--- product_id: 50057485 title: "Extech PH100 Waterproof ExStik II pH Meter Kit, Flat Electrode | pH 0.00-14.00, waterproof, ATC, flat-surface electrode, temperature display, auto power off, sample cup" brand: "extech" price: "$444.45" currency: USD in_stock: true reviews_count: 11 category: "Extech" url: https://www.desertcart.ec/products/50057485-extech-ph100-waterproof-exstik-ii-ph-meter-kit-flat-electrode store_origin: EC region: Ecuador --- # Fast response time Waterproof design Auto temperature compensation Extech PH100 Waterproof ExStik II pH Meter Kit, Flat Electrode | pH 0.00-14.00, waterproof, ATC, flat-surface electrode, temperature display, auto power off, sample cup **Brand:** extech **Price:** $444.45 **Availability:** ✅ In Stock ## Summary > 💧 Stay ahead with precision—never miss a beat in water quality! ## Quick Answers - **What is this?** Extech PH100 Waterproof ExStik II pH Meter Kit, Flat Electrode | pH 0.00-14.00, waterproof, ATC, flat-surface electrode, temperature display, auto power off, sample cup by extech - **How much does it cost?** $444.45 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/50057485-extech-ph100-waterproof-exstik-ii-ph-meter-kit-flat-electrode) ## 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 - • **Waterproof & Durable:** Rugged, waterproof construction ensures reliable performance in any environment, indoor or outdoor. - • **Fast & Efficient Readings:** Quick response system minimizes wait time, keeping your workflow smooth and uninterrupted. - • **Complete Kit with Sample Cup:** Everything you need to test on the go—compact, portable, and ready for immediate use. - • **Precision pH Range 0.00-14.00:** Accurate readings across the full pH spectrum for professional-grade water quality analysis. - • **Auto Temperature Compensation (ATC):** Built-in temperature sensor adjusts readings automatically for flawless accuracy every time. ## Overview The Extech PH100 Waterproof ExStik II pH Meter Kit offers professional-grade pH measurement from 0.00 to 14.00 with a flat-surface electrode and automatic temperature compensation. Its waterproof design and fast response time make it ideal for both indoor and outdoor use. The kit includes a sample cup and features auto power-off for battery efficiency, ensuring reliable, on-the-go water quality testing for professionals who demand accuracy and durability. ## Description From the manufacturer Overview Teledyne FLIR designs, develops, manufactures, markets, and distributes technologies which enhance perception and awareness. We bring innovative sensing solutions into daily life through our thermal imaging, visible-light imaging, video analytics, measurement and diagnostic, and advanced threat detection systems. About Us Teledyne FLIR offers a diversified portfolio which serves a number of applications in government and defense, industrial, and commercial markets. Our products help first responders and military personnel protect and save lives, promote efficiency within the trades, and good technologies. Review: just the job we use a few of these and ... - just the job we use a few of these and always does what it is supposed to do ie tells us the PH of the water leaving the factory Review: It does its job but it doesn’t last - The pH meter does its job but it lasts only a couple of months. Being that the probe can’t be replaced, I think it’s expensive. I wish the readings were more stable as well cause it takes time to show a reading and even so it keeps changing. ## Features - Stem thermometer with adjustable stainless steel probe - 4.5-Inch (114mm) stainless steel probe adjusts from 0 to 180-Degrees for storage or measurement - Detents at 45-Degrees , 90-Degrees , 135-Degrees , and 180-Degrees - Fast response; auto Power off after 1 hour - Temperature:-58 to 572-Degrees F (-50 to 300-Degrees C) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00023RYQ8 | | Age Range Description | Adult | | Age range (description) | Adult | | Best Sellers Rank | 54,631 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 84 in Lab pH Meters | | Brand | Extech | | Colour | Green | | Country Of Origin | China | | Customer Reviews | 4.2 out of 5 stars 276 Reviews | | Display Type | Digital | | EU Spare Part Availability Duration | 1 Years | | Global Trade Identification Number | 00793950051009 | | Immersion Depth | 114 Millimetres | | Included Components | Protective sensor cap | | Included components | Protective sensor cap | | Indoor Outdoor Usage | Indoor | | Item Length | 114 Millimetres | | Item Weight | 3.8 Ounces | | Manufacturer | Extech | | Manufacturer Part Number | PH100 | | Model Name | PH100 | | Model Number | PH100 | | Number of Batteries | 4 Lithium Metal batteries required. (included) | | Outer Material | Stainless Steel | | Outer material | Stainless Steel | | Power Source | Battery Powered | | Reusability | Reusable | | Special Features | Waterproof, Automatic Temperature Compensation, Fast Reading System, Dual Probe | | Special feature | Waterproof, Automatic Temperature Compensation, Fast Reading System, Dual Probe | | Style Name | pH | | UPC | 723434132528 793950051009 | | Unit Count | 1 Medidor | | Upper Temperature Rating | 90 Degrees Celsius | ## Product Details - **Battery description:** Alkaline - **Brand:** Extech - **Colour:** Green - **Item weight:** 0.12 Kilograms - **Product dimensions:** 41W x 36H millimetres ## Images ![Extech PH100 Waterproof ExStik II pH Meter Kit, Flat Electrode | pH 0.00-14.00, waterproof, ATC, flat-surface electrode, temperature display, auto power off, sample cup - Image 1](https://m.media-amazon.com/images/I/61dMzzktUcL.jpg) ## Questions & Answers **Q: How would it test pH in a person? How can we do it once purchased?** A: I am not sure if you can use this to test the pH if a person. Perhaps by putting it in sweaty skin. You should call manufacturer to see if they can answer your question. **Q: can i use this meter for cheesemaking?** A: Don't see why notCheesemaking websites list similar ones, maybe less precise than this but same technology **Q: Can I use for stiff dough?** A: Yes you can. This can read liquids and solids. I use mine to measure the ph of cheese curds and whey. **Q: I have a very similar meter but it is "ph110" instead of "ph100." will this "ph105" sensor work with the "ph110?"** A: Yes the PH105 is the replacement pH electrode for both the PH100 and PH110. ## Customer Reviews ### ⭐⭐⭐⭐⭐ just the job we use a few of these and ... *by C***S on 11 December 2015* just the job we use a few of these and always does what it is supposed to do ie tells us the PH of the water leaving the factory ### ⭐⭐⭐ It does its job but it doesn’t last *by M***M on 25 March 2024* The pH meter does its job but it lasts only a couple of months. Being that the probe can’t be replaced, I think it’s expensive. I wish the readings were more stable as well cause it takes time to show a reading and even so it keeps changing. ### ⭐⭐ Over-priced, flimsy and hard to maintain *by A***R on 8 June 2025* Doesn't last and impossible to find replacement filler solution. The cost of a new electrode (if you can find one) is more than the cost of a a new pH meter. It's over-priced and has poor support after sale. ## Frequently Bought Together - Extech Instruments PH100 Waterproof pH Metre - ph buffer 7 300ml & ph buffer 4 300ml growth technology free 100ml formulex --- ## 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.ec/products/50057485-extech-ph100-waterproof-exstik-ii-ph-meter-kit-flat-electrode](https://www.desertcart.ec/products/50057485-extech-ph100-waterproof-exstik-ii-ph-meter-kit-flat-electrode) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-07-29*