--- product_id: 290274578 title: "201-C Combination pH Electrode, BNC Connector, Polycarbonate-body (AI1301)" brand: "apera instruments" price: "COP 335918" currency: COP in_stock: true reviews_count: 5 category: "Apera Instruments" url: https://www.desertcart.co/products/290274578-201-c-combination-ph-electrode-bnc-connector-polycarbonate-body-ai1301 store_origin: CO region: Colombia --- # 50Ω ultra-low impedance for rapid response Standard BNC connector for universal compatibility Detachable sensor shield for glass membrane protection 201-C Combination pH Electrode, BNC Connector, Polycarbonate-body (AI1301) **Brand:** apera instruments **Price:** COP 335918 **Availability:** ✅ In Stock ## Summary > ⚡ Measure smarter, not harder — precision pH sensing that keeps you ahead ## Quick Answers - **What is this?** 201-C Combination pH Electrode, BNC Connector, Polycarbonate-body (AI1301) by apera instruments - **How much does it cost?** COP 335918 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/290274578-201-c-combination-ph-electrode-bnc-connector-polycarbonate-body-ai1301) ## 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 - • **Built to endure:** Polycarbonate body with sensor shield guards against accidental damage - • **Plug & play precision:** Standard BNC connector fits seamlessly with most pH meters - • **Trusted quality assurance:** CE, RoHS certified and ISO 9001:2015 manufactured for professional-grade accuracy - • **Lightning-fast pH readings:** Special lithium glass membrane ensures swift, stable measurements - • **Maintenance-free reliability:** Gel KCL electrolyte means no refilling hassles ## Overview The Apera 201-C Combination pH Electrode features a special lithium glass membrane with ultra-low 50 Ohm impedance for fast, stable pH readings across 0–14 pH and temperatures up to 80°C. Its durable polycarbonate body and detachable sensor shield protect the sensitive glass membrane from damage, while the gel KCL electrolyte eliminates the need for refilling. Equipped with a standard BNC connector, it offers broad compatibility with pH meters. Certified by CE, RoHS, and ISO 9001:2015, this electrode is ideal for scientific research, environmental monitoring, and quality control applications. ## 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.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) The product is CE and RoHS certified and is manufactured under an ISO 9001 2015 certified quality system Review: Funkar inte till Hayward saltklorinator - Funkade inte alls till vår Hayward Aquarite saltklorinator Review: Prácticos y eficientes - Compatible con varios transmisores y de fácil conexión y calibración de campo ## 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 | | Item model number | AI1301 | | Manufacturer | Apera Instruments | | Product Dimensions | 24 x 6 x 4 cm; 0.28 g | ## Images ![201-C Combination pH Electrode, BNC Connector, Polycarbonate-body (AI1301) - Image 1](https://m.media-amazon.com/images/I/51bX1McL+6L.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. ## Customer Reviews ### ⭐ Funkar inte till Hayward saltklorinator *by A***R on 14 May 2023* Funkade inte alls till vår Hayward Aquarite saltklorinator ### ⭐⭐⭐⭐⭐ Prácticos y eficientes *by C***R on 26 March 2025* Compatible con varios transmisores y de fácil conexión y calibración de campo ### ⭐⭐⭐⭐⭐ sehr gut und günstig *by F***E on 12 October 2024* hab sie Sonde nun die ganze Saison iin Betrieb, funkt einwandfrei absolute Kafempfehlung ## 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.co/products/290274578-201-c-combination-ph-electrode-bnc-connector-polycarbonate-body-ai1301](https://www.desertcart.co/products/290274578-201-c-combination-ph-electrode-bnc-connector-polycarbonate-body-ai1301) --- *Product available on Desertcart Colombia* *Store origin: CO* *Last updated: 2026-07-12*