--- product_id: 38158901 title: "8oz. pH/EC Calibration Solution Kit (pH 7.00, 4.00, 1413 µS, 12.88 mS), plus 3M KCL Storage Solution & CalBox" brand: "apera instruments" price: "€ 91.64" currency: EUR in_stock: true reviews_count: 8 category: "Apera Instruments" url: https://www.desertcart.be/products/38158901-8oz-ph-ec-calibration-solution-kit-ph-7-00-4 store_origin: BE region: Belgium --- # NIST-traceable certified buffers ±0.01 pH accuracy Includes CalPod organizer 8oz. pH/EC Calibration Solution Kit (pH 7.00, 4.00, 1413 µS, 12.88 mS), plus 3M KCL Storage Solution & CalBox **Brand:** apera instruments **Price:** € 91.64 **Availability:** ✅ In Stock ## Summary > 🧪 Calibrate Like a Pro — Never Miss a Beat in Precision! ## Quick Answers - **What is this?** 8oz. pH/EC Calibration Solution Kit (pH 7.00, 4.00, 1413 µS, 12.88 mS), plus 3M KCL Storage Solution & CalBox by apera instruments - **How much does it cost?** € 91.64 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/38158901-8oz-ph-ec-calibration-solution-kit-ph-7-00-4) ## 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 - • **Streamlined Calibration Workflow:** Organize and access all solutions effortlessly with the included CalPod holder. - • **NIST-Standard Certified Solutions:** Trust in ISO 9001:2015 quality with buffers traceable to official standards. - • **Complete Kit for pH & Conductivity:** Four buffer solutions plus 3M KCL storage solution cover all your meter calibration needs. - • **Precision-Calibrated to Perfection:** Achieve lab-grade ±0.01 pH accuracy for flawless measurements every time. - • **Long-Lasting Freshness & Reliability:** Double-sealed bottles ensure up to 2 years shelf life, keeping your calibration sharp. ## Overview The Apera Instruments 8oz pH/EC Calibration Solution Kit delivers ultra-precise, NIST-traceable buffer solutions (pH 4.00, 7.00; conductivity 1413 µS & 12.88 mS) with ISO-certified quality. Featuring double-sealed bottles and a smart CalPod organizer, it ensures long-lasting freshness and streamlined calibration for all pH and conductivity meters, making it an essential tool for professionals demanding accuracy and efficiency. ## Description Aprea Instruments AI1105 pH/EC Calibration Buffer Solution Kit includes two 8oz. bottles of pH buffer solutions (pH 4. 00 and pH 7. 00), and two 8oz bottles of conductivity (EC) standard calibration solutions (1413 µS/cm and 12. 88 mS/cm), one 4oz bottle of 3M KCL storage solution for pH/ORP electrodes, plus one piece of Aprea CalPod Solution Holder, which helps users organize all the solutions in one place and streamline the entire calibration process. All the buffer solutions are standardized against NIST certified references at 25˚C (77˚F). It’s ideal for the calibration of all pH and conductivity meters. Since pH and conductivity value is affected by temperature, the temperature & pH/conductivity reference charts are provided on the bottle labels for reference. The 3M KCL Storage Solution helps keep the sensitivity and accuracy of your pH probes. All the solutions are double-sealed, not subject to the DOT shipping restrictions, and have a 2-year shelf life (1-year for conductivity solutions). Keeping the standard solutions fresh and uncontaminated is the precondition for accurate pH measurement. Pour 2-3 oz. of solution into a clean container for calibration. If sealed well, the same amount of pH solution poured out can be used for 10-15 times before replacement (conductivity solution up to 5 times). Never pour the used solution back to the original bottle to avoid contamination. The expiration date is printed on the bottle. MSDS documents are downloadable. COA can be achieved per request. Note: Store at room temperature and away from direct sunlight. Keep the bottle tightly closed when not in use. Keep out of reach of children. Review: Must have these if you own a pH pen - Excellent value for the money saved me from buying a brand new pH pen it calibrated my pen perfectly I'm very pleased with my purchase Review: Excellent Calibration Solution - Excellent Calibration Solution ## Features - Reported pH values are accurate to +/- 0.01 pH at 25 °C and are traceable to NIST Standard Reference Materials (SRMs). - Produced in an ISO 9001:2015 certified facility using high-purity reagents, deionized water and certified analytical balances in a temperature controlled environment. - color-coded for quick identification. - Apera CalPod solution holder is included for organizing all the buffers and streamlining your calibration process. - Double-sealed. 2-year expiration for pH and 1-year for conductivity for an unopened bottle. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01MY12Z54 | | Best Sellers Rank | #10,651 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Chemical Buffers | | Brand | Apera Instruments | | Brand Name | Apera Instruments | | Container Type | Bottle | | Customer Reviews | 4.7 out of 5 stars 245 Reviews | | Included Components | AI1105 pH/conductivity solution kit | | Item Form | Liquid | | Item Volume | 8 Fluid Ounces | | Item Weight | 9 Ounces | | Manufacturer | Apera Instruments | | Package Information | Bottle | | UPC | 858718006452 | | Unit Count | 1.0 Count | | Volume | 8 Fluid Ounces | ## Product Details - **Brand:** Apera Instruments - **Item Weight:** 9 Ounces - **Item Volume:** 8 Fluid Ounces - **Package Information:** Bottle - **Item Form:** Liquid ## Images ![8oz. pH/EC Calibration Solution Kit (pH 7.00, 4.00, 1413 µS, 12.88 mS), plus 3M KCL Storage Solution & CalBox - Image 1](https://m.media-amazon.com/images/I/61LJ2kz4oiL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Must have these if you own a pH pen *by A***E on September 10, 2025* Excellent value for the money saved me from buying a brand new pH pen it calibrated my pen perfectly I'm very pleased with my purchase ### ⭐⭐⭐⭐⭐ Excellent Calibration Solution *by D***S on February 18, 2026* Excellent Calibration Solution ### ⭐⭐⭐⭐⭐ Reasonable price for small bottles of pH standards and KCl probe storage solution. *by L***A on February 11, 2026* Ordered these to go with the Apera Instruments AI311 Premium Series PH60 Waterproof pH tester I orderd. They arrived in good order and match the standards included in the kit so no complaints. ## Frequently Bought Together - 8oz. pH/EC Calibration Solution Kit (pH 7.00, 4.00, 1413 µS, 12.88 mS), plus 3M KCL Storage Solution & CalBox - Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy, Lcd display - Apera Instruments 3M KCL Storage Soaking Solution (8 oz.) for pH and ORP Electrodes --- ## 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.be/products/38158901-8oz-ph-ec-calibration-solution-kit-ph-7-00-4](https://www.desertcart.be/products/38158901-8oz-ph-ec-calibration-solution-kit-ph-7-00-4) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-05-11*