Gas concentration sensor

Gas concentration sensors detect gas molecules through electrochemical, infrared, or semiconductor methods, converting the concentration into an electrical signal output. They are used in fields such as environmental monitoring, industrial safety, and process control to reflect real-time changes in gas content.
Selection
Selection should consider the types of gases to be detected, the measurement range, and accuracy requirements. Pay attention to response time and stability. Match the output signal type based on environmental temperature and humidity conditions, and refer to service life and maintenance costs.

Terms

Standards

Instruments

Using Semiconductor Sensor, Response Time T90 is less than 10 seconds, detecting a variety of combustible gases, range 0~ 50% LEL, with sound and light alarm and LED large screen display.

$ 141.00

250Ml Encasement Specification for Ammonia Gas Sensitive and Ammonium Ion Composite ElectRode, provides routine concentration adjustment for measurement accuracy and Stability.

$ 127.00

High-precision Sensor is used to detect PM2.5 concentration, Response Time is instantaneous, Sensitivity can be adjusted to 5PPM, with sound and light alarm and automatic warm-up function, continuous work for 5 hours.

$ 157.00

Detection of oxygen concentration 0~ 25% range, resolution of 0.1%, Response Time ≤ 15 seconds, Portable design, suitable for a variety of environment monitoring needs.

$ 162.00

Detect NH3 gas, range 0~ 100ppm, resolution 0.1ppm, Response Time T90 ≤ 120s, support sound and light alarm, Operating temperature -10~ 50 ℃, Working time for more than 60 hours, Portable design weighs only 170 grams.

$ 328.00

Using Industrial Sensor, Response Time is less than 30 seconds, accuracy +/- 3% FS, with explosion-proof structure and multi-Gas detection ability, to ensure stable and reliable gas concentration monitoring.

$ 251.00

Electrochemical sensor technology, detection accuracy +/- 2% F. S, Response Time less than 10 seconds. With Intrinsic Safety (IS) design, support RS485 and 4-20mA dual output, equipped with 2.5 inch color screen display real-time concentration, Temperature Humidity paraMeters.

$ 630.00

It can detect halogen gas leaks of less than 0.5 ounces per year, with an instantaneous Response Time and a Warm-Up Time of less than 90 seconds. It features automatic warm-up and battery protection, and a portable design weighing only 480 grams.

$ 154.00

Semiconductor Sensor to detect halogen gas leaks of less than 0.5 oz/year, Response Time ≤ 1 second, Sensitivity adjustable, Portable design weighing 250g, up to 9 hours of operation.

$ 109.00

Using semiconductor Sensor technology, the detection sensitivity can be adjusted to 50PPM methane, Response Time ≤ 1 second, Warm-Up Time is less than 110 seconds, support 9 hours of continuous work, with LED light alarm and low power indication function.

$ 99.00

Using catalytic combustion Sensor, range 0~ 100% LEL adjustable, with infrared remote control debugging and 4~ 20mA output, support alarm record query and automatic temperature compensation, suitable for hazardous environment.

$ 152.00

Imported Electrochemical sensor, detection accuracy ≤ +/- 1%, Response Time ≤ 20 seconds; Support 1-5 kinds of gas detection at the same time, built-in powerful air pump, with Data storage and Temperature Humidity detection function.

$ 716.00

Adopt Modular design, support multi-gas multi-range detection, Sensors are interchangeable and tool-free offline calibration. With flameproof structure, it can be directly installed in hazardous zones 1 and 2, and output 4~ 20mA analog signal and RS485 digital signal at the same time.

$ 393.00

Electrochemical sensor, range 0~ 50ppm, with flameproof design and infrared remote control function, support 4~ 20mA output, suitable for Gas detection in dangerous places.

$ 212.00

Using infrared CO2 Sensor control accuracy +/- 0.1%, gas sleeve heating heating, CO2 recovery time does not exceed the concentration value × 1.2 minutes, double door structure sealing good anti-pollution.

$ 1524.00

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