--- product_id: 46322871 title: "LLC-AI1104 16oz. pH Calibration Buffer Solution Kit (pH 4.00, 7.00 & 10.01), plus 3M KCL Storage Solution and CalBox" brand: "apera instruments" price: "€ 115.08" currency: EUR in_stock: true reviews_count: 13 category: "Apera Instruments" url: https://www.desertcart.be/products/46322871-llc-ai1104-16oz-ph-calibration-buffer-solution-kit-ph-4 store_origin: BE region: Belgium --- # Color-coded for quick ID ±0.01 pH accuracy ISO 9001:2015 certified purity LLC-AI1104 16oz. pH Calibration Buffer Solution Kit (pH 4.00, 7.00 & 10.01), plus 3M KCL Storage Solution and CalBox **Brand:** apera instruments **Price:** € 115.08 **Availability:** ✅ In Stock ## Summary > 🧪 Calibrate like a pro—because precision is the new power move. ## Quick Answers - **What is this?** LLC-AI1104 16oz. pH Calibration Buffer Solution Kit (pH 4.00, 7.00 & 10.01), plus 3M KCL Storage Solution and CalBox by apera instruments - **How much does it cost?** € 115.08 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/46322871-llc-ai1104-16oz-ph-calibration-buffer-solution-kit-ph-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 - • **Traceable Trust:** Values traceable to NIST Standard Reference Materials for unmatched confidence in results. - • **Certified Purity:** Manufactured in ISO 9001:2015 & ISO 17025:2017 accredited facilities using ultra-pure reagents. - • **Precision Perfected:** Achieve lab-grade ±0.01 pH accuracy for flawless calibration every time. - • **Long-Lasting Freshness:** Double-sealed bottles with a 2-year unopened shelf life keep your solutions reliable. - • **Streamlined Calibration:** Includes CalPod holder to organize buffers and simplify your workflow—no more clutter. ## Overview The Apera AI1104 pH Calibration Buffer Kit offers three high-purity buffer solutions (pH 4.00, 7.00 & 10.01) with ±0.01 accuracy at 25°C, produced under strict ISO certifications and traceable to NIST standards. It includes a 3M KCL storage solution and a CalPod holder for organized, efficient calibration, all sealed for a 2-year shelf life unopened. ## Description Apera Instruments AI1104 16oz. pH Calibration Buffer Solution Kit (pH 4.00, 7.00 & 10.01), plus 3M KCL Soaking Storage Solution and CalPod Solution Holder. Apera pH calibration buffers are produced in an ISO 9001:2015 facility with ISO 17025:2017 accreditation using high-purity reagents, deionized water and certified analytical balances in a temperature controlled environment. Reported values are accurate to +/- 0.01 pH at 25°C and are traceable to NIST Standard Reference Materials (SRMs). MSDS documents are downloadable. Certificate of analysis can be achieved by request. All pH buffers have a 2-year expiration from manufacture for an unopened bottle. Review: Great design, perfect ph. - Works as intended for my ph meter. Great design for solution storage and ph meter holder. Review: Great product - Love this now its easier for me to ph my pen without having to pull out 3 cups etc.came well packaged & a day earlier ! ## Features - Reported 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 from manufacture for an unopened bottle. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01N9I9INZ | | Best Sellers Rank | #4,532 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Chemical Buffers | | Date First Available | December 16, 2016 | | Item Weight | 1.06 pounds | | Item model number | AI1104 | | Manufacturer | Apera Instruments | | Product Dimensions | 2 x 2 x 8 inches | ## Images ![LLC-AI1104 16oz. pH Calibration Buffer Solution Kit (pH 4.00, 7.00 & 10.01), plus 3M KCL Storage Solution and CalBox - Image 1](https://m.media-amazon.com/images/I/71sFDSPDZTL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Most of these kits are currently out of stock. is there an eta or more stock, please? thanks.** A: I don’t have any information you can call apera instruments they should be able to help you with your inquiry. **Q: Why can't i bay this calibration kit and get it delivered to silkeborg denmark, when i can bay the apera pc60 and get it delivered. it doesn't make se** A: Perhaps this company doesn't have an export license? **Q: Does refrigeration after opening extend life of solutions?** A: I never had and it's been fine. **Q: Would the buffer solutions and storage solution work with the Extech pH meter?** A: I would think it would work with your meter providing what you are trying to buffer falls within that range. The storage solution should work with all meters. I would contact Extech and confirm with them to be 100% certain. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great design, perfect ph. *by A***R on November 1, 2025* Works as intended for my ph meter. Great design for solution storage and ph meter holder. ### ⭐⭐⭐⭐⭐ Great product *by A***O on February 12, 2026* Love this now its easier for me to ph my pen without having to pull out 3 cups etc.came well packaged & a day earlier ! ### ⭐⭐⭐⭐⭐ Good value for pH references *by T***P on October 10, 2025* These are the go-to reference solutions for testing the acid levels in wine. This brand has a 2-year expiration date. The coloration of these references makes it easy to not mix them up. ## Frequently Bought Together - Apera Instruments, LLC-AI1104 16oz. pH Calibration Buffer Solution Kit (pH 4.00, 7.00 & 10.01), plus 3M KCL Storage Solution and CalBox - 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.be/products/46322871-llc-ai1104-16oz-ph-calibration-buffer-solution-kit-ph-4](https://www.desertcart.be/products/46322871-llc-ai1104-16oz-ph-calibration-buffer-solution-kit-ph-4) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-04-25*