--- product_id: 292731108 title: "Extech DO600 Waterproof ExStik II Dissolved Oxygen Meter" brand: "extech" price: "£354.22" currency: GBP in_stock: true reviews_count: 5 category: "Extech" url: https://www.desertcart.co.uk/products/292731108-extech-do600-waterproof-exstik-ii-dissolved-oxygen-meter store_origin: GB region: United Kingdom --- # Compact 1.4"x6.9"x1.6" Lightweight 3.8 oz 0-50°C Temp Range Extech DO600 Waterproof ExStik II Dissolved Oxygen Meter **Brand:** extech **Price:** £354.22 **Availability:** ✅ In Stock ## Summary > 💧 Stay ahead in water quality monitoring with precision and portability! ## Quick Answers - **What is this?** Extech DO600 Waterproof ExStik II Dissolved Oxygen Meter by extech - **How much does it cost?** £354.22 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/292731108-extech-do600-waterproof-exstik-ii-dissolved-oxygen-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 - • **Rugged & Portable Design:** Waterproof, stainless steel build with lightweight form factor for on-the-go pros - • **Complete Ready-to-Use Kit:** Includes sensor cap, spare membrane, electrolyte, batteries & neck strap—start testing immediately - • **Precision Oxygen Readings:** Displays O2 as % saturation or mg/L for exact water quality insights - • **Trend Tracking Analog Bargraph:** Visualize oxygen level changes instantly with intuitive bargraph - • **Altitude & Salinity Smart Adjust:** Customizable compensation up to 20,000 ft and 50 ppt salinity for field accuracy ## Overview The Extech DO600 Waterproof ExStik II is a professional-grade dissolved oxygen meter offering precise oxygen level measurements with adjustable altitude and salinity compensation. Its compact, lightweight, and waterproof design, combined with an easy-to-read analog bargraph and comprehensive kit, makes it an essential tool for environmental pros and water quality managers seeking reliable, on-site data. ## Description The ExStik® II DO600 meter displays Oxygen level as percent of Saturation from 0 to 200. 0 percent or Concentration from 0 to 20.00 ppm (mg/L). It features Adjustable Altitude Compensation (0 to 20,000 feet in 1,000 ft. increments), Adjustable Salinity Compensation from 0 to 50 ppt and an analog bargraph for indicating trends. DO600 meter includes a DO electrode, protective sensor cap, spare membrane cap, electrolyte, four 3V CR-2032 batteries, and 48" (1.2m) neck strap. Review: Buena compra - Muy buena compra, repetiría sin dudar. Review: Five Stars - Easy to use. Read up on optical disolved oxygen sensors if u have never used one before ## Features - 0 to 50°C Temperature Range - 1.4" D x 6.9" H x 1.6" W - 3.8 oz Weight - DO sensor with easy to replace screw-on membrane cap with optional extension cables - Oxygen level displayed as percent saturation or concentration (mg/L (ppm)) - Adjustable altitude compensation (0-20,000-Feet in 1,000-Feet increments) - Adjustable salinity compensation from 0 to 50ppt - Analog bargraph indicates trends ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000R8253K | | Best Sellers Rank | #157,205 in Health ( See Top 100 in Health ) #23 in Oximeters | | Brand | Extech | | Brand Name | Extech | | Customer Reviews | 3.6 out of 5 stars 26 Reviews | | Global Trade Identification Number | 00793950056004 | | Included Components | Waterproof ExStik | | Item Dimensions | 17.5 x 4.1 x 3.6 centimeters | | Item Type Name | - Portable DO Tester with Salinity and Temperature Compensation, Auto Calibration, Data Hold, Min/Max, Large LCD | | Item Weight | 0.11 Kilograms | | Item dimensions L x W x H | 17.5 x 4.1 x 3.6 centimeters | | Item weight | 0.11 Kilograms | | Manufacturer | Extech | | Material | Stainless Steel | | Material Type | Stainless Steel | | Model | DO600 | | Number of Items | 1 | | Part Number | DO600 | | Thread Style | M10x1 | | Thread type | M10x1 | | UPC | 793950056004 | | Unit Count | 1 Count | | Voltage | 3 Volts | ## Product Details - **Brand:** Extech - **Style:** DO600 - **Power source:** Battery Powered - **Colour:** White - **Item weight:** 0.11 Kilograms ## Images ![Extech DO600 Waterproof ExStik II Dissolved Oxygen Meter - Image 1](https://m.media-amazon.com/images/I/51MVh1QuTvL.jpg) ## Questions & Answers **Q: Is it for testing the% of oxygen in water, right? Can I use it for fish farming unit?** A: Hi, I use it to check Dissolved Oxygen in the water for fish as well as for brewing compost teas. **Q: Does this unit log more than one reading at a time? (Or do you need to write down each reading as you go?)** A: Unit does not log readings...you must write down and then continue on. **Q: how wide is the tip that goes in the water?** A: The tip is about 1/2 inch. **Q: Can I use this device to measure dissolved oxygen in a water solution with 1% sacarose?** A: Sorry, I use my meter in rivers and ponds. No idea otherwise. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Buena compra *by N***E on 12 October 2025* Muy buena compra, repetiría sin dudar. ### ⭐⭐⭐⭐⭐ Five Stars *by N***Y on 6 June 2015* Easy to use. Read up on optical disolved oxygen sensors if u have never used one before ### ⭐ They are a very poor product- they simply do not work accurately and there is zero customer support *by R***. on 26 June 2024* Avoid buying these or using this manufacturer. I was hoping to use the device in field and lab settings to determine the dissolved oxygen content of water samples. I also have a Jenway and an older device which still work, but for teaching purposes we needed several and Extech looked like a great alternative so I purchased three. While, the existing Jenway devices and one of my Extech DO600 Waterproof ExStik II provide measurements that agree with one another, two of the Extech DO600 Waterproof ExStik II devices provide readings that are completely impossible. The devices were calibrated in exactly the same way as each other. I raised the issue with the sales team at Extech because they do not provide any customer service contact details but I could find a sales email address online (unsurprisingly). Nobody has answered my query, so presumably they are happy to sell the devices, which do not work, and they prefer not to hear from customers and do not intend to deal with faulty items. It's very disappointing as we have a limited budget and this has cut into it as we'll need to source alternative devices without receiving any refund, or even any suggestions as to the source of the fault/troubleshooting. ## Frequently Bought Together - Extech DO600 Waterproof ExStik II Dissolved Oxygen Meter - Extech PH110 Waterproof ExStik pH Meter - EXTECH Instruments RE300 ExStik ORP Meter --- ## 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/292731108-extech-do600-waterproof-exstik-ii-dissolved-oxygen-meter](https://www.desertcart.co.uk/products/292731108-extech-do600-waterproof-exstik-ii-dissolved-oxygen-meter) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-07-03*