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Dissolved Oxygen Sensor Market Size, Share and Forecast 2026-2036

The global dissolved oxygen sensor market is worth USD 663 mn in 2026 and is forecast to reach USD 1.3 bn by 2036, growing at a 7.0% CAGR. China is the largest country market and Optical (luminescence) is the largest by technology segment.

USD 663 mnMarket size 2026
USD 1.3 bnForecast 2036
7.0%CAGR 2026-2036
ChinaLargest country

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5 segmentation views25 countries2026 to 2036 yearly forecast

Market overview

The global dissolved oxygen sensor market is worth USD 663 mn in 2026 and is forecast to reach USD 1.3 bn by 2036, growing at a 7.0% CAGR. China is the largest country market and Optical (luminescence) is the largest by technology segment.

ScopeOptical and electrochemical sensors that measure dissolved oxygen in water and process liquids, sold for wastewater, drinking water, aquaculture, food and beverage, power and environmental monitoring.
IndustryProcess Automation
Value 2025USD 620 mn
Value 2026USD 663 mn
Value 2036USD 1.3 bn
CAGR 2026-20367.0%
Volume 2026953 thousand units
Volume 20361,698 thousand units
Average price 2026USD 696 per unit
Report priceStarts from USD 1,999
PublishedNovember 2026

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Dissolved Oxygen Sensor market size and forecast, 2026-2036

Exhibit 1The global dissolved oxygen sensor market is forecast to grow from USD 663 mn in 2026 to USD 1.3 bn by 2036, a rise of 97%Global market value in USD: 2025 base year, 2026 estimate and forecast to 2036. CAGR 2026 to 2036: 7.0%
Dissolved Oxygen Sensor market value, 2025 to 2036Market value by year. 2025: USD 620.0 mn; 2026: USD 663.4 mn; 2027: USD 709.8 mn; 2028: USD 759.5 mn; 2029: USD 812.7 mn; 2030: USD 869.6 mn; 2031: USD 930.5 mn; 2032: USD 995.6 mn; 2033: USD 1.07 bn; 2034: USD 1.14 bn; 2035: USD 1.22 bn; 2036: USD 1.31 bn. Compound annual growth rate 2026 to 2036: 7.0%.2025663.4 mn2026930.5 mn20311.31 bn20367.0% CAGR

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

YearMarket value
2026USD 663.4 mn
2027USD 709.8 mn
2028USD 759.5 mn
2029USD 812.7 mn
2030USD 869.6 mn
2031USD 930.5 mn
2032USD 995.6 mn
2033USD 1.07 bn
2034USD 1.14 bn
2035USD 1.22 bn
2036USD 1.31 bn

Dissolved Oxygen Sensor market segmentation

By technology

Exhibit 2Optical (luminescence) is the largest segment by technology, with 48.0% of 2026 revenueEstimated share of 2026 global revenue, by technology
Dissolved Oxygen Sensor market share by technology, 2026Share of 2026 revenue by technology. Optical (luminescence): 48.0%; Polarographic electrochemical: 30.0%; Galvanic electrochemical: 22.0%.Optical (luminescence)48.0%Polarographic electrochemical30.0%Galvanic electrochemical22.0%

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
Optical (luminescence)48.0%56.7%USD 318 mn8.8%
Galvanic electrochemical22.0%17.8%USD 146 mn4.8%
Polarographic electrochemical30.0%25.5%USD 199 mn5.3%

By end use

Exhibit 3Wastewater treatment adds the most revenue by end use, growing from USD 199 mn in 2026 to USD 378 mn by 2036Estimated revenue in USD by end use, 2026 and 2036 forecast
Dissolved Oxygen Sensor market by end use, 2026 and 2036Revenue by end use in 2026 and 2036. Wastewater treatment: USD 199 mn in 2026, USD 378 mn in 2036, change +90%; Environmental monitoring: USD 119 mn in 2026, USD 249 mn in 2036, change +108%; Power and industrial: USD 106 mn in 2026, USD 192 mn in 2036, change +81%; Aquaculture: USD 80 mn in 2026, USD 190 mn in 2036, change +139%; Drinking water: USD 93 mn in 2026, USD 176 mn in 2036, change +90%; Food and beverage: USD 66 mn in 2026, USD 120 mn in 2036, change +81%.20262036 forecastChangeWastewater treatment+90%199 mn378 mnEnvironmental monitoring+108%119 mn249 mnPower and industrial+81%106 mn192 mnAquaculture+139%80 mn190 mnDrinking water+90%93 mn176 mnFood and beverage+81%66 mn120 mn

