--- product_id: 132233558 title: "APERA INSTRUMENTS 201DJ-C Double-Junction pH Electrode, BNC Connector, 3 Ft Cable, PC Body" price: "£36.50" currency: GBP in_stock: true reviews_count: 13 url: https://www.desertcart.co.uk/products/132233558-apera-instruments-201dj-c-double-junction-ph-electrode-bnc-connector store_origin: GB region: United Kingdom --- # BNC connector for universal compatibility 3 ft durable cable length Double-junction clog-resistant design APERA INSTRUMENTS 201DJ-C Double-Junction pH Electrode, BNC Connector, 3 Ft Cable, PC Body **Price:** £36.50 **Availability:** ✅ In Stock ## Summary > 🔬 Stay ahead in precision—measure with confidence, every time. ## Quick Answers - **What is this?** APERA INSTRUMENTS 201DJ-C Double-Junction pH Electrode, BNC Connector, 3 Ft Cable, PC Body - **How much does it cost?** £36.50 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/132233558-apera-instruments-201dj-c-double-junction-ph-electrode-bnc-connector) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal BNC Connector:** Seamlessly integrates with any pH meter using BNC, no adapters needed—plug and play precision. - • **Robust Polycarbonate Body:** Durable housing built to withstand harsh environments like wastewater and corrosive solutions. - • **Clog-Resistant Double-Junction:** Engineered to prevent contamination in turbid liquids, ensuring reliable readings every time. - • **Gel KCL Electrolyte, No Refills:** Maintenance-free gel electrolyte means zero downtime and consistent performance for months. - • **Optimized for Turbid & Harsh Liquids:** Perfect for pools, spas, and environmental monitoring where standard probes fail. ## Overview The APERA INSTRUMENTS 201DJ-C is a professional-grade double-junction pH electrode designed for stable, clog-resistant measurements in turbid and challenging liquid environments. Featuring a universal BNC connector and a maintenance-free gel KCL electrolyte, it delivers reliable, long-lasting performance ideal for industrial, environmental, and pool monitoring applications. ## Description APERA INSTRUMENTS 201DJ-C Double-Junction Combination pH Electrode is ideal for long time consistent testing in turbid water solutions, such as wastewater, pools and spas, and environmental monitoring. Its double-junction structure prevents the probe from being clogged and contaminated during measurement. Measurement Range: 014 pH, 080?C (32176?F); Housing: Polycarbonate; Junction: Double Ceramic; Reference Electrode: Ag/AgCl; Connector: BNC; Size: ø12 160 mm; Cable: 3 Ft. Not suitable for testing in low-ion concentration solutions (eg: deionized water or distilled water), strong base solutions (pH>12), highly corrosive liquid, or for continuous testing in high temperature solutions (>140?F). Compatible with any pH meters that use BNC connectors. Temperature sensor is not built-in. Users need to have a separate temperature probe to enable ATC or manually input temperature to complete temperature compensation Review: Buena Calidad - Ideal para medir Salsas espesas. Review: The best ones I tried as of yet - I use these pH electrodes in a machine that produces chorine solution from splitting salt water with electricity. So the environment is definitely corrosive even for plastics (over time). Electrode has been performing way more stably then a different brand that I used to buy here on desertcart. So I really vouch for these right now, at least for my application. I don't even expect these to last more then a few months since they are constantly dipped in the concentrate, and this one is performing great. ## Features - Double-junction structure, hard to be clogged - Suitable for testing in turbid liquid - Standard bnc connector - Gel KCL electrolyte, no need for refilling - 6 Months fulfilled by Apera Instruments ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.1 out of 5 stars 82 Reviews | ## Images ![APERA INSTRUMENTS 201DJ-C Double-Junction pH Electrode, BNC Connector, 3 Ft Cable, PC Body - Image 1](https://m.media-amazon.com/images/I/51ZSQnqmTaL.jpg) ![APERA INSTRUMENTS 201DJ-C Double-Junction pH Electrode, BNC Connector, 3 Ft Cable, PC Body - Image 2](https://m.media-amazon.com/images/I/61iQNbyvLFL.jpg) ![APERA INSTRUMENTS 201DJ-C Double-Junction pH Electrode, BNC Connector, 3 Ft Cable, PC Body - Image 3](https://m.media-amazon.com/images/I/61JDGvdtTYL.jpg) ![APERA INSTRUMENTS 201DJ-C Double-Junction pH Electrode, BNC Connector, 3 Ft Cable, PC Body - Image 4](https://m.media-amazon.com/images/I/51BKoZ03w4L.jpg) ![APERA INSTRUMENTS 201DJ-C Double-Junction pH Electrode, BNC Connector, 3 Ft Cable, PC Body - Image 5](https://m.media-amazon.com/images/I/61kLAAH29uL.jpg) ## Questions & Answers **Q: Can this be used for testing cationic emulsions?** A: For sticky testing substances, we would recommend the pre-pressurized Labsen 851-3 for viscous solutions. **Q: Will this work with the milwaukee sms122?** A: If the model has BNC connectors, then you at a minimum can test the probe. If it won't give proper readings after trying, you can always return to Amazon for a refund within 30 days. **Q: Is it compatible with Tris containing buffers?** A: No. **Q: is this item can be use in seawater sampling?** A: Yes. This item can be used to test the pH of seawater samples. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Buena Calidad *by J***Z on February 17, 2026* Ideal para medir Salsas espesas. ### ⭐⭐⭐⭐⭐ The best ones I tried as of yet *by V***R on May 16, 2023* I use these pH electrodes in a machine that produces chorine solution from splitting salt water with electricity. So the environment is definitely corrosive even for plastics (over time). Electrode has been performing way more stably then a different brand that I used to buy here on amazon. So I really vouch for these right now, at least for my application. I don't even expect these to last more then a few months since they are constantly dipped in the concentrate, and this one is performing great. ### ⭐⭐⭐⭐ Acordé a su calidad y precio *by J***K on February 1, 2026* Bastante decente, acordé a su precio ## Frequently Bought Together - APERA INSTRUMENTS 201DJ-C Double-Junction pH Electrode, BNC Connector, 3 Ft Cable, PC Body - Apera Instruments AI1113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. Each - APERA INSTRUMENTS 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301) --- ## 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/132233558-apera-instruments-201dj-c-double-junction-ph-electrode-bnc-connector](https://www.desertcart.co.uk/products/132233558-apera-instruments-201dj-c-double-junction-ph-electrode-bnc-connector) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-31*