--- product_id: 452577319 title: "8oz. pH Calibration Buffer Solution Kit (pH 4.00 & 7.00), plus 4oz. 3M KCL Storage Solution for pH/ORP Electrodes" brand: "apera instruments" price: "€ 111.27" currency: EUR in_stock: true reviews_count: 5 category: "Apera Instruments" url: https://www.desertcart.at/products/452577319-8oz-ph-calibration-buffer-solution-kit-ph-4-00-7 store_origin: AT region: Austria --- # ±0.01 pH accuracy Includes 3M KCL storage solution 1-Year shelf life, double-sealed 8oz. pH Calibration Buffer Solution Kit (pH 4.00 & 7.00), plus 4oz. 3M KCL Storage Solution for pH/ORP Electrodes **Brand:** apera instruments **Price:** € 111.27 **Availability:** ✅ In Stock ## Summary > 🎯 Calibrate like a pro — precision and organization in one sleek kit! ## Quick Answers - **What is this?** 8oz. pH Calibration Buffer Solution Kit (pH 4.00 & 7.00), plus 4oz. 3M KCL Storage Solution for pH/ORP Electrodes by apera instruments - **How much does it cost?** € 111.27 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/452577319-8oz-ph-calibration-buffer-solution-kit-ph-4-00-7) ## 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 - • **Long-Lasting Reliability:** Double-sealed bottles with a 1-year shelf life and clear expiration dates keep your calibration fresh and ready. - • **Temperature-Smart Reference:** Integrated temperature/pH chart on the label helps you adjust for precise readings every time. - • **Probe Sensitivity Maintained:** 3M KCL storage solution preserves electrode accuracy and extends probe life for consistent performance. - • **Mess-Free, Organized Calibration:** Unique Callbox keeps your buffer solutions neat and accessible—no more spills or clutter. - • **Precision-Calibrated for Perfection:** NIST-certified accuracy within ±0.01 pH ensures your measurements are always on point. ## Overview The Apera Instruments AI1114 pH Calibration Buffer Solution Kit offers ultra-precise pH 4.00 and 7.00 solutions standardized against NIST references with ±0.01 accuracy at 25°C. Featuring color-coded, double-sealed bottles with a 1-year shelf life and an included 3M KCL storage solution, this kit ensures your pH meters stay accurate and your calibration process stays clean and efficient. Ideal for professionals demanding reliable, mess-free calibration with temperature-adjusted reference guidance. ## Description The Apera Instruments AI1114 pH calibration buffer solution Kit includes two 16oz bottles of pH buffer solutions (pH 4.00 & pH 7.00); plus Aprea's unique Callbox for easy organization of all buffer solutions. Say Goodbye to all the mess when performing calibrations. The color-coded buffer solutions are standardized against NIST certified pH References within 0.01 pH at 25˚C (77˚F). it’s ideal for the calibration of all types of pH meters. Since pH level is affected by temperature, a temperature/pH reference Chart is provided on the bottle label for reference. All the solutions are double-sealed, not subject to the DOT shipping restrictions; have a 1-year shelf life. Expiration date is printed on the bottle. MSDS documents are downloadable. 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: No issues. As expected. Storage solution is a nice addition. Tested against freshly cal'd unit and spot on. Review: Well packaged and excellent price. ## Features - High accuracy (±0.01 pH): standardized against NIST Certified pH references within 0.01 pH at 25˚c (77˚f). ideal for the calibration of all kinds of pH meters - Color-coded, double-sealed, 1-Year shelf life - Expiration Date and temperature/pH reference chart provided for reference - The 3M KCL storage solution helps keep the sensitivity and accuracy of your pH probes - Non-hazardous product (MSDS is downloadable) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01MSZ4Q7Z | | Are batteries included? | No | | Best Sellers Rank | #180,267 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #425 in Lab pH Meters | | Brand | Apera Instruments | | Customer Reviews | 4.5 4.5 out of 5 stars (305) | | Date First Available | 25 April 2018 | | Item Dimensions LxWxH | 5.1 x 5.1 x 20.3 Centimeters | | Item Height | 8 Inches | | Item Weight | 255 g | | Item Width | 2 Inches | | Item model number | AI1108 | | Manufacturer | Apera Instruments, LLC | | Model number | AI1108 | | Number of Memory Sticks | 1 | | Product Dimensions | 5.08 x 5.08 x 20.32 cm; 255.15 g | ## Images ![8oz. pH Calibration Buffer Solution Kit (pH 4.00 & 7.00), plus 4oz. 3M KCL Storage Solution for pH/ORP Electrodes - Image 1](https://m.media-amazon.com/images/I/61yq0Hm+aKL.jpg) ## Questions & Answers **Q: What is the life span of the solution . Does it have an expiration date?** A: The lifespan of unopened pH buffer solutions (new batches) is two years, one year for the older batches. All of our solutions have expiration dates on the bottles. **Q: Do the buffers and storage solutions have a mold inhibitor?** A: no, I don't think it's have mold inhibitors **Q: Does this come with storage solution?** A: Yes a 4oz bottle of kci storage solution. It's in the pic and description. **Q: Do the buffers and storage solutions have a mold inhibitor?** A: I don't think so. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by K***C on 20 January 2026* No issues. As expected. Storage solution is a nice addition. Tested against freshly cal'd unit and spot on. ### ⭐⭐⭐⭐⭐ Review *by M***N on 12 May 2025* Well packaged and excellent price. ### ⭐⭐⭐⭐⭐ Review *by M***W on 7 September 2025* Seems to be a good quality product ## Frequently Bought Together - Apera Instruments AI1108 pH Calibration Buffer Solution Kit for pH/ORP Electrodes, 4.00 & 7.00 pH, 4 oz & 8 oz - Apera Instruments 3M KCL Storage Soaking Solution (8 oz.) for pH and ORP Electrodes - Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy, Lcd display --- ## 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/452577319-8oz-ph-calibration-buffer-solution-kit-ph-4-00-7](https://www.desertcart.at/products/452577319-8oz-ph-calibration-buffer-solution-kit-ph-4-00-7) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-04-22*