Home > Chemical Detection > Technology > Sensors > Electrochemical Detection (EC)

Electrochemical (EC) detectors detect chemicals by measuring changes in current across an electrode pair. Many common EC detectors are used for detection of gas phase analytes.  In these instruments, a target gas contacts the electrode and causes an electrochemical reaction takes place, this produces a change in current which is the basis for analyte detection. A variety of EC sensors and detectors are available for identifying gases such as HS2, CO2, TIC/TIMs, explosives, and dozens of other chemicals. Most EC-based units are configured with sensors for specific gases. Many units incorporate multiple sensors into a single instrument.  Instruments with this configuration can detect multiple gases simultaneously. Most EC sensors are portable or handheld instruments.  The technology is mature with many manufacturers offering commercial instrumentation across a very broad price range of $1,000 to $20,000+.
Manufacturer
Airsense Analytics (8)
Alphasense (1)
American Gas & Chemical Company (1)
Analytical Technology, Inc. (1)
Armstrong Monitoring Corporation (1)
Bosworth Instruments (1)
Building Protection Systems, Inc. (2)
City Technologies (1)
Delphian Corporation (3)
Detcon, Inc. (2)
Digi-Key Corporation (6)
Draeger Safety, Inc. (11)
Eco Sensors (2)
Enmet Corporation (4)
Environics Oy (1)
GE Measurement and Control (1)
Grace Industries (1)
Honeywell Analytics (11)
Honeywell Sensing and Control (1)
Industrial Scientific Corporation (6)
International Sensor Technology (3)
Interscan Corporation (1)
IT Dr. Gambert GmbH (3)
KWJ Engineering (4)
Matheson Tri Gas (1)
Maxtec (3)
Membrapor AG (4)
Microsens SA (5)
MSA (11)
Nemoto B.V. (3)
Novatech Controls Pty Ltd (2)
PID Analyzers LLC (1)
Quest Technologies (3)
RAE Systems, Inc. (8)
RKI Instruments (17)
Schauenburg Flexadux Corporation (Headquarters) (1)
Scott Health & Safety (2)
Sensidyne LLP (2)
Sensorex (1)
SGX Sensortech (IS) Ltd (2)
Siemens Industry, Inc. (1)
Sierra Monitor Corporation (1)
Smiths Detection, Inc. (1)
SPEC Sensors (7)
Thermo Fisher Scientific, Inc. (1)
Turner Designs (1)
YSI, Inc. (2)
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Transportability
Pocket Size (74)
Handheld (64)
Person-Portable (7)
Benchtop/Fixed (11)
Availability
Commercially Available (132)
Commercially Available: 30 to 60 days for delivery (2)
Discontinued (19)
In Development (1)
Other (2)
Unit Cost
< $100 (10)
$100 - $500 (27)
$500 - $1,000 (15)
$1,000 - $5,000 (29)
$5,000 - $10,000 (5)
$10,000 - $20,000 (2)
$20,000 - $50,000 (3)
$50,000 - $100,000 (1)
N/A (64)
Sample Introduction
Solid (1)
Liquid (6)
Vapor/Gas (149)
Sensitivity / Detection Limit
% (31)
ppm (87)
ppb (3)
ng (4)
Ci (4)
Other (7)
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01 Series

01 Series

RKI Instruments

The 01 Series of personal gas monitors (GP-01, OX-01, CO-01, HS-01 and HS-01S) are designed for pers...

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03 Series

03 Series

RKI Instruments

The 03 Series monitors (GP-03, OX-03, CO-03, and HS-03) are personal single gas monitors designed fo...

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1732

1732

Novatech Controls Pty Ltd

The 1732 oxygen transmitter is suitable for gaseous oxygen measurements in a variety of processes. T...

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1737

1737

Novatech Controls Pty Ltd

The 1737 oxygen and carbon dioxide analyser is the third generation of MAP gas analysers from Novate...

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3ET1CO1500, 3ET1H2S100

3ET1CO1500, 3ET1H2S100

KWJ Engineering

Enabled by nanotechnology and sensor design, the low-power TTI T-series sensor with its 0.57 inch sq...

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4000 Series Portable Gas Analyazers

4000 Series Portable Gas Analyazers

Interscan Corporation

The 4000 Series portable gas analyzer is an electrochemical, voltametric sensor capable of sensitive...

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605-00007 MQ-7

605-00007 MQ-7

Digi-Key Corporation

Carbon monoxide sensor

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605-00008  MQ-2

605-00008 MQ-2

Digi-Key Corporation

Sensor detects LPG, Propane, Butane, Methane, Hydrogen gas, Alcohol.

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605-00009 MQ-5

605-00009 MQ-5

Digi-Key Corporation

Gas sensor that detects LPG, LNG, Natural Gas, Iso-butane, Propane, and Propane Town Gas.

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605-00011 MQ-3

605-00011 MQ-3

Digi-Key Corporation

High sensitivity to Alcohol, small sensitivity to Benzene. Most commonly used for Breathalyzer appli...

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6600V2

6600V2

YSI, Inc.

The YSI 6600 V2 data sonde measures conductivity (salinity), temperature, depth or level, pH/ORP, di...

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755 System

755 System

Delphian Corporation

The 755 is specifically for Hydrogen sulfide; however, it belongs to a class of sensors from Delphia...

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770 System

770 System

Delphian Corporation

The 770 is specifically for Sulfur Dioxide; however, it belongs to a class of sensors from Delphian ...

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795 System

795 System

Delphian Corporation

The 795 is specifically for Carbon Monoxide; however, it belongs to a class of sensors from Delphian...

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A Series Sensors

A Series Sensors

IT Dr. Gambert GmbH

Gas sensors designed for use in automotive exhaust gas analyzers. Oxygen measures 0-100%, Nitric Oxi...

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AD81

AD81

GE Measurement and Control

GE Sensing’s Gas Sensors use a thick film element made of a semiconducting oxide. Two sensing eleme...

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