--- product_id: 206206695 title: "201DJ-C Double Junction Combined pH Electrode, AI3115" brand: "apera instruments" price: "€ 84.29" currency: EUR in_stock: true reviews_count: 5 category: "Apera Instruments" url: https://www.desertcart.pt/products/206206695-201dj-c-double-junction-combined-ph-electrode-ai3115 store_origin: PT region: Portugal --- # BNC connector compatibility 0-14 pH precision 0-80°C temp range 201DJ-C Double Junction Combined pH Electrode, AI3115 **Brand:** apera instruments **Price:** € 84.29 **Availability:** ✅ In Stock ## Summary > 🔬 Elevate your pH game — precision that professionals trust! ## Quick Answers - **What is this?** 201DJ-C Double Junction Combined pH Electrode, AI3115 by apera instruments - **How much does it cost?** € 84.29 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/206206695-201dj-c-double-junction-combined-ph-electrode-ai3115) ## 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 Integration:** Universal BNC connector fits all compatible pH meters, making upgrades and replacements effortless. - • **Precision Without Batteries:** No power needed for the electrode itself, reducing maintenance and downtime for busy professionals. - • **Robust Polycarbonate Casing:** Engineered for longevity and resistance, this electrode withstands tough lab and field conditions without compromise. - • **Wide pH & Temperature Range:** Accurately measures across the full 0-14 pH scale and up to 80°C, perfect for diverse professional applications. - • **Unmatched Durability for Cloudy Waters:** Double-junction design prevents clogging and contamination, ensuring reliable readings in challenging environments like wastewater and pools. ## Overview The Apera Instruments 201DJ-C is a high-performance double-junction combined pH electrode designed for accurate, long-lasting measurements in complex, cloudy solutions such as wastewater and pools. Featuring a durable polycarbonate casing, a wide 0-14 pH and 0-80°C measurement range, and universal BNC connectivity, it delivers reliable results while minimizing contamination risks. Ideal for environmental monitoring and industrial labs, this electrode is a must-have for professionals demanding precision and durability. ## Description The Apera 201DJ-C double-junction combination pH electrode is ideal for long lasting tests in cloudy water solutions, such as waste water, swimming pools and spas, as well as for environmental monitoring. Due to its structure with double connection point, it prevents the electrode from being clogged and contaminated during measurement. Not suitable for measurements in low ion concentration solutions (e.g. B. : deionised water or distilled water), strong alkaline solutions (pH >12), strong corrosive liquids or for long-term measurements in high temperature solutions (>60°C). Compatible with all pH meters that use BNC connectors. Temperature sensor is not built-in. For complete temperature compensation, a separate temperature sensor is required to activate ATC or enter the temperature manually. Review: Ideal para medir Salsas espesas. Review: Used to replace a bad probe works very well. Responsive and accurate ## Features - Measuring range: 0-14 pH, 0-80 °C - Casing: Polycarbonate. - Diaphragm: Double/Ceramic - Reference electrode: Ag/AgCl - Connection: BNC ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B076M6F7V2 | | Batteries Required? | No | | Best Sellers Rank | 59,743 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 104 in Lab pH Meters | | Customer Reviews | 4.0 4.0 out of 5 stars (76) | | Date First Available | 20 Oct. 2017 | | Included components | Combination pH electrode | | Item Package Quantity | 1 | | Item Weight | 109 g | | Item model number | AI3115 | | Manufacturer | Shanghai Sanxin Instrumentation | | Material | PC_(Polycarbonate), PE_(Polyethylene), Polycarbonate Glass | | Measurement System | US | | Part number | AI3115 | | Product Dimensions | 16 x 1.27 x 1.27 cm; 109 g | | Special Features | Cable length: 3 m, Dimensions: diameter 12 x 160 mm. | ## Images ![201DJ-C Double Junction Combined pH Electrode, AI3115 - Image 1](https://m.media-amazon.com/images/I/51ZSQnqmTaL.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 ### ⭐⭐⭐⭐⭐ Review *by J***Z on 17 February 2026* Ideal para medir Salsas espesas. ### ⭐⭐⭐⭐⭐ Review *by D***L on 25 March 2023* Used to replace a bad probe works very well. Responsive and accurate ### ⭐⭐⭐⭐⭐ Review *by F***O on 9 June 2025* Funciona perfectamente ## 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.pt/products/206206695-201dj-c-double-junction-combined-ph-electrode-ai3115](https://www.desertcart.pt/products/206206695-201dj-c-double-junction-combined-ph-electrode-ai3115) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-05-15*