--- product_id: 261169918 title: "Dissolved Oxygen Meter with Electrode Filling Fluid" brand: "rcyago" price: "S/.44" currency: PEN in_stock: false reviews_count: 8 url: https://www.desertcart.pe/products/261169918-dissolved-oxygen-meter-with-electrode-filling-fluid store_origin: PE region: Peru --- # 0.0-40.0 mg/L range Polarographic sensor tech Auto power-off feature Dissolved Oxygen Meter with Electrode Filling Fluid **Brand:** rcyago **Price:** S/.44 **Availability:** ❌ Out of Stock ## Summary > 💧 Dive into precision with every measurement! ## Quick Answers - **What is this?** Dissolved Oxygen Meter with Electrode Filling Fluid by rcyago - **How much does it cost?** S/.44 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/261169918-dissolved-oxygen-meter-with-electrode-filling-fluid) ## Best For - rcyago enthusiasts ## Why This Product - Trusted rcyago brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Energy Saving:** Auto power-off after 8 minutes of inactivity to extend battery life. - • **User-Friendly Design:** Digital display with backlight ensures easy data reading, even in low light. - • **Precision Measurement:** Accurate dissolved oxygen and temperature readings for optimal aquatic health. - • **Versatile Applications:** Perfect for aquariums, pools, and scientific research—wherever water quality matters. - • **Hassle-Free Calibration:** No need to open the electrode cover for calibration—just dip and measure! ## Overview The Dissolved Oxygen Meter is a cutting-edge instrument designed for accurate measurement of dissolved oxygen levels and temperature in various aquatic environments. With a measurement range of 0.0-40.0 mg/L, it features a polarographic sensor and a user-friendly digital display. Ideal for aquariums, pools, and scientific research, this meter ensures reliable readings with easy calibration and energy-saving features. ## Description Product description RCYAGO Dissolved Oxygen Meter Dissolved oxygen refers to the molecular oxygen dissolved in water. The content of dissolved oxygen in water is closely related to the partial pressure of oxygen in the air and the temperature of the water. Dissolved oxygen is an indispensable condition for the survival of aquatic organisms. LCD Backlight Display Adopts the digital screen display with backlight, which is more clear and convenient to read data. Dissolved Oxygen Range You can quickly test values in the range of 0.0-40.0mg/L. How to know whether the living environment of aquatic organisms has enough dissolved oxygen (DO)? Digital dissolved oxygen meter, simply put the probe into the measured solution (without opening the protective cover of the electrode), and the dissolved oxygen concentration can be quickly measured. Aquaculture includes freshwater and mariculture. when the concentration of dissolved oxygen is less than (3-4) mg/L, aquatic organisms are difficult to survive, so the dissolved oxygen meter is very important for aquaculture, biological reaction, etc. Calibration Wide Range of Application Dissolved Oxygen Meter Aquaculture Dissolved oxygen is a parameter that must be measured in aquaculture. Industrial In order to ensure water quality, the water plant needs to test dissolved oxygen in the water source. Educational A dissolved oxygen meter is an ideal choice for reading the dissolved oxygen fast and accurately in the laboratory. Environmental Dissolved oxygen in rivers, lakes, and seawater is one of the important indicators to measure water quality. Review: Awesome product! - Very good product, accurate and a very nice presentation. Great value for the price. Works as expected. Will be very helpful if you want to measure the oxygen levels in the water. Review: Worthless instructions - Throw away the instructions that come with this product. They are completely useless, and even misleading. There are several good you tube videos that show how to use this. Go by them instead. The readings I am seeing seem to make sense, but there is no way to gage the accuracy of this because there is no standard solution supplied to check it against. Would rather have a known standard solution to ensure the readings are actually correct. ## Features - Dissolved oxygen meter is a precision instrument for measuring dissolved oxygen and temperature. The dissolved oxygen probe is a thin film with a polarographic sensor and a thermistor for temperature measurement and temperature compensation. The permeable membrane separates the measured solution from the sensing electrode but allows oxygen to pass through the membrane to react, and the concentration can be measured. - Dissolved oxygen refers to the concentration of molecular oxygen dissolved in water, generally expressed in mg/L (ppm) and saturation percentage (%), which is the percentage of dissolved oxygen in 1L of water. The oxygen concentration of our dissolved oxygen meter is 0.0-40.0mg/L, most of the range of dissolved oxygen meters on the market is 0.0-20mg/L. When measuring and calibrating, needn't open the protective cover of the electrode, just put the electrode in the solution for measurement. - Detachable probe, easy to replace, equipped with 6 probe protective covers and anaerobic water calibration powder. The film inside the protective cover cannot be taken apart. After using it for a period of time, the test value is inaccurate and the calibration is still inaccurate, and the membrane sleeve needs to be replaced. - Adopts the digital screen display with backlight, which is more clear and convenient to read data. Auto power-off in 8 minutes if not using it. Low battery indication. Oxygen solubility will be affected by temperature, atmospheric pressure, and salinity. Our instrument with temperature compensation can meet normal use. - It is very suitable for measuring the dissolved oxygen level and temperature in a wide range of aquariums, swimming pools, ponds, freshwater aquaculture, marine aquaculture, school teaching experiments, laboratory sterile environment, aquaculture, scientific research, and other fields. