/61barY4auSL.jpg) ## Available Options This product comes in different **Style** options. ## 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 EC210 Compact Conductivity and TDS Meter - Conductivity Standard 2-Pack — 250 mL (8.4 fl oz) Each: 100 μS and 1413 μS — NIST Traceable — for 2-Point Calibration --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/403866359-extech-ec400-exstik-waterproof-conductivity-tds-salinity-and-temperature-meter](https://www.desertcart.co.uk/products/403866359-extech-ec400-exstik-waterproof-conductivity-tds-salinity-and-temperature-meter) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-07*