FEATURES

	Low cost
	Shock proof
	Quick response
	High sensitivity
	Large output signal
	Low power consumption
	High resistance to poisoning
	Good reliability and long life

Application

Model

Target gas/ detection range

Features

·      Pre-sorted sensors do not need pre-calibration

·       Low sensitivity to LP gas

·      Pre-sorted sensors do not need pre-calibration

·       Low sensitivity to interfering gases

TGS 203

·       High sensitivity and selectivity to CO₂

·       Microprocessor and hybrid IC available

TGS2620

·       High sensitivity to alcohol and organic solvents

TGS2600

TGS 2180

Microwave Ovens/Water Vapor

·       High sensitive detection of contaminants in air with microprocessors

·       Pre-calibrated sensor modules available

TGS2602

Air contaminants and odour

·       High sensitivity to VOCs and odorous gases

·       High sensitivity to gaseous air contaminants

TGS 2180

·      High sensitivity to water vapour during cooking process

Automobile

TGS 2104

TGS 2201

TGS 2106

Gasoline exhaust

Diesel exhaust

Air Quality for NOx

·       For automatic ventilation control in  automobile

When sensor is heated to a high temperature, e.g.. 400°C, without the presence of oxygen, free electrons flow easily through the grain boundaries of the tin dioxide (SnO2-X) particles. In clear air, oxygen, which traps free electrons by its electron affinity, is adsorbed on to the tin dioxide particle surface forming a potential barrier in the grain boundaries. This potential barrier (eVs in air) restricts the flow of electrons, causing the electric resistance to increase (Fig. 1-1).                                    

When the sensor is exposed to an atmosphere containing reducing gases, e.g. combustible gases, CO, etc, the tin dioxide surface adsorbs these gas molecules and causes oxidation (Fig. 1-2). This lowers the potential barrier, allowing electrons to flow more easily, thereby reducing the electrical resistance (Fig. 1-3). Reaction between gases and surface oxygen will vary depending upon the sensor element's temperature and the activity of sensor materials.

CATEGORY

DOMESTIC FIELD

COMMERCIAL/ INDUSTRIAL FIELDS

Combustible gases

- Methane

- Propane

- CNG  

- Others

·        Gas alarms for homes, recreational vehicles, boats

·        Gas detection systems for commercial buildings, industrial plants, onshore and offshore gas and oil platforms, petrochemicals

·        Portable gas detectors

Toxic gases

- Carbon monoxide

- Ammonia

- Hydrogen

 - Sulphide

·        CO detectors for homes, recreational for homes, recreational vehicles, boats, combustion appliances

·        Fire alarms

• CO monitoring systems for car parks

• Fire detection systems

• Ammonia leak detection in refrigerators

• Ammonia detection for agricultural field

• Gas detection systems in industrial plants

• Portable detectors

Alcohol

·        Breath alcohol checkers

·        Breath alcohol checkers for professionals

Solvent vapor

·        Solvent detection for factories, dry cleaning industry and semiconductor industry.

Halcarbon gases

(CFCs, HCFCs, etc)

·        Halocarbon detection for refrigerators, air conditioners, cleaning processes for electrical components, etc

Odor detection

- Sulfide

- Amine

·        Mouth odour checkers

·        Odor detection in refrigerators

·        Odour monitors for dentists

·        Odour measuring systems for the food industry

Others - Oxygen

            -CO₂                -Humidity

·        Oxygen monitors

·        Air quality control

·        Air conditioner

·        Oxygen detectors

·        Carbon dioxide monitor

·        Office air conditioning