--- product_id: 549782158 title: "Glass CO2 Drop Checker – CO2 Monitor Kit for Aquarium Planted Tank CO2 System (Drop Checker with Solution)" brand: "jardli" price: "¥4240" currency: JPY in_stock: true reviews_count: 10 url: https://www.desertcart.jp/products/549782158-glass-co2-drop-checker-co2-monitor-kit-for-aquarium-planted store_origin: JP region: Japan --- # Compact 4.49x3.78x1.73 inch size Lab-grade borosilicate glass Pre-mixed 4dKH indicator solution Glass CO2 Drop Checker – CO2 Monitor Kit for Aquarium Planted Tank CO2 System (Drop Checker with Solution) **Brand:** jardli **Price:** ¥4240 **Availability:** ✅ In Stock ## Summary > 🌿 Keep your planted tank thriving with precision CO2 insights! ## Quick Answers - **What is this?** Glass CO2 Drop Checker – CO2 Monitor Kit for Aquarium Planted Tank CO2 System (Drop Checker with Solution) by jardli - **How much does it cost?** ¥4240 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/549782158-glass-co2-drop-checker-co2-monitor-kit-for-aquarium-planted) ## Best For - jardli enthusiasts ## Why This Product - Trusted jardli brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Instant Visual Alerts:** Color-changing indicator (green, blue, yellow) gives you real-time CO2 status at a glance. - • **Durability Meets Clarity:** Crafted from premium borosilicate glass for long-lasting strength and crystal-clear readings. - • **Complete Ready-to-Use Kit:** Includes drop checker, 15mL solution, and pipette—everything you need to start monitoring today. - • **Effortless Precision Monitoring:** Pre-mixed indicator solution means zero guesswork—just fill and monitor your CO2 levels instantly. - • **Optimize Plant Health Like a Pro:** Maintain perfect CO2 balance to boost your aquarium’s lush growth and vibrant ecosystem. ## Overview The JARDLI Glass CO2 Drop Checker Kit offers aquarium enthusiasts a hassle-free, accurate way to monitor CO2 levels using a pre-mixed 4dKH indicator solution and durable borosilicate glass. Designed for planted tanks, this compact kit provides instant color-coded feedback to ensure optimal plant health and ecosystem balance. ## Description Each piece is unique. Superior quality. Elegant and cleaner lines. The nano co2 drop checker makes your aquarium look less cluttered. It's a huge upgrade in terms of aesthetics. Using only the highest quality, laboratory-grade, borosilicate glass ​for maximum strength, durability. The channel diameter is nearly twice that of similar products on the market. It greatly facilitates the addition of the detection liquid. It facilitates the diffusion of carbon dioxide gas and shortens the reaction time of the indicator solution. It consists of a pre-made 4dKH solution containing the appropriate amount of indicator. Easy to use, no mixing required. Simply open cap and fill CO2 checker. The solution comes in a 15ml (0.5 fl oz) dropper bottle for ease of use. The solution will last 6 months if changed on a monthly basis. Nano Drop Checker X1 CO2 Indicator Solution X1 Suction Cups X2 Pipette X1 (for ease of filling drop checker with indicator fluid) If the solution in the drop checker changes to yellow, then the CO2 level in the aquarium is too high. If the indicator solution is green in color, then appropriate levels of carbon dioxide exist in the aquarium, and no action is required. If the solution in the drop checker changes to blue, then the CO2 level in the aquarium is too low. Our desire to recreate nature within aquariums is rooted in the beauty of Earth. Being able to mimic one of Earth’s countless designs through aquascaping is something special, which leads to a better understanding of the global environment. ## Features - Easy To Use: It consists of a pre-made 4dKH solution containing the appropriate amount of indicator. No mixing is required. Just fill the carbon dioxide monitor drop checker 1/2 full of indicator solution and place it in the planted tank with the help of the suction cup. - Precise Readings: If the indicator solution is green in color, then appropriate levels of carbon dioxide exist in the aquarium, and no action is required. If the solution in the drop checker changes to blue or yellow, then the CO2 levels in the aquarium are too low or too high, respectively. - Essential Item: You need to be very careful about your plants' health; carbon dioxide is one of their major requirements. This CO2 monitor kit is one of your aquarium kit's most vital items that helps you keep a constant check on CO2 levels in the water. - Quality Guaranteed: The drop checker is made of the highest quality, laboratory-grade, borosilicate glass ​for maximum strength and durability. - Complete kit includes: 1x glass drop checker, 1x bottle of pre-mixed indicator solution (15 mL / 0.5 fl oz), 1x pipette ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0C9WM7TKY | | Best Sellers Rank | #69 in Aquarium Test Kits | | Date First Available | July 1, 2023 | | Manufacturer | JARDLI | | Package Dimensions | 4.49 x 3.78 x 1.73 inches; 1.59 ounces | ## Images ![Glass CO2 Drop Checker – CO2 Monitor Kit for Aquarium Planted Tank CO2 System (Drop Checker with Solution) - Image 1](https://m.media-amazon.com/images/I/71M7eBOprqL.jpg) ## Available Options This product comes in different **Pattern Name** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Doesn’t trap duckweed *by on Reviewed in the United States September 5, 2024* Easy to fill and read. The smaller hole in it meant it didn’t trap duckweed like my other drop checker. Will definitely be ordering more. ### ⭐⭐⭐⭐⭐ accurate *by on Reviewed in the United States May 24, 2026* works great. I also have a ph meter it seems to do a good job tracking along with the meter ### ⭐⭐⭐⭐ Bastante estético y contiene lo necesario para su uso. *by on Reviewed in the United States August 3, 2025* Le coloco 4 estrellas ⭐ sólo porque no trae un manual del fabricante en donde se indique si es con mezcla o como usarlo. Tuve que remitirme a la descripción del producto, teniendo en cuenta que cada Drop Checker, se maneja diferente.Sin embargo, el producto tiene un aspecto muy bonito visualmente, trae 2 ventosas para su anclaje. Lo acabe de poner iniciando con un sistema de CO2, ya solo me queda esperar y ver cuando cambia del color azul, lleva par de horas y por el momento no lo ha hecho ya queda esperar. ## Frequently Bought Together - JARDLI Glass CO2 Drop Checker – CO2 Monitor Kit for Aquarium Planted Tank CO2 System (Drop Checker with Solution) - Clscea Aquarium Glass CO2 Diffuser Atomizer with U Tube Check Valve Suction Cup Premium Version --- ## 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.jp/products/549782158-glass-co2-drop-checker-co2-monitor-kit-for-aquarium-planted](https://www.desertcart.jp/products/549782158-glass-co2-drop-checker-co2-monitor-kit-for-aquarium-planted) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-06*