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
Wastewater treatment30.0%28.9%USD 199 mn6.6%
Drinking water14.0%13.5%USD 93 mn6.6%
Aquaculture12.0%14.6%USD 80 mn9.1%
Food and beverage10.0%9.2%USD 66 mn6.1%
Environmental monitoring18.0%19.1%USD 119 mn7.6%
Power and industrial16.0%14.7%USD 106 mn6.1%

By signal type

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
Analogue mV and mA38.0%27.0%USD 252 mn3.4%
Digital with built-in electronics44.0%48.0%USD 292 mn7.9%
Wireless and IoT18.0%25.0%USD 119 mn10.6%

By measuring range

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
Standard (0 to 20 mg/L)58.0%54.0%USD 385 mn6.2%
Trace (below 1 mg/L)20.0%20.0%USD 133 mn7.0%
Wide range and gas phase22.0%26.0%USD 146 mn8.8%

By mounting

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
Submersible and immersion42.0%38.0%USD 279 mn5.9%
Flow-through inline28.0%27.0%USD 186 mn6.6%
Portable probes30.0%35.0%USD 199 mn8.7%

Top 25 countries for dissolved oxygen sensor by revenue

Countries are ranked by revenue earned from sales in the country, not by where the product is made. The ten largest hold 77.5% of 2026 revenue and the 25 countries below together hold 94.1%.

Exhibit 4China is the largest country market at USD 159 mn in 2026, and the three largest countries hold 51.0% of global revenueEstimated 2026 revenue in USD and share of the global market, ten largest countries
Dissolved Oxygen Sensor market, ten largest countries in 2026Ten largest countries by 2026 revenue. China: USD 159 mn, 24.0%; United States: USD 133 mn, 20.0%; Germany: USD 46 mn, 7.0%; Japan: USD 40 mn, 6.0%; United Kingdom: USD 27 mn, 4.0%; India: USD 27 mn, 4.0%; France: USD 23 mn, 3.5%; South Korea: USD 23 mn, 3.5%; Italy: USD 20 mn, 3.0%; Canada: USD 17 mn, 2.5%.China159 mn 24.0%United States133 mn 20.0%Germany46 mn 7.0%Japan40 mn 6.0%United Kingdom27 mn 4.0%India27 mn 4.0%France23 mn 3.5%South Korea23 mn 3.5%Italy20 mn 3.0%Canada17 mn 2.5%

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

#CountryValue 2026Share 2026Value 2036CAGR 2026-36
1ChinaUSD 159 mn24.0%USD 369 mn8.8%
2United StatesUSD 133 mn20.0%USD 232 mn5.8%
3GermanyUSD 46 mn7.0%USD 77 mn5.2%
4JapanUSD 40 mn6.0%USD 64 mn4.8%
5United KingdomUSD 27 mn4.0%USD 44 mn5.3%
6IndiaUSD 27 mn4.0%USD 70 mn10.3%
7FranceUSD 23 mn3.5%USD 39 mn5.4%
8South KoreaUSD 23 mn3.5%USD 47 mn7.3%
9ItalyUSD 20 mn3.0%USD 33 mn5.1%
10CanadaUSD 17 mn2.5%USD 29 mn5.6%
11BrazilUSD 16 mn2.5%USD 36 mn8.2%
12NorwayUSD 14 mn2.1%USD 27 mn6.8%
13SpainUSD 12 mn1.9%USD 24 mn6.8%
14AustraliaUSD 11 mn1.6%USD 21 mn6.7%
15NetherlandsUSD 9.4 mn1.4%USD 18 mn6.8%
16ChileUSD 8.2 mn1.2%USD 18 mn8.2%
17VietnamUSD 7.1 mn1.1%USD 16 mn8.2%
18TaiwanUSD 6.2 mn0.9%USD 12 mn6.8%
19MexicoUSD 5.4 mn0.8%USD 12 mn8.1%
20ThailandUSD 4.7 mn0.7%USD 10 mn8.2%
21IndonesiaUSD 4.0 mn0.6%USD 8.9 mn8.2%
22DenmarkUSD 3.5 mn0.5%USD 6.8 mn6.8%
23RussiaUSD 3.0 mn0.5%USD 5.9 mn6.8%
24TurkeyUSD 2.6 mn0.4%USD 5.9 mn8.3%
25SingaporeUSD 2.3 mn0.3%USD 4.4 mn6.7%
Rest of worldUSD 39 mn5.9%USD 75 mn6.7%
Exhibit 5China and United States account for 48% of the USD 642 mn the market is forecast to add by 2036Forecast revenue added between 2026 and 2036 by country, in USD
Dissolved Oxygen Sensor market, where the growth to 2036 comes fromRevenue added between 2026 and 2036. Market value 2026: USD 663 mn. China: +USD 210 mn; United States: +USD 100 mn; India: +USD 44 mn; Germany: +USD 31 mn; Japan: +USD 24 mn; 20 other countries: +USD 198 mn; Rest of world: +USD 36 mn. Market value 2036: USD 1.3 bn.Market value 2026663 mnChina+210 mnUnited States+100 mnIndia+44 mnGermany+31 mnJapan+24 mn20 other countries+198 mnRest of world+36 mnMarket value 20361.3 bn

