--- product_id: 82291024 title: "APERA INSTRUMENTS 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301)" brand: "apera instruments" price: "€ 63.70" currency: EUR in_stock: true category: "Apera Instruments" url: https://www.desertcart.at/products/82291024-apera-instruments-201-c-combination-ph-electrode-bnc-connector-polycarbonate store_origin: AT region: Austria --- # 50Ω ultra-low impedance for lightning-fast readings Universal BNC connector for seamless device compatibility Detachable sensor shield guards fragile glass membrane APERA INSTRUMENTS 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301) **Brand:** apera instruments **Price:** € 63.70 **Availability:** ✅ In Stock ## Summary > ⚡ Stay ahead with the fastest, toughest pH electrode on the market! ## Quick Answers - **What is this?** APERA INSTRUMENTS 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301) by apera instruments - **How much does it cost?** € 63.70 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/82291024-apera-instruments-201-c-combination-ph-electrode-bnc-connector-polycarbonate) ## 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 - • **Wide Application Range:** Accurate pH measurement from 0 to 14 and temperatures up to 80°C for versatile lab and field use - • **Plug & Play Compatibility:** Standard BNC connector ensures effortless integration with most pH meters - • **Durability Meets Precision:** Polycarbonate body with sensor shield protects against accidental damage during fieldwork - • **Maintenance-Free Operation:** Gel KCL electrolyte design eliminates refilling, saving you time and hassle - • **Rapid & Reliable pH Readings:** Special lithium glass membrane delivers stable, precise measurements in seconds ## Overview The APERA INSTRUMENTS 201-C Combination pH Electrode features a cutting-edge lithium glass membrane with ultra-low 50 Ohm impedance for rapid, stable pH readings. Its durable polycarbonate body and detachable sensor shield protect the sensitive glass membrane from damage, while the standard BNC connector ensures broad compatibility. Designed for hassle-free use with a maintenance-free gel KCL electrolyte, it accurately measures pH across the full 0–14 range and temperatures up to 80°C, making it ideal for scientific research, environmental monitoring, and quality control. ## Description Apera Instruments 201-C Combination pH Electrode is made for general water solutions' pH measurement in scientific research, environmental monitoring, and quality control. Apera's special lithium glass membrane ensures low impedance (as low as 50 Ohm) and stable potentials, which helps generate quick and stable pH readings.Detachable sensor shield is built upon the sensitive glass membrane to protect it from accidental damage. Standard BNC connector, compatible with any pH meters that adopt BNC connectors. Measurement Range: 0–14 pH, 0–80˚C (32–176˚F); Housing: Polycarbonate; Junction: Ceramic; Reference Electrode: Ag/AgCl; Connector: BNC; Size: ø12*160 mm; Cable: 3 Ft; Temperature sensor: N/A. Not suitable for testing in highly corrosive or viscous liquids, or for continuous testing in high-temperature solutions (>140˚F). The product is CE and RoHS certified and is manufactured under an ISO 9001: 2015 certified quality system. ## Features - Apera's special lithium glass membrane ensures quick and stable pH readings. - 50 Ohm low impedance for swift response. - Gel KCL electrolyte adopted. No need for refilling. - Detachable sensor shield is built upon the sensitive glass membrane to protect it from accidental damage. - Standard BNC connector ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B076BFK5WY | | Best Sellers Rank | #98,505 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #12 in Lab Electrochemistry Accessories | | Date First Available | October 9, 2017 | | Item Weight | 0.01 ounces | | Item model number | AI1301 | | Manufacturer | Apera Instruments | | Product Dimensions | 9.45 x 2.36 x 1.57 inches | ## Images ![APERA INSTRUMENTS 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301) - Image 1](https://m.media-amazon.com/images/I/51bX1McL+6L.jpg) ![APERA INSTRUMENTS 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301) - Image 2](https://m.media-amazon.com/images/I/61e5gMK2WCL.jpg) ![APERA INSTRUMENTS 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301) - Image 3](https://m.media-amazon.com/images/I/61JDGvdtTYL.jpg) ![APERA INSTRUMENTS 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301) - Image 4](https://m.media-amazon.com/images/I/51BKoZ03w4L.jpg) ![APERA INSTRUMENTS 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301) - Image 5](https://m.media-amazon.com/images/I/61kLAAH29uL.jpg) ## Questions & Answers **Q: Can this pro be totally submerged underwater? What is the recommended depth of placement?** A: Yes it can be submerged. There is no recommended depth beyond simply ensuring the sensor on the tip is exposed to the test sample. The cable is 3 feet long. **Q: Can this probe be left in contact with pool water indefinitely?** A: No, the chlorine is corrosive and will ruin the sensor. **Q: Can use in saltwater? Ph controller?** A: Yes on both accounts **Q: will this work with chemtrol and do you offer an ORP probes** A: If by chemtrol you mean monitoring wall-mounted meters, then we would recommend the 201DJ-C instead. It features more durable and enduring design for long-term water testing and less likelihood of losing calibration to turbulent water as quickly as the 201-C. Yes, there is an ORP probe, the Apera 301PT-C. ## Frequently Bought Together - APERA INSTRUMENTS 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301) - Apera Instruments AI1113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. Each - APERA INSTRUMENTS 201DJ-C Double-Junction pH Electrode, BNC Connector, 3 Ft Cable, PC Body --- ## 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.at/products/82291024-apera-instruments-201-c-combination-ph-electrode-bnc-connector-polycarbonate](https://www.desertcart.at/products/82291024-apera-instruments-201-c-combination-ph-electrode-bnc-connector-polycarbonate) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-07-21*