Top 10 Best Dissolved Oxygen Meters for Water Available Today

JPB-607A Handheld Dissolved Oxygen Meter is ideal for various applications such as aquaculture, biological reactions, environmental testing, water treatment, wastewater management, and wine production.

Advantages:

• LCD display with optional blue backlight
• Automatic temperature compensation and quick response
• Supports zero oxygen and full-scale calibration
• Easy-to-use handheld design
• Equipped with DO-958-S dissolved oxygen sensor

Purchase link: https://shoponlinegiagoc.com/san-pham/may-do-oxy-hoa-tan-cam-tay-jpb-607a/

HH 8403 Dissolved Oxygen Meter (DO) is designed and manufactured by AZ Instrument, a well-known producer of environmental measurement tools. The HH 8403 is widely used for measuring dissolved oxygen in liquids and is commonly applied in water quality testing.

Advantages:

• Large LCD display showing both DO and temperature values
• Stability indicators
• Automatic temperature compensation
• Easy calibration to 100% DO value
• Automatic power-off timer (20/30/40/60/90/120 minutes)
• Compatible with most cost-effective Clark-type oxygen electrodes
• Data hold function
• Supports salinity and atmospheric pressure readings
• Real-time clock for all stored data
• Accurate dissolved oxygen readings

Product purchase link: http://maydoluong.vn/may-do-oxy-hoa-tan-do-do-man-nhiet-do-hh-8403-955553.html

Milwaukee MW600 Handheld Digital Dissolved Oxygen Meter is a versatile instrument suitable for a variety of industries, including laboratories, aquaculture environments, and more.

Advantages:

• Lightweight and portable, making it easy to carry and use on the go.
• Equipped with a PTFE membrane polarographic sensor and a protective cap for better storage.
• The probe is conveniently connected to the meter via a 3-meter cable, offering flexibility for various measurements.
• The Milwaukee MW600 features automatic temperature compensation, ensuring more accurate readings.
• Calibration is done manually at two points: slope and zero, for ease of use.

Product purchase link: https://emin.vn/milwaukeemw600-may-do-do-dien-tu-cam-tay-milwaukee-mw600-0-0-19-9-mg-l-3368/pr.html

DO110-K Handheld Dissolved Oxygen Meter is a high-precision measurement tool designed with a durable polycarbonate body, a large easy-to-read display, and various data-processing features for dissolved oxygen measurement.

Advantages:

• Measures dissolved oxygen (DO) in mg/L and % saturation
• Resolution of 0.01 mg/L or 0.1%
• Compensates for salinity, temperature, and atmospheric pressure
• Internal memory stores up to 100 data points
• Automatic power-off feature (programmable: 1 to 30 minutes)
• Automatic data hold / stable measurement mode
• Integrated electrode holder allows two electrodes to be attached on both sides of the meter
• Large 52mm x 64mm LCD screen for clear results
• IP67-rated enclosure: waterproof (up to 30 minutes at 1 meter depth) and dustproof
• Operates with 2 AAA batteries, Ni-MH rechargeable batteries, or a power adapter
• Comes in a shock-resistant case for added protection
• DO110 by Horiba also measures temperature in samples

Product purchase link: https://sieuthidienmaychinhhang.vn/vi/san-pham/may-do-nong-do-oxy-hoa-tan-do-cam-tay-horiba-do110-k-14233.html

Horiba is a renowned brand in the field of laboratory equipment, known for manufacturing advanced fluorescence analysis devices, particle analyzers, forensic science tools, and more. Through its research, development, application, and global service network, Horiba Scientific has provided researchers with the most effective products and solutions. Among these is the DO220-K Handheld Dissolved Oxygen Meter.

Advantages:

• Includes temperature measurement in °F, expanding the range of result references
• Features data storage with timestamps, making it easier for users to access and compare results
• Real-time monitoring functionality added
• Replaces the RS232 connection port with a more convenient and widely used USB port
• Redesigned in a sleek black color, replacing the old white that attracted dust
• Made from soft rubber for a firm grip and better shock resistance

Product purchase link: https://metrotech.vn/may-do-oxy-hoa-tan-horiba-do220-k/

The YSI Pro20 Dissolved Oxygen Meter is a durable, user-friendly device designed for measuring dissolved oxygen. It is versatile for both laboratory and field use and can be easily transported in seconds.

With replaceable sensors and cables, the Pro20 also features a convenient One Touch Cal function, making it incredibly user-friendly. Built to military spec (Mil-spec) standards, it has an IP-67 waterproof rating and rubber-molded casing that withstands impact from a drop of up to 1 meter, ensuring long-lasting performance even under harsh conditions. The Pro20's impressive features significantly reduce the total cost of ownership over its product life.

Its quick response time, combined with the optical or electrochemical sensors, allows for fast sampling. The long lifespan of the optical sensor reduces maintenance costs and ensures consistent, high-quality results. The electrochemical sensor enables sampling without waiting for a warm-up period. Both sensors provide precise measurements with excellent data quality.

