--- product_id: 110992391 title: "Apera Instruments LabSen 211 Glass-Body pH Electrode for General Water Solutions, Impact-Resistant Sensor, TRIS Buffer Compatible, BNC Connector" brand: "apera instruments" price: "£149.10" currency: GBP in_stock: true category: "Apera Instruments" url: https://www.desertcart.co.uk/products/110992391-apera-instruments-labsen-211-glass-body-ph-electrode-for-general store_origin: GB region: United Kingdom --- # 10x stronger impact-resistant glass Swiss proprietary sensor tech Stabilized readings in 15-30 sec Apera Instruments LabSen 211 Glass-Body pH Electrode for General Water Solutions, Impact-Resistant Sensor, TRIS Buffer Compatible, BNC Connector **Brand:** apera instruments **Price:** £149.10 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your water testing game with LabSen 211 — precision that lasts and performance you can trust! ## Quick Answers - **What is this?** Apera Instruments LabSen 211 Glass-Body pH Electrode for General Water Solutions, Impact-Resistant Sensor, TRIS Buffer Compatible, BNC Connector by apera instruments - **How much does it cost?** £149.10 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/110992391-apera-instruments-labsen-211-glass-body-ph-electrode-for-general) ## Best For - apera instruments enthusiasts ## Why This Product - Trusted apera instruments brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Compatibility:** Standard BNC connector ensures effortless integration with your existing pH meters—no adapters needed. - • **Swiss Innovation Inside:** Premium Swiss materials and proprietary blue gel electrolyte eliminate air bubbles for consistent, reliable measurements every time. - • **Engineered for Longevity:** Long-life reference system with temperature-stable AgCl and cotton barrier extends electrode lifespan, reducing costly replacements. - • **Precision Meets Durability:** LabSen’s hemispherical glass membrane delivers ultra-fast, stable pH readings with 10x the impact resistance of standard electrodes. - • **Optimized for Water Solutions:** Specifically designed for general water testing and fully compatible with TRIS buffer solutions, making it the go-to choice for professionals. ## Overview The Apera Instruments LabSen 211 is a premium glass-body pH electrode featuring proprietary Swiss sensor technology and a robust hemispherical glass membrane that delivers fast, stable readings within 15-30 seconds. Its impact-resistant design is 10 times stronger than traditional electrodes, while the long-life reference system enhances stability and durability. Compatible with TRIS buffer solutions and equipped with a standard BNC connector, it’s engineered for professional lab and field water solution testing. ## Description Built with proprietary sensor technology and materials from Switzerland, Apera LabSen 211 pH Electrode is ideal for professional lab and field pH measurement of general water solutions. LabSen S-type hemispherical glass membrane - low resistance and high firmness, rendering fully stabilized readings in 15 to 30 seconds, and is yet 10 times stronger than traditional glass membranes, highly resistant to general impact, eliminating the chance of accidental breakage. Long-Life Reference System - composed of a glass tube, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It improves the stability of reference electrode and extends the service life of the electrode. The electrode uses a standard BNC connector, compatible with any pH meters that use BNC connectors. No temperature sensor is built-in. Users need to have a separate temperature probe (ex: Apera MP500) to enable ATC or manually input temperature to achieve temperature compensation. ## Features - Proprietary pH sensor technology and premium materials from Switzerland - Unique LabSen blue hemispherical glass membrane, faster response rate, better repeatability, and impact-resistant - Long-life reference system, improving the stability of reference electrode and prolong the service life of the electrode - Compatible with Tris buffer solutions - No more air bubbles inside the glass membrane thanks to the Swiss blue gel electrolyte. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0769XQNF5 | | Best Sellers Rank | #284,215 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #82 in Lab Electrochemistry Accessories | | Date First Available | October 9, 2017 | | Item Weight | 9 ounces | | Item model number | AI3101 | | Manufacturer | Apera Instruments | | Product Dimensions | 6.3 x 0.11 x 0.11 inches | ## Images ![Apera Instruments LabSen 211 Glass-Body pH Electrode for General Water Solutions, Impact-Resistant Sensor, TRIS Buffer Compatible, BNC Connector - Image 1](https://m.media-amazon.com/images/I/21qf2nfWR6L.jpg) ![Apera Instruments LabSen 211 Glass-Body pH Electrode for General Water Solutions, Impact-Resistant Sensor, TRIS Buffer Compatible, BNC Connector - Image 2](https://m.media-amazon.com/images/I/21TgqGnq34L.jpg) ![Apera Instruments LabSen 211 Glass-Body pH Electrode for General Water Solutions, Impact-Resistant Sensor, TRIS Buffer Compatible, BNC Connector - Image 3](https://m.media-amazon.com/images/I/31QZKXtXtmL.jpg) ![Apera Instruments LabSen 211 Glass-Body pH Electrode for General Water Solutions, Impact-Resistant Sensor, TRIS Buffer Compatible, BNC Connector - Image 4](https://m.media-amazon.com/images/I/31LAWfYyBmL.jpg) ![Apera Instruments LabSen 211 Glass-Body pH Electrode for General Water Solutions, Impact-Resistant Sensor, TRIS Buffer Compatible, BNC Connector - Image 5](https://m.media-amazon.com/images/I/51Jwus07GML.jpg) --- ## 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/110992391-apera-instruments-labsen-211-glass-body-ph-electrode-for-general](https://www.desertcart.co.uk/products/110992391-apera-instruments-labsen-211-glass-body-ph-electrode-for-general) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-09-17*