--- product_id: 132233558 title: "APERA INSTRUMENTS 201DJ-C Double-Junction pH Electrode, BNC Connector, 3 Ft Cable, PC Body" brand: "apera instruments" price: "€ 58.26" currency: EUR in_stock: true category: "Apera Instruments" url: https://www.desertcart.pt/products/132233558-apera-instruments-201dj-c-double-junction-ph-electrode-bnc-connector store_origin: PT region: Portugal --- # 3 ft cable for flexible setup Double-junction tech prevents clogging BNC connector for universal compatibility APERA INSTRUMENTS 201DJ-C Double-Junction pH Electrode, BNC Connector, 3 Ft Cable, PC Body **Brand:** apera instruments **Price:** € 58.26 **Availability:** ✅ In Stock ## Summary > 🔬 Stay ahead in precision—measure smarter, not harder! ## Quick Answers - **What is this?** APERA INSTRUMENTS 201DJ-C Double-Junction pH Electrode, BNC Connector, 3 Ft Cable, PC Body by apera instruments - **How much does it cost?** € 58.26 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/132233558-apera-instruments-201dj-c-double-junction-ph-electrode-bnc-connector) ## 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 - • **Compact & Durable PC Body:** Lightweight yet robust polycarbonate housing built to withstand demanding lab and field conditions. - • **Plug & Play BNC Connector:** Seamlessly integrates with any BNC-compatible pH meter—no adapters needed. - • **Clog-Resistant Double-Junction:** Engineered to stay clean in turbid liquids, ensuring reliable readings every time. - • **Versatile for Tough Environments:** Perfect for wastewater, pools, spas, and environmental monitoring where standard probes fail. - • **Maintenance-Free Gel KCL Electrolyte:** Forget refilling; enjoy consistent performance for up to 6 months. ## Overview The APERA INSTRUMENTS 201DJ-C is a double-junction pH electrode designed for long-term, clog-resistant performance in turbid and challenging liquid environments. Featuring a universal BNC connector and a maintenance-free gel KCL electrolyte, it delivers reliable pH measurements without frequent upkeep. Ideal for professionals monitoring wastewater, pools, and environmental samples, this compact, durable probe ensures consistent accuracy with minimal hassle. ## 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 ## 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 | |---------------|-------| | ASIN | B076M6F7V2 | | Best Sellers Rank | #114,368 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #62 in Electrodes #3,682 in Lab Instruments & Equipment | | Date First Available | October 20, 2017 | | Item Weight | 3.84 ounces | | Item model number | AI3115 | | Manufacturer | Apera Instruments | | Product Dimensions | 6.3 x 0.5 x 0.5 inches | ## 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/31gMjJRPzlL.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/417bMqFLTGL.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/41orFy7A7hL.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/31R3BaU6QEL.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/41nh-NBrWKL.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. ## 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/132233558-apera-instruments-201dj-c-double-junction-ph-electrode-bnc-connector](https://www.desertcart.pt/products/132233558-apera-instruments-201dj-c-double-junction-ph-electrode-bnc-connector) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-10*