The Best Lab Dissolved Oxygen Meters

Looking for the best Lab Dissolved Oxygen Meters?

Discover now our comparison of the best Lab Dissolved Oxygen Meters. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Lab Dissolved Oxygen Meters are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Lab Dissolved Oxygen Meters in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1

Portable Dissolved Oxygen Meter,Lab Dissolved Oxygen DO Meter,200 Sets of Data Storage,0.0-20.0 mg/L, 0.1 mg/L Resolution, -2.0 Percent Accuracy, 200 Percent Saturation Rang

IP65 waterproof,spill-proof and dust-proof durable and reliable,Data Storage 200 sets (GLP-compliant)
Multi-reading feature allows auto-read and continuous-read.
Automatic/Manual temperature compensation ensures accurate results.
Auto-hold feature senses and locks the measurement endpoint.
Auto-power off feature effectively extends the battery service life.
Reset feature automatically resumes all settings back to factory default options.
Support for air-saturated water or zero oxygen calibration
Manual barometric pressure compensation.
Wide range of applications: very suitable for freshwater aquaculture, marine aquaculture, swimming pools, laboratories, education and scientific research.

SaleNo. 2

Milwaukee MW600 LED Economy Portable Dissolved Oxygen Meter with 2 Point Manual Calibration, 0.0 - 19.0 mg/L, 0.1 mg/L Resolution, +/-1.5 percent Accuracy, 100 Percent Saturation Range

Portable dissolved oxygen (DO) meter for educational, aquaculture, water analysis, and environmental analysis applications
Two-point manual calibration, automatic temperature compensation from 0 to 30°C
LCD screen
Polarographic probe with 3m cable and screw-on cap membrane

SaleNo. 3

AZ-86021 Dissolved Oxygen Tester Water Quality Meter D.O Meter Temperature Meter | Can Measure pH Conductivity TDS Salinity by Using Different Probes | Multiple Parameters Water Tester AZ86021

Large LCD to display multiple parameters in turns: pH, Conductivity or TDS or Salinity, Dissolved oxygen, Temperature (by using different probes). Please note that the standard accessory only comes with D.O probe, If users want to measure pH, Conductivity, TDS or Salinity, users need to purchase pH or Cond. probe(s).
Displayed parameter is decided by probe type
Water proof function as IP67
Fast measuring of dissolved oxygen value
Accurate replaceable probes with anti-collision cap
Auto ranging for conductivity measurement (users need to purchase cond. probe to fulfill this function.)
Auto temperature compensation (ATC); 99 points memories w/recall function
Multiple points calibration: 3 points for pH, 1 point for D.O., 4 points for conductivity
Manually altitude and salinity compensation function for D.O. measurement
Temperature unit ℃/℉ is switchable; 1 hour auto power off; Excellent to use in fresh or sea water aqua farm

No. 4

YSI - 6050020 Pro20 Lab/Field Dissolved Oxygen/Temperature Meter, 0 to 50 mg/L, 0.1 mg/L, 0 to 20 mg/L, -5 to 55 degree C, 8-1/2" Length x 3-1/4" Width x 2-13/64" Depth

Handheld dissolved oxygen (DO) and temperature meter for lab or field use
One Touch Cal feature calibrates the meter within three seconds
Graphical, backlit display and glow-in-the-dark keypad
Takes a field cable and a polarographic or galvanic probe for field use, or a cable-probe assembly for lab use (cables and probes sold separately)
Impact-resistant and waterproof, rated IP67

No. 5

Digital Dissolved Oxygen Meter,Dissolved Oxygen Test Kit with 4.92 ft Probe Cable, DO Meter Oxygen Analyzer with Accessories,Aquarium Pond Water Test Kit 0.0-40.0 mg/L

