Gas Sensor
Sulfur Dioxide Gas Sensor 0-5000 ppm for Dry Flue Gas Measurement 0393 0250
Plug-and-play SO₂ sensor for dry flue gas analysis. Pre-calibrated for immediate use, compact 40×30×30 mm design, and easy on-site replacement. Ideal for industrial combustion and boiler emission monitoring.
YJJ GM-602B MEMS Hydrogen Sulfide Gas Sensor 0.5-500ppm for H2S Detector
MEMS hydrogen sulfide sensor with high sensitivity, low power consumption, and quick response. Ideal for portable and stationary H2S detectors. Durable, stable, and long-lasting with simple drive circuit.
MQ-4B Flammable Gas Sensor Methane Detector 300-10000ppm 5V Long Life 10 Years
MQ-4B semiconductor gas sensor with high sensitivity to methane, low cost, and simple drive circuit. Features 10-year lifespan, 5V operation, and anti-interference to alcohol. Ideal for domestic gas alarms, industrial flammable gas detectors, and portable gas detectors.
4COSH CO H2S Dual Gas Sensor ABC05-800 4 Series for Industrial Safety Portable Detection
Simultaneously detects CO and H2S with fast T90
GM 402B MEMS Combustible Gas Sensor 1-10000ppm for Home Gas Leak Detection
MEMS combustible gas sensor with Si-based microhot plate for detecting methane and propane leaks. High sensitivity from 1 to 10000ppm, low power consumption, and easy circuit integration. Ideal for home safety and industrial gas monitoring.
S4CO-1000 Carbon Monoxide Gas Sensor Electrolytic 80nA PPM for Alarm Air Quality
High precision electrolytic CO sensor with 80±20nA/PPM sensitivity, fast
MH-440D NDIR Infrared Methane Sensor UART 0-10% Vol for HVAC Air Quality Monitoring
Compact NDIR methane sensor with 0-10% Vol range, fast T90 5 year lifespan. Features built-in temperature compensation, IP54 protection, and UART output. Ideal for HVAC, indoor air quality, and industrial safety monitoring.
ME2-CO 14x14 Carbon Monoxide Electrochemical Gas Sensor 0-1000 ppm CO Detection Probe
High-performance CO sensor with 3.6-9 nA/ppm sensitivity and 1 ppm resolution. Features low power consumption, excellent stability (
YJJ 4 Series Electrochemical H2S Sensor 4HS+ 300mV Bias for Industrial Fixed or Portable CO Alarms
High-performance electrochemical H2S sensor with 300mV bias voltage,
YJJ 4HSC 3 Series Electrochemical Hydrogen Sulfide Sensor H2S Sensor 0-100ppm
UK imported CITY 4HSC three-electrode electrochemical H2S sensor with 0-100ppm range, 500ppm overload, and 2-year air life. Ideal for industrial safety, petrochemical, and fire protection applications.
PID-AH VOC Gas Sensor Photo Ionisation Detector 1ppb to 40ppm Range
High-sensitivity PID sensor for VOC and toxic gas detection from 1ppb to 40ppm. Features fast
G4P CO2 Infrared Gas Sensor NDIR 0-100%VOL Analog Digital Output -40 to 70C
G4P CO2 infrared gas sensor uses NDIR principle for accurate 0-100%VOL measurement. Features high resolution, temperature compensation, and dual analog/digital outputs. No oxygen dependence, no catalytic poisoning, long life. Ideal for industrial plants, tunnels, and mining safety.
YJJ SMD1001 MEMS Semiconductor Formaldehyde Gas Sensor 0-3ppm HCHO Detection 1.8V Heating
High-precision MEMS semiconductor gas sensor for formaldehyde detection from 0 to 3ppm. Features ceramic package, ≤5V DC circuit voltage, and >4 year sensor life. Ideal for industrial and commercial air quality monitoring with reliable performance and customization options.
TGS821 Semiconductor Hydrogen Gas Sensor 100PPM Leak Detector High Sensitivity 2V
High sensitivity and selectivity to hydrogen with excellent repeatability. Simple application circuit and ceramic base for harsh environments. Ideal for transformer repair, battery, and steel industry hydrogen detection. Reliable performance for industrial safety.
PID-AH5 VOC Photo Ionisation Detector PID Sensor 10.6 eV Lamp 40 ppm Range
High-performance PID sensor for detecting VOCs with ionization potentials below 10.6 eV. Features a linear range of 40 ppm isobutylene, fast 5-second stabilization, and low offset voltage. Ideal for industrial safety and environmental monitoring.
YJJ 3NO2-500CT Electrochemical NO2 Sensor 0-500 ppm for Flