Extech DO700 Dissolved Oxygen Kit

  • Measures 8 key water quality metrics
  • Stores 400 readings with timestamps
  • Includes pH, DO, mV and TDS probes
  • Waterproof IP57 with backlit display
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£720.00 (ex VAT)

£864.00 (inc VAT)

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In Stock - Express Delivery Available
  • Measures 8 key water quality metrics
  • Stores 400 readings with timestamps
  • Includes pH, DO, mV and TDS probes
  • Waterproof IP57 with backlit display
Free Shipping

Spend over £100 on any new goods order and receive automatic free shipping

Rewards

Points make purchases! For every £1 spent, earn back 1p that can be spent on any future new goods purchase

Our Price Promise

We offer a Price Match Promise! Find an equivalent tester for a cheaper price on a competitor site, and we’ll do our best to match it

Express Delivery & Calibration

Express Delivery is currently unavailable for customers wishing to add calibration to their New Goods order. For more information, visit our Delivery Information page. 

£720.00 (ex VAT)

£864.00 (inc VAT)

Earn 720 points

In Stock - Express Delivery Available
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Extech DO700 Dissolved Oxygen Kit

The Extech DO700 Dissolved Oxygen Kit is a comprehensive water quality meter designed for accurate, on-the-go analysis. Ideal for laboratory use and field testing, it delivers fast and consistent results across a wide range of environments. Thanks to its rugged design and waterproof rating, it can handle demanding conditions without compromising performance.

With the Extech DO700, users can measure eight essential parameters: dissolved oxygen, pH, mV, conductivity, TDS, salinity, resistivity and temperature. The device features automatic salinity and temperature compensation, while barometric pressure is manually adjustable. These features help ensure reliable readings and reduce user error.

Advanced Calibration and Display

This water quality tester supports easy pH setup and three-step calibration for better pH accuracy. It automatically detects eight measuring standards from the USA, Europe and China, making it very suitable for international use. A large backlit dual display provides clear viewing in any light.

Memory, Power and Portability

The Extech DO700 can store up to 400 labelled readings, including measurement values and temperature. It runs on two AA batteries and features auto power-off to preserve battery life. A durable carry case keeps all components safe and organised for transport.

Whether used in water treatment plants, riverside monitoring, or educational settings, the Extech DO700 offers dependable, high-quality results in a portable format.

Key Features

Measures oxygen in water, pH, mV, how well it carries current, TDS, salt level and resistance, and temperature

  • Automatically adjusts for salt level and temperature during DO testing
  • Manual air pressure setting for extra control
  • Three-step pH setup improves measurement accuracy
  • One-touch pH setup makes use easier
  • Detects 8 international current-carrying standards
  • Internal memory saves 400 readings with labels
  • Clear dual LCD screen with light for dark areas
  • Waterproof IP57 case for use in tough conditions
  • Auto shut-off helps save battery
  • Small, runs on batteries and easy to carry
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Extech DO700 Dissolved Oxygen Kit

The Extech DO700 Dissolved Oxygen Kit is a comprehensive water quality meter designed for accurate, on-the-go analysis. Ideal for laboratory use and field testing, it delivers fast and consistent results across a wide range of environments. Thanks to its rugged design and waterproof rating, it can handle demanding conditions without compromising performance.

With the Extech DO700, users can measure eight essential parameters: dissolved oxygen, pH, mV, conductivity, TDS, salinity, resistivity and temperature. The device features automatic salinity and temperature compensation, while barometric pressure is manually adjustable. These features help ensure reliable readings and reduce user error.

Advanced Calibration and Display

This water quality tester supports one-touch pH calibration and three-point calibration for enhanced pH precision. It automatically recognises eight conductivity standards from USA, Europe and China, making it highly adaptable for international applications. A large backlit dual display offers excellent visibility in any lighting.

Memory, Power and Portability

The Extech DO700 can store up to 400 labelled readings, including measurement values and temperature. It runs on two AA batteries and features auto power-off to preserve battery life. A durable carry case keeps all components safe and organised for transport.

Whether used in water treatment plants, riverside monitoring, or educational settings, the Extech DO700 offers dependable, high-quality results in a portable format.

Key Features
  • Measures dissolved oxygen, pH, mV, conductivity, TDS, salinity, resistivity and temperature
  • Automatically compensates for salinity and temperature during DO measurement
  • Manual barometric pressure adjustment for additional control
  • Three-point pH calibration improves measurement accuracy
  • One-touch pH calibration simplifies operation
  • Recognises 8 international conductivity standards
  • Internal memory stores 400 readings with data tags
  • Clear dual LCD display with backlight for low-light use
  • Waterproof IP57-rated housing for field durability
  • Auto power-off function extends battery life
  • Compact, battery-operated and easy to carry

 

Technical Specifications
ParameterSpecification
Dissolved Oxygen Concentration0 to 40.00 mg/L
Dissolved Oxygen Saturation0 to 200.0%
pH Range-2.00 to 19.99 pH
mV Range-1999 to +1999 mV
Conductivity Range0.00 to 199.9 mS
TDS Range0 to 100 g/L
Salinity Range0 to 100 ppt
Resistivity0 to 100 MΩ·cm
Temperature Range0 to 100°C (DO); 0 to 50°C (pH, mV)
Resolution0.01 mg/L, 0.1%, 0.01 pH, 1 mV, 0.01 µS, 0.1°C
Accuracy±0.02 pH; ±0.15 mV; ±1.5% FS; ±0.5°C
CalibrationpH: 3-point (4, 7, 10); Conductivity: 1-point
Temperature CompensationAutomatic (non-linear for <10 µS/cm)
Memory CapacityStores up to 400 labelled readings
DisplayDual backlit LCD
Power Supply2 x AA batteries
Dimensions120 x 65 x 31 mm
WeightMeter: 180 g; Kit: 1.7 kg
HousingWaterproof to IP57 standard
What’s Included
  • DO probe with cable
  • pH ORP temperature electrode
  • Conductivity cell
  • Calibration solutions
  • Batteries
  • Hard carry case

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