Digital Dissolved Oxygen Meter Kit with 4.92ft Electrode Cable: GIDIGI dissolved oxygen tester with a 1.5 meters electrode cable. With this dissolved oxygen test kit, you can test the oxygen content in deeper water and avoid the problem that the electrode cannot touch the water due to distance. It is very convenient to carry and is very suitable for outdoor water quality measurement and environmental monitoring (lakes, rivers, large ponds and aquaculture).
DO Meter with mg/L and % Modes: The dissolved oxygen test kit with two modes: mg/L mode (dissolved oxygen content in water, 1mg/L=1ppm) and % mode (saturation percentage). The DO meter offers a broad measuring range for dissolved oxygen (0.0-40mg/L), dissolved oxygen saturation (0.0-300.0%), and temperature (0.1-40.0°C; 32.0-104.0°F).
Automatic Temperature Compensation: The GIDIGI dissolved oxygen test kit with ATC function, the test values are more stable. Easily obtain accurate oxygen content in the solution. Professional oxygen monitoring equipment is used in koi ponds, drinking water analysis, home beer and wine brewing, industrial systems, hydroponic nutrient, fish tank, sewage treatment, wastewater treatment, laboratories, education research and other fields.
Pond Water Test Kit with LCD Display: GIDIGI dissolved oxygen meter with digital backlight LCD display, which can easily obtain readings in dim environments, and has data lock function and temperature switching function (℉/℃).
Easy to Use and Calibrate: GIDIGI dissolved oxygen tester comes with detailed instructions and complete accessories (replaceable membrane cap*6, electrolyte*2 and zero oxygen water*1). No need to buy calibration solution, easily calibrate the tester. Simple operation, just put the tester electrode into the test solution to quickly obtain accurate oxygen test value. And you can easily get membrane cap and calibration solution by browsing GIDIGI store.

SaleNo. 6

Smart Dissolved Oxygen Meter, YINMIK DO Meter for Aquarium, Digital Dissolved Oxygen Tester with 9.84ft DO Probe Cable, Portable DO Tester for Aquaculture Wastewater Treatment Environmental Monitoring

[Home Portable Dissolved Oxygen Meter]: YINMIK dissolved oxygen tester is designed with compact size, which can be carried with you to test home aquarium and outdoor aquaculture at any time. Two modes [mg/L mode (dissolved oxygen content in water, 1mg/L=1ppm) and % mode (saturation percentage)] make DO water quality testing easier. Reliable dissolved oxygen test data helps you monitor the health of your beloved fish; Suitable dissolved oxygen content will increase the yield of aquaculture.
[Accurate Outdoor Dissolved Oxygen Water Quality Tester]: With a resolution of 0.1mg/L, the digital dissolved oxygen meter provides accurate & consistent DO content readings, which can help environmental monitors monitor the self-purification capacity of water and whether sewage meets the DO standards for discharge. The extended 9.84ft DO probe cable provides a more convenient testing method for outdoor monitoring. The LCD backlight display enables clear test readings in dim outdoor environment.
[Digital DO Test Kit for Hydroponics and Brewing]: When the dissolved oxygen concentration is 8-10 mg/L, the plant growth rate & nutrient accumulation efficiency are the highest. YINMIK dissolved oxygen meter can help hydroponics practitioners accurately control DO, shorten the growth cycle of hydroponic plants, and improve their nutritional value. In addition, for beer & wine brewers, this YK-9100 dissolved oxygen meter can help them maintain the high quality and unique flavor of beer and wine.
[Salinity & Altitude Compensation with YINMIK APP]: Through the YINMIK APP, manually input altitude & salt compensation, YINMIK smart DO meter provides more accurate dissolved oxygen content. And the DO meter is designed with ATC function to prevent temp changes from affecting accuracy of DO test. Moreover, the DO meter is seamlessly synchronized with the free iOS/Android APP, You can store 1,000 data through the APP to avoid errors in handwritten data; and set custom alarms for DO thresholds.
[Complete YINMIK Dissolved Oxygen Test Kit]: With zero oxygen water, electrolyte, replaceable oxygen permeable membrane & detailed instructions, YINMIK dissolved oxygen tester is suitable for users of all experience levels, whether you are a hydroponics, fish tank, brewing, aquarium enthusiast, or aquaculture, environmental monitoring, educational experiments. And, YINMIK provides a 365-day warranty service, and YINMIK team is online 24 hours a day, any problem will receive a solution in time.

