--- product_id: 25136136 title: "8157BNUMD Epoxy Orion Ross Ultra Triode pH Electrode with Double Junction Refillable and Glass Fiber Junction, 8-Pin MiniDin Connector, 1 m Cable Length" brand: "thermo orion" price: "14.10 DT" currency: TND in_stock: false url: https://www.desertcart.tn/products/25136136-8157bnumd-epoxy-orion-ross-ultra-triode-ph-electrode-with-double store_origin: TN region: Tunisia --- # Faster response times Drift-free stability Built-in temperature sensor 8157BNUMD Epoxy Orion Ross Ultra Triode pH Electrode with Double Junction Refillable and Glass Fiber Junction, 8-Pin MiniDin Connector, 1 m Cable Length **Brand:** thermo orion **Price:** 14.10 DT **Availability:** ❌ Out of Stock ## Summary > ⚡ Stay ahead in the lab with precision that never quits! ## Quick Answers - **What is this?** 8157BNUMD Epoxy Orion Ross Ultra Triode pH Electrode with Double Junction Refillable and Glass Fiber Junction, 8-Pin MiniDin Connector, 1 m Cable Length by thermo orion - **How much does it cost?** 14.10 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/25136136-8157bnumd-epoxy-orion-ross-ultra-triode-ph-electrode-with-double) ## Best For - thermo orion enthusiasts ## Why This Product - Trusted thermo orion brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-in-One Sensing:** Simultaneously measure pH, mV, and temperature with the integrated temperature sensor 🌡️ - • **Rock-Solid Stability:** Minimize recalibration with virtually drift-free measurements, even in fluctuating temperatures 🧪 - • **Durable & Customizable:** Choose from epoxy or glass bodies with refillable or gel options and advanced junction types for your specific needs 🛠️ - • **Versatile Compatibility:** Seamlessly works with Tris buffers and multiple Orion meter series for lab flexibility 🔄 - • **Precision that Keeps Pace:** Experience ultra-fast pH readings with ROSS technology's lightning-quick response times ⚡ ## Overview The 8157BNUMD Epoxy Orion Ross Ultra Triode pH Electrode leverages advanced ROSS technology to deliver ultra-stable, drift-free pH measurements with rapid response times. Featuring a built-in temperature sensor and compatibility with Tris buffers, this refillable electrode offers versatile use across multiple Orion meter series. Its durable epoxy body and innovative junction designs ensure reliable performance in demanding lab environments. ## Description Thermo Scientific Orion Ross Ultra pH Electrodes have a virtually drift-free reference with optimum stability, even in samples varying in temperature. Compatible with Tris buffers. ROSS Ultra Triode electrodes offer all of the benefits of a traditional ROSS electrode with the added benefit of a built-in temperature sensor—measure pH, mV, and temperature all in one electrode! Available in both a refillable and gel version. 8123E, 8123F are for Orion Star Series Meters, 8123G is for Orion PerpHect Meters, and 8123H is for Orion Aplus Series Meters. ROSS combination electrodes, with a unique internal reference system developed by Orion, offer greater accuracy, reproducibility, stability and faster response times than any other standard electrode line. ROSS electrodes minimize drift, even in samples that vary in temperature. Compatible with Tris buffers. All ROSS electrodes listed have a pH measurement range between 0 and 14, a temperature range between 0°C–100°C (0°C–80°C for EF11253), and a ROSS internal reference. ## Features - Uses ROSS technology for greater stability, reproducibility, stability, and faster response times - Less drift over time means less recalibrating - Compatible with Tris buffers - Available in glass or epoxy bodies: ceramic, glass fiber, or sure-flow junctions ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00JX4UEAU | | Best Sellers Rank | #1,314,284 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #752 in Lab Electrochemistry Accessories | | Date First Available | April 25, 2014 | | Item Weight | 1.3 pounds | | Item model number | 8157BNUMD | | Manufacturer | THERMO ORION, INC. | | Package Dimensions | 14.1 x 6.5 x 3.1 inches | ## Images ![8157BNUMD Epoxy Orion Ross Ultra Triode pH Electrode with Double Junction Refillable and Glass Fiber Junction, 8-Pin MiniDin Connector, 1 m Cable Length - Image 1](https://m.media-amazon.com/images/I/813jrCe9F7L.jpg) ![8157BNUMD Epoxy Orion Ross Ultra Triode pH Electrode with Double Junction Refillable and Glass Fiber Junction, 8-Pin MiniDin Connector, 1 m Cable Length - Image 2](https://m.media-amazon.com/images/I/81hCaWqC1uL.jpg) ![8157BNUMD Epoxy Orion Ross Ultra Triode pH Electrode with Double Junction Refillable and Glass Fiber Junction, 8-Pin MiniDin Connector, 1 m Cable Length - Image 3](https://m.media-amazon.com/images/I/81G2BLIG-YL.jpg) ![8157BNUMD Epoxy Orion Ross Ultra Triode pH Electrode with Double Junction Refillable and Glass Fiber Junction, 8-Pin MiniDin Connector, 1 m Cable Length - Image 4](https://m.media-amazon.com/images/I/31gUunbXTqL.jpg) ![8157BNUMD Epoxy Orion Ross Ultra Triode pH Electrode with Double Junction Refillable and Glass Fiber Junction, 8-Pin MiniDin Connector, 1 m Cable Length - Image 5](https://m.media-amazon.com/images/I/81PcGxIMsgL.jpg) --- ## 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.tn/products/25136136-8157bnumd-epoxy-orion-ross-ultra-triode-ph-electrode-with-double](https://www.desertcart.tn/products/25136136-8157bnumd-epoxy-orion-ross-ultra-triode-ph-electrode-with-double) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-08*