Advantages:

• Rugged, intuitive design
• Galvanic and polarographic DO sensors, compatible with field probe cables
• Self-stirring BOD probe for use in testing
• Waterproof and impact-resistant casing
• Replaceable cables and sensors for easy maintenance
• One Touch Cal for DO calibration in just 3 seconds
• Fast response time
• Memory stores up to 50 data points

Product purchase link: https://vietnguyenco.vn/san-pham/may-do-oxy-hoa-tan-pro20/

The DO 450 Dissolved Oxygen Meter is a portable device from Eutech, Singapore, designed for measuring dissolved oxygen in liquids. Compact and easy to use, this meter is suitable for laboratory and field applications. It's commonly used in aquaculture, fish and shrimp farming, aquatic ecosystems, and wastewater treatment environments.

Features:

• Optical probe with no electrolyte, eliminating the need to replace membranes and salt buildup from refilling solutions.
• Water and dust-resistant design with an IP67 rating for durability.
• Large customizable display with a backlight that shows temperature readings.
• Switch between saturation percentage and dissolved oxygen concentration in mg/L (ppm) with a press of a button.
• Calibration alarm to notify when recalibration is needed.
• Visible reminder for calibration, ensuring proper monitoring.
• Barometric pressure guidance and salinity adjustment – Choose between ºC or ºF units.
• Customizable units for your specific application.
• Ready indicator, manual or automatic hold feature, and optional auto-off functionality.
• Stores up to 500 data sets – Easy USB or RS232 output with optional data cables.
• Real-time timestamp for data storage and calibration records.
• Complies with GLP (Good Laboratory Practice) standards.
• Long battery life of 500 hours or optional universal AC adapter.
• Integrated stand with wall mount for easy placement and use.

Product Purchase Link: https://www.rongtien.com/may-do-oxy-hoa-tan-do-450

The HI98193 Dissolved Oxygen Meter is a durable, handheld device used for measuring dissolved oxygen (DO). With professional-grade waterproofing (IP67 standard), it can measure DO, BOD, temperature, and barometric pressure. This meter comes complete with accessories for DO measurement and is housed in a sturdy carrying case.

Features:

• The HI98193 comes with the HI764073 dissolved oxygen electrode, which integrates a temperature sensor for automatic temperature compensation.
• Stores up to 400 data points, which can be transferred to a computer via USB cable along with associated GLP data.
• The LCD screen with a backlight ensures visibility in low-light conditions.
• Quick DIN connector for easy, tangle-free electrode connection.
• USB connectivity for direct data transfer to a computer via USB cable.

Reference Link: https://sieuthihaiminh.vn/may-do-dobod-hi98193.html

The HI9147-04 Dissolved Oxygen Meter from Hanna is designed for accurate dissolved oxygen measurements even in challenging environments. The meter comes with a galvanic probe, HDPE membrane, electrode filling solution, and a robust carrying case.

Features:

• LCD Display: The HI9147 features a backlit LCD screen for easy reading in low-light conditions.
• High Durability: With an affordable price and high durability, this meter is ideal for field use.
• Easy-to-Replace Membrane: The HDPE membrane cap features a screw-on design that can be quickly replaced, typically every month, and removed when not in use.
• Galvanic Electrode: The included HI76409 probe is a standard galvanic dissolved oxygen sensor, designed for both handheld and bench-top meters. Made from durable ABS plastic, it includes a built-in temperature sensor for temperature compensation. The probe is compatible with Hanna’s PTFE HI76409A/P membrane. The membrane separates the platinum cathode and silver anode from the sample water. Oxygen diffuses through the membrane and interacts with the galvanic system to produce an electrical current proportional to oxygen concentration. Each membrane cap is filled with the HI7042 electrolyte solution and screwed onto the probe.
• One-Point Calibration: Calibration is done at 100% saturation, performed in air.
• Protective Electrode Cover: The meter comes with a protective cover for the electrode, preventing damage during field measurements, such as in aquaculture ponds.
• Automatic Temperature, Altitude, and Salinity Compensation: The HI9147 allows automatic compensation for altitude up to 4000 meters with a 100-meter resolution. Salinity compensation is adjustable from 0 to 80 g/L (ppt) with 1 g/L resolution, enabling accurate DO measurements in brackish and seawater.

Product Reference Link: https://maydochuyendung.com/may-kiem-tra-nuoc/chi-tiet/May-o-DO-cm-tay-Hanna-HI9147-04

The HI9142 Dissolved Oxygen Meter by Hanna is a compact and reliable water quality meter designed for use in challenging environments. This portable device provides accurate dissolved oxygen (DO) measurements, making it an essential tool for fieldwork and environmental monitoring.

Key Features:

• The HI9142 is a handheld DO meter with a rugged, waterproof design that ensures high durability. It comes with a high-quality carrying case to protect the meter during outdoor use.
• The meter uses a polarographic probe with a screw-on polytetrafluoroethylene (PTFE) membrane that can be easily replaced by filling it with the HI7041 electrolyte solution and screwing it into the probe.
• Manual calibration at 100% saturation and automatic calibration in oxygen-free solution.
• Automatic temperature compensation: The meter automatically adjusts the measurements based on temperature, with high accuracy, thanks to the built-in temperature sensor housed in the stainless steel casing.

Product Link: https://sieuthihaiminh.vn/may-do-oxy-hoa-tan-cam-tay-hi9142.html