--- product_id: 294918622 title: "Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter" brand: "extech" price: "S/.1377" currency: PEN in_stock: true reviews_count: 5 category: "Extech" url: https://www.desertcart.pe/products/294918622-extech-ec400-exstik-waterproof-conductivity-tds-salinity-and-temperature-meter store_origin: PE region: Peru --- # Measures conductivity, TDS, salinity & temp simultaneously Stores up to 15 labeled readings for quick recall Adjustable conductivity to TDS ratio from 0.4 to 1.0 Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter **Brand:** extech **Price:** S/.1377 **Availability:** ✅ In Stock ## Summary > 💼 Elevate your water quality testing game with precision and ease—because your data deserves the best. ## Quick Answers - **What is this?** Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter by extech - **How much does it cost?** S/.1377 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/294918622-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 - • **User-Friendly Tech:** Self-calibrates on power-up and features intuitive indicators for wiring faults and circuit status—effortless accuracy. - • **Smart Memory Recall:** Never lose track—store and label up to 15 readings for seamless data management on the go. - • **Durable & Waterproof:** Built tough for fieldwork with a waterproof design and protective cap, ready for any environment. - • **Customizable Calibration:** Fine-tune your measurements with an adjustable conductivity to TDS ratio, tailored to your exact needs. - • **Multi-Parameter Precision:** Get instant, reliable readings of conductivity, TDS, salinity, and temperature—all in one sleek device. ## Overview The Extech EC400 ExStik is a professional-grade, waterproof meter that simultaneously measures conductivity, TDS, salinity, and temperature. Featuring advanced microprocessor and patented sensor technology, it stores up to 15 labeled readings, offers adjustable conductivity to TDS ratio settings, and self-calibrates for reliable, repeatable results. Compact and durable, it’s designed for professionals who demand accuracy and efficiency in the field. ## 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. Review: Good quality running for many years without issue - I use this for years now without any issue. I am very satisfied with, the use is limited of course but I have it many years now Review: Ottimo prodotto - Comprato usato a metà prezzo Arrivato nei tempi ben imballato il prodotto funziona perfettamente e risponde alle caratteristiche dichiarate la misurazione è abbastanza precisa ed è dotato di un manualetto abbastanza chiaro ## 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 | Extech | | Brand Name | Extech | | Customer Reviews | 4.5 out of 5 stars 79 Reviews | | 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 | | Item dimensions L x W x H | 17.3 x 4.1 x 3.6 centimeters | | Item weight | 0.12 Kilograms | | Manufacturer | Extech | | Material | Plastic | | Material Type | Plastic | | Model | EC400 | | Number of Items | 1 | | Part Number | EC400 | | UPC | 767654910399 793950054000 | | Unit Count | 1 Count | | Unit count | 1 Count | ## Product Details - **Brand:** Extech - **Item Weight:** 0.12 Kilograms - **Item dimensions L x W x H:** 6.8 x 1.6 x 1.4 inches - **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) ## 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good quality running for many years without issue *by K***S on 22 September 2025* I use this for years now without any issue. I am very satisfied with, the use is limited of course but I have it many years now ### ⭐⭐⭐⭐⭐ Ottimo prodotto *by A***A on 19 March 2018* Comprato usato a metà prezzo Arrivato nei tempi ben imballato il prodotto funziona perfettamente e risponde alle caratteristiche dichiarate la misurazione è abbastanza precisa ed è dotato di un manualetto abbastanza chiaro ### ⭐⭐⭐⭐⭐ Super *by S***E on 22 March 2025* Was soll ich sagen, ich habe 4 diverse Salzmessgeräte ausprobiert, das hier, ist das Beste und Genaueste in diesem Preissegment. Einfach in der Anwendung. Schön wäre, wenn die Kalibrierlösung mit dabei wäre. Top Produkt. ## Frequently Bought Together - Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter - Rite In The Rain Weatherproof Side Spiral Notebook, Yellow Cover, Universal Page Pattern (No. 373-MX), 11 x 8.75 x 0.5 --- ## 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.pe/products/294918622-extech-ec400-exstik-waterproof-conductivity-tds-salinity-and-temperature-meter](https://www.desertcart.pe/products/294918622-extech-ec400-exstik-waterproof-conductivity-tds-salinity-and-temperature-meter) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-07-09*