Datasheet and Manual Download Page

Low-cost Electrochemical Toxic Gas Sensors for

Residential and Light Commercial Applications

NAP-505

Our flagship Low-Cost 3-Electrode

Carbon monoxide (CO) sensor, 0-1000ppm

NAP-508

Low-Cost 3-Electrode Carbon monoxide (CO) sensor, 0-1000ppm, 10 Year Warranted Lifetime

NAP-550

Low-Cost Nitrogen Dioxide (NO2) sensor, 0-30ppm, Ideal for Car-Park Monitoring Systems

NAP-520

Low-cost Hydrogen Sulphide (H2S)

Gas Sensor, 0-100ppm

Low-cost Catalytic Flammable (Explosive) Gas Sensors

for Residential and Light Commercial Applications

NAP-55A

Standard low-cost Gas Sensor, For General Purpose use - all flammable Gases, 0-50%LEL

NAP-50A

As NAP-55A, but optimised for Methane / Natural Gas - low cross sensitivity to Alcohol vapours - complies with EN50194 Standard

NAP-66A

As NAP-55A, but optimised to detect Butane, Propane, LPG. 0-50% LEL

NAP-56A

Similar to NAP-55A, but mounted in a metal and phenolic resin header to allow a wider working temperature range (-40 to +70 deg C)

NAP-67A

Similar to NAP-66A, but mounted in a metal and phenolic resin header to allow a wider working temperature range (-40 to +70 deg C)

Catalytic Pellistor Flammable (Explosive) Gas Sensors

For Industrial Applications

NCP-180S-7S

Our highest performance Pellistor -  for the most challenging applications. Single header, 2.5V - 180mA operation.

NCP-180S-6S

Our standard, most popular single header pellistor gas sensor for industrial applications. 2.5V - 180mA operation.

NCP-300

Twin Header Pellistor mounted on two

TO4 Glass-metal headers. 2V, 300mA operation

NCP-170

Twin Header Pellistor mounted on two

TO4 Glass-metal headers. 2V, 175mA operation

NCP-180

Twin Header Pellistor mounted on two

TO4 Glass-metal headers. 2.5V, 180mA operation

NCP-180S

As NCP-180 but mounted on a single lower cost header. 0-50% LEL, 2.5V, 180mA operation

NCP-170S-H

As NCP-170 but mounted on a single lower cost header. -20 to 150°C, 2.0V, 175mA operation

NCP-300S

As NCP-300 but mounted on a single lower cost header. 0-50% LEL, 2.0V, 300mA operation

NCP-180-A

Special Twin header sensor optimised for the detection of Acetylene. 2V, 145mA operation

NCH-180

ATEX ad IEC Certified Explosion proof Flammable Gas Detection head. 2.5V, 180mA operation

Electrochemical Toxic Gas Sensors

for Industrial Safety Applications

NE4-CO

3-Electrode Carbon Monoxide CO sensor. 70nA/ppm, Standard range 0-1000ppm

NE4-CO-SI

Lower cost version of the NE4-CO, for cost sensitive applications such as Car-Parks. 50nA/ppm, 0-1000ppm

NE7-CO

32mm format standard Carbon monoxide CO sensor. 100 nA/ppm, Range 0-1000ppm

NE4-H2S-100

3-Electrode Hydrogen Sulphide H2S Sensor. 700nA/ppm, Standard Range 0-100ppm

NE4-H2S-200

3-Electrode Hydrogen Sulphide H2S Sensor. 500nA/ppm, Extended Range 0-200ppm

NE4-H2S-500

3-Electrode Hydrogen Sulphide H2S Sensor. 200nA/ppm, Special High Range 0-500ppm

NE4-HCHO-S

3-Electrode Formaldehyde CH2O Sensor. 500nA/ppm, Standard Range 0-10ppm, resolves down to 0.02 ppm

NE4-NO2

3-Electode Nitrogen Dioxide NO2 Sensor. 200nA/ppm, Standard Range 0-20ppm

NE4-NH3

3-Electrode Ammonia NH3 Sensor. 40nA/ppm,

Standard Range 0-100ppm

NE4-NH3-1000

3-Electrode Ammonia NH3 Sensor. 8nA/ppm,

Extended Range 0-1000ppm

NE4-NH3-5000

3-Electrode Ammonia NH3 Sensor. 4nA/ppm,

Extended Range 0-5000ppm

NE4-NO

3-Electrode Nitric Oxide NO Sensor. 400nA/ppm, Standard Range 0-250ppm.

NE4-CL2

3-electrode Chlorine Cl2 sensor. 600nA/ppm, Standard Range 0-10ppm

Gas Sensors for Special Applications

NAP-78SU

Special Gas Sensor for continuous monitoring for Incomplete combustion in Water Heating Appliances (Biolers/Furnaces)

NCP-180P

Special Gas Sensor for the monitoring of Flammable gas attacks on ATM machines (Cash Dispensers)

NAP-523

Special Gas Sensor for monitoring of low levels of H2S in Medical Breath Testing instruments

NE7-CO-H

Special 4- Electrode Carbon monoxide sensor with zero cross-sensitivity to Hydrogen.

Range 0-1,000ppm

NE7-CO-H10000

Special 4- Electrode Carbon monoxide sensor with zero cross-sensitivity to Hydrogen.

Special High Range 0-10,000ppm

Application Notes:

PELLISTOR POISONING

Explains the mechanisms by which some chemicals cause poisoning of Catalytic Gas Sensors, lists the common situations and chemicals which can poison pellistors, and offers advice on how to keep these problems to a minimum.

HYDROGEN and AMMONIA

Explains the use of Catalytic Gas Sensors (pellistors) for monitoring low levels of Ammonia or Hydrogen, and how to obtain the very best performance when using pellistors to detect and monitor these gases.