--- product_id: 82291024 title: "201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301)" brand: "apera instruments" price: "8337 som" currency: KGS in_stock: true reviews_count: 13 category: "Apera Instruments" url: https://www.desertcart.kg/products/82291024-201-c-combination-ph-electrode-bnc-connector-polycarbonate-body-ai1301 store_origin: KG region: Kyrgyzstan --- # 50 Ohm low impedance for ultra-fast response Standard BNC connector for universal compatibility Detachable sensor shield for robust membrane protection 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301) **Brand:** apera instruments **Price:** 8337 som **Availability:** ✅ In Stock ## Summary > ⚡ Measure Smarter, Not Harder – Precision pH at Your Fingertips! ## Quick Answers - **What is this?** 201-C Combination pH Electrode, BNC Connector, Polycarbonate-Body (AI1301) by apera instruments - **How much does it cost?** 8337 som with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/82291024-201-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 Last:** Durable polycarbonate body paired with a protective sensor shield guards against accidental damage. - • **Plug & Play Compatibility:** Standard BNC connector ensures seamless integration with most pH meters on the market. - • **Rapid & Reliable Readings:** Special lithium glass membrane delivers quick, stable pH measurements every time. - • **Maintenance-Free Operation:** Gel KCL electrolyte design eliminates the hassle of refilling, keeping your workflow smooth. - • **Certified Quality Assurance:** CE, RoHS certified and ISO 9001:2015 manufactured for trusted, professional-grade performance. ## Overview The APERA Instruments 201-C Combination pH Electrode features a special lithium glass membrane with low 50 Ohm impedance for fast, stable pH readings across a 0–14 pH range. Its durable polycarbonate body and detachable sensor shield protect the sensitive glass membrane, while the standard BNC connector ensures broad compatibility. Designed for general water solution testing, it requires no electrolyte refilling thanks to its gel KCL design. Certified under CE, RoHS, and ISO 9001:2015 standards, this electrode offers professional reliability for scientific, environmental, 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: Just as good as Bluelab Probe - Cheaper yet just as effective as the blue lab replacement probe. Review: Quality - so far so good ## 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 | #46,127 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 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 ![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 ### ⭐⭐⭐⭐⭐ Just as good as Bluelab Probe *by J***. on October 2, 2025* Cheaper yet just as effective as the blue lab replacement probe. ### ⭐⭐⭐⭐⭐ Quality *by J***. on December 4, 2025* so far so good ### ⭐⭐⭐⭐⭐ Best long lasting meter *by W***Y on November 17, 2024* I've used this brand longer than any others before needing to replace They work soo good...guaranteed true ph readings ## 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.kg/products/82291024-201-c-combination-ph-electrode-bnc-connector-polycarbonate-body-ai1301](https://www.desertcart.kg/products/82291024-201-c-combination-ph-electrode-bnc-connector-polycarbonate-body-ai1301) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-05-12*