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08NFYY4L8 | | Best Sellers Rank | #681,683 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #82 in Dissolved Oxygen Meters & Accessories | | Brand | RCYAGO | | Brand Name | RCYAGO | | Customer Reviews | 4.0 out of 5 stars 129 Reviews | | Included Components | 6 Probe Covers, 1 Electrode Filling Solution, 1 Anaerobic Water Powder, 1 Manual | | Item Dimensions | 6.1 x 0.01 x 0.01 inches | | Item Length | 6.1 Inches | | Item dimensions L x W x H | 6.1 x 0.01 x 0.01 inches | | Lower Temperature Rating | 0.1 Degrees Celsius | | Manufacturer | RCYAGO | | Material | Plastic | | Material Type | Plastic | | Model | DO9100 | | Part Number | DO9100 | | Response Time | 8000 Milliseconds | | Style | Digital Dissolved Oxygen Meter | | Style Name | Digital Dissolved Oxygen Meter | | UPC | 784104073213 | | Unit Count | 1 Count | | Upper Temperature Rating | 40 Degrees Celsius | ## Product Details - **Brand:** RCYAGO - **Special Feature:** High Accuracy - **Color:** Black - **Age Range (Description):** Adult - **Included Components:** 6 Probe Covers, 1 Electrode Filling Solution, 1 Anaerobic Water Powder, 1 Manual - **Outer Material:** Plastic - **Display Type:** Digital - **Product Care Instructions:** Hand Wash Only - **Unit Count:** 1 Count - **Power Source:** Battery Powered ## Images ![Dissolved Oxygen Meter with Electrode Filling Fluid - Image 1](https://m.media-amazon.com/images/I/51it+PYFPhL.jpg) ![Dissolved Oxygen Meter with Electrode Filling Fluid - Image 2](https://m.media-amazon.com/images/I/61qDymmw9eL.jpg) ![Dissolved Oxygen Meter with Electrode Filling Fluid - Image 3](https://m.media-amazon.com/images/I/613Ua8ORdUL.jpg) ![Dissolved Oxygen Meter with Electrode Filling Fluid - Image 4](https://m.media-amazon.com/images/I/71Qg9tyLyGL.jpg) ![Dissolved Oxygen Meter with Electrode Filling Fluid - Image 5](https://m.media-amazon.com/images/I/71LjLeeiS4L.jpg) ## Questions & Answers **Q: Is the probe submersible? I want to measure DO in the lower portions on a pond without having to try to capture samples.** A: The probe is submersible but not the top controller part. I spliced in a piece of 4 conductor cable to get it deeper. **Q: how long is the probe ?** A: The probe is five inches in length. **Q: Does this work in the mountains at 5,000 feet elevation?** A: The manual says it does not compensate for altitude/pressure. Only temperature. Its unclear if it would work properly at 5,000 feet. **Q: Does it come with a calibration solution or, how do you make anaerobic water?** A: I bought this thing recently for transporting fish/trout. Couple things to note I have found. No Calibration solution. I find it odd that the way you calibrate is against outside air. You calibrate it in air or zero it out against air. Then use it. I also found that it needs to be calibrated every use. I may try calibrating in a solution of saturated C02 ( in other words take all the oxygen out ) but I have no way of knowing just exactly when that may be. The temperature ( and if indeed the DO is accurate ) takes over a minute to be the same accuracy as analog pool thermometer. IDK if I ultimately trust this thing based on some things here. Does not make sense readings of 3mg/L in water supporting trout, when they need 6+ or they'd be jumping out of water and dying. So, not convinced the thing can be calibrated correctly in order to read correctly. Hope this answers any questions. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Awesome product! *by L***E on March 30, 2021* Very good product, accurate and a very nice presentation. Great value for the price. Works as expected. Will be very helpful if you want to measure the oxygen levels in the water. ### ⭐⭐⭐⭐ Worthless instructions *by R***Y on December 11, 2022* Throw away the instructions that come with this product. They are completely useless, and even misleading. There are several good you tube videos that show how to use this. Go by them instead. The readings I am seeing seem to make sense, but there is no way to gage the accuracy of this because there is no standard solution supplied to check it against. Would rather have a known standard solution to ensure the readings are actually correct. ### ⭐⭐⭐⭐⭐ Excellent product *by T***A on June 23, 2022* Bought this to keep track of a personal pond. So far it has been excellent and extremely helpful. ## Frequently Bought Together - RCYAGO Dissolved Oxygen Meter with Electrode Filling Fluid - API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored - Monitor DISSOLVED Oxygen Test KIT (50 Tests) - Monitor Aquarium and aquaculture Water Quality --- ## 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.pe/products/261169918-dissolved-oxygen-meter-with-electrode-filling-fluid](https://www.desertcart.pe/products/261169918-dissolved-oxygen-meter-with-electrode-filling-fluid) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-05-22*