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

Competitive landscape

Group 1: Global leaders

  • Hach
  • Endress+Hauser
  • Mettler Toledo
  • Xylem
  • Thermo Fisher Scientific
  • Horiba

Group 2: Regional and specialist players

  • Hamilton
  • Yokogawa
  • Emerson
  • In-Situ
  • JUMO
  • Knick Elektronische Messgeraete
  • Hanna Instruments

Group 3: Emerging and niche players

  • PreSens
  • PyroScience
  • Atlas Scientific
  • Aqualabo
  • Pyxis Lab
  • Vernier Software

Research methodology

Every figure on this page comes from the research framework that we apply to all of the markets we cover. The 2025 base for the dissolved oxygen sensor market is built from the volume sold and the price that buyers pay, and is cross-checked against the size of the wider industry the market belongs to. Where a market can be sized in more than one way, the routes are compared before a figure is set.

The forecast runs year by year from the 2025 base to 2036. Growth in each year reflects demand from the industries that buy the product, adoption of new technology, pricing, regulation and replacement cycles. Volume and price are modelled together, so revenue in each year equals volume multiplied by average price. The 2026 to 2036 compound annual growth rate of 7.0% is calculated from the resulting values.

The market is divided by technology, by end use, by signal type, by measuring range, by mounting. The 25 largest countries are ranked by revenue earned from sales to buyers in each country, not by where the product is made. Segment values and country values add up to the market total in every year, and every report is checked for consistency before it is published.

Companies are placed in three groups: global leaders, regional and specialist players, and emerging and niche players. The groups describe how companies compete in the market. They are not a ranking and they are not market shares.

Our analysts also carry out primary research. Customized reports add interviews with key opinion leaders, such as senior executives, technical specialists and buyers, to test the assumptions behind the numbers for the question being asked.

Read the full research methodology

Frequently asked questions

How big is the dissolved oxygen sensor market?

The global dissolved oxygen sensor market is estimated at USD 620 mn in 2025 and USD 663 mn in 2026.

How fast will the dissolved oxygen sensor market grow?

It is forecast to reach USD 1.3 bn by 2036, a compound annual growth rate of 7.0% from 2026, an increase of USD 642 mn.

Which country is the largest market for dissolved oxygen sensor?

China is the largest market by revenue at USD 159 mn in 2026, 24.0% of the global total. The three largest countries together hold 51.0%.

Which country is growing fastest?

Among the ten largest markets, India is growing fastest at 10.3% a year from 2026 to 2036.

Which dissolved oxygen sensor segment is largest?

In the by technology split, Optical (luminescence) is the largest segment with 48.0% of 2026 revenue.

Who are the leading dissolved oxygen sensor companies?

Global leaders include Hach, Endress+Hauser, Mettler Toledo, Xylem.

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