No. 7

UIUZMAR Smart Dissolved Oxygen Meter Kit with Spare Components Electronic Portable DO Tester with Reinforced Polarographic Probe for Aquaculture Fish Tank Wastewater Treatment

[Accurate and Consistent Readings] UIUZMAR Dissolved Oxygen Meter using reinforced polarographic probe with a replaceable oxygen-permeable PTFE membrane cap can always give accurate and consistent readings. Automatic temperature compensation and manual input for salinity and barometric pressure compensation through app keep the excellent performance in different circumstance.
[Smart DO Analyzer with APP] Now you can use the DO analyzer more conveniently by the app. Connect the dissolved oxygen meter with your phone in mobile app to complete more complicate jobs like setup salinity and barometric pressure compensation. What’s more, you can also record, manage, and share your testing data with friends anytime.
[Easy for Use and Calibration] Easy calibration for saturated air (slope calibration) and zero-oxygen (zero calibration) with automatic identify program. Anyone even an amateur can complete the slope calibration easily before each use. It is recommended that zero calibration is required for first use, and slope calibration is required before each use. UIUZMAR also provide detail user manual and video about how to use and maintain the DO meter.
[Durable DO Tester with Spare Components] UIUZMAR provides 6 spare membrane caps for the long-term use, electrolytes and calibrations also comes with the package. Even though the spare components run out, there is no need to worry, go to the UIUZMAR Amazon Store to obtain more accessories.
[Wide Application] UIUZMAR dissolved oxygen meter is an excellent value option for field or bench use, which is popular with everyone from field biologists and educators to fish farmers and koi pond owners. Widely used in aquaculture, fish tank, koi pond, wastewater treatment, beer brewing, education, labs, also an economical, reliable, easy-to-use instrument preferred by people looking for lab level accuracy without the cost.

SaleNo. 8

Generic Dissolved Oxygen Meter, Digital Oxygen Test Kit Analyzer, DO Probe with ATC for Aquarium, Measurement Range: 0‑30mg/L 6 Replaceable Electrode Tips, 30ml Electrode Filling Fluid

Dissolved oxygen meter is engineered to provide precise oxygen level readings from 0 to 30mg/L, suitable for various water quality management applications
Dissolved oxygen meter is equipped with a highly sensitive probe to deliver accurate and reliable measurements, and is built-in with ATC to ensure effective operation under a 0-40°C environment
Dissolved oxygen meter is designed with a high-definition LCD backlight display, guaranteeing easily visible readings in any lighting condition
Digital oxygen test kit analyzer caters to a wide range of industries and applications such as freshwater aquaculture, marine aquaculture, swimming pools, labs, beverage factories, etc.
Digital oxygen test kit analyzer features a compact, pen-shaped design, making it lightweight and easy to carry

No. 9

Generic Dissolved Oxygen Meter, Dissolved Oxygen Test Kit with Pen Shaped Polarographic Probe, Portable DO Tester for Aquarium Aquaculture Water Test, Bluetooth App Control, DO Range 0.0‑30.0mg/L

Dissolved Oxygen Meter ranges 0-30mg/L for dissolved oxygen, 0-300% for saturation, and 32.0-104.0°F (0.1-40.0°C), equipped with temperature compensation, more accurate and stable
DO Analyzer supports mobile App control, offering real-time and intuitive data reading in multiple interfaces, allowing for setting, calibrating record, saving data, etc
Dissolved Oxygen Tester features a digital display with backlight to show real-time reading, clear at a single glance
DO Tester comes with a highly sensitive electrode probe of pen type, detachable, lightweight, easy to replace, also with 6pcs protective covers
Dissolved Oxygen Meter widely used in fresh water aquaculture, aquarium, marine aquaculture, swimming pool, lab, beverage factory, wastewater treatment, etc.

No. 10

Sper Scientific Waterproof Dissolved Oxygen Meter Pen 850045 - Accurate DO & Temperature Readings, IP65 Rated, Auto Temp Compensation - for Environmental Testing, Aquariums, Labs and Wastewater

ACCURATE TESTING: Measures dissolved oxygen (0–20 mg/L) and oxygen percentage in air (0–100%) with high precision. Ideal for environmental testing, labs, aquariums, fish hatcheries, and wastewater management.
WATERPROOF: Built to withstand tough conditions with IP65-rated waterproofing, ensuring reliability in wet environments like aquariums or fieldwork.
ADVANCED FEATURES: Polarographic probe with a built-in temperature sensor offers automatic temperature compensation (32–122°F / 0–50°C) for consistent accuracy in every reading.
EASY TO USE: Compact and portable with one-hand use, it features a clear display for simultaneous dissolved oxygen and temperature readings, plus data hold, max, and min memory recall.
COMPLETE SET: Comes complete with 2 spare probe heads, electrolyte solution, 4 AAA batteries, and a soft carrying case with a belt loo - perfect for professionals on the go.

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Last update on 2025-06-06 / Affiliate links / Images from Amazon Product Advertising API

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