Gas Sensor

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Electrochemical Carbon Monoxide Sensor, 0-500ppm/0-1000ppm

SUCH-COS-ACM2000
● 0-500ppm/0-1000ppm ● 3-electrode electrochemical ● 1 ppm resolution ● 2000ppm upper measurement limit
$52.22

Oxygen (O2) Gas Sensor, 0~100% Linear Output

SUCH-O2S-02
● Detect: Oxygen (O2) ● 0~100% linear output ● Shared-voltage electrochemical ● Output voltage: 9–13 mV (in air)
$66.86

Smoke and Propane Gas Sensor, 200~10000ppm

SUCH-GAS-MP2
● Detect gas: Propane, smoke ● Detection rang: 200~10000ppm ● Type: Semiconductor gas sensor ● Loop voltage: VC: ≤10V DC
$25.92

Carbon Monoxide Gas Sensor with MEMS, 5-5000ppm

SUCH-COS-702B
● 5ppm-5000ppm CO ● MEMS process ● ≤24V DC loop voltage ● Load resistance adjustable
$30.03

Electrochemical O2 Sensor, 0~25% Vol, TTL/RS485

SUCH-O2S-OXV
● Detect: Oxygen (O2) ● 0~25% Vol ● TTL/RS485 optional ● Electrochemical two-electrode
$91.59

Smoke Sensor Module with TTL, Pin/Terminal

SUCH-GAS-ZP13
● Detect gas: Propane, smoke ● Interface: Terminal socket, Pin socket ● Output data: A signal switching output ● Output data type: TTL level
$46.33

Alcohol (Ethanol) Gas Sensor, 25~500ppm

SUCH-GAS-MQ3B
● Detect gas: Alcohol vapor ● Detection concentration: 25~500ppm Alcohol ● Type: Semiconductor gas sensor ● Loop voltage: VC≤24V DC
$29.52

CO Transmitter with OLED Display, 0-1000ppm/0-2000ppm

SUCH-COS-300OLED
● 0-1000ppm, 0-2000ppm ● With OLED screen ● RS485, 4-20mA, 0-5V, 0-10V ● 1ppm CO resolution
$98.24

Fluorescent Oxygen Sensor, 0-25%/0-300mbar/500-1200mbar

SUCH-O2S-X4000
● Detect: Oxygen (O2) ● 0-25%/0-300mbar/500-1200mbar ● Current: Average 7.5mA, peak 32mA ● Output voltage: 4.75~5.25V
$100.31

High Pressure Oxygen Sensor, 0-100% Linear, 3 Pin Interface

SUCH-O2S-D1000
● Detect: Oxygen (O2) ● 0~100% linear ● 3 Pin Interface ● Shared-voltage electrochemical
$211.42

Industrial CO Sensor, 0-1000ppm

SUCH-COS-FS4ECO
● 0-1000ppm ● 2000ppm (Max) ● 0mV bias voltage ● 0.5ppm CO resolution
$73.18

Methane (CH4) Gas Sensor, 0-5% Vol, 0-100% Vol

SUCH-GAS-4NCH4
● Detect gas: Methane (CH4) ● Rang: 0-5% Vol~0-100% Vol ● Operating principle: NDIR ● Output signal: UART and 0.4-2V
$294.56

Flammable Gas Sensor, 0-100%LEL

SUCH-GAS-MJC4
● Detect gas: Combustible gas ● Rang: 0–100%LEL ● Principle: Catalytic combustion ● Resolution: 1%LEL
$62.79

Portable CO Gas Sensor, 3 Electrode, 0-500ppm

SUCH-COS-ACM3100
● 0-500ppm ● 3 electrode ● 2000ppm upper limit ● 1ppm CO resolution
$166.18

Ultrasonic Oxygen Flow Sensor, 0-15L/min, 21-95.6%

SUCH-O2S-F2000
● Detect: Oxygen (O2) ● Concentration: 21-95.6% ● Flow: 0 to 15 L/min ● Serial port UART/9600 bps
$49.87

CO Sensor Module, 0-500ppm, UART Output

SUCH-COS-ZE07
● 0-500ppm ● UART/voltage output ● 5V~12V working voltage ● 0.1ppm CO resolution
$67.12

Hydrogen Sulfide (H2S) Gas Sensor, 0-50ppm~5000ppm

SUCH-GAS-H2S
● Detect: Hydrogen sulfide sensor ● Rang: 0-50ppm~5000ppm ● Electrochemical three-electrode ● Resolution: 0.1 ppm
$141.62

Ultrasonic Oxygen Sensor, 21-95.6%, Long/Short Type

SUCH-O2S-F1010
● Detect: Oxygen (O2) ● Concentration: 21-95.6% ● Flow: 0 to 10 L/min ● Long/short type optional
$48.99

Formaldehyde (CH2O) Gas Sensor, RS485/TTL

SUCH-GAS-CH2O
● Detect: Formaldehyde (CH2O) ● Rang: 0-10ppm ● Interface: RS485, TTL ● Resolution: 0.1 ppm
$165.71

Oxygen Gas Transmitter with Display, 0-30%Vol/0-25%Vol

SUCH-O2S-3002
● Detect: Oxygen (O2) ● 0-30%Vol/0-25%Vol ● RS485/4-20mA/0-5V/0-10V ● 10~30V DC/24V DC
$117.58

Gas sensors serve as critical core components for environmental safety and industrial control, enabling precise detection of changes in airborne gas concentrations. They find extensive applications across petrochemical processing, laboratory monitoring, gas alarms, environmental testing, and smart home systems. SUCH offers diverse gas sensor types, including high-performance models for detecting liquefied petroleum gas (LPG), propane, methane, hydrogen, carbon monoxide, ozone, and VOCs. These cover varying requirements from low-concentration leak alarms to high-precision industrial monitoring.

All gas sensors are engineered using electrochemical, semiconductor, or infrared principles, delivering high sensitivity, low power consumption, rapid response, and strong anti-interference capabilities. Their metal-encapsulated structure ensures stable operation in high-humidity, high-temperature, or complex environments, with some models boasting a lifespan of up to 10 years. Whether integrated into industrial equipment or deployed for scientific research and environmental monitoring, SUCH gas sensors provide reliable data support and safety assurance.

Choosing SUCH means choosing a dependable safety monitoring partner. We prioritize technological innovation and adhere to stringent manufacturing standards to guarantee precision and consistency in every sensor. Browse this catalog to discover gas sensor solutions tailored to your applications. Experience the new standard in industrial detection—high sensitivity and stability—adding enduring power to your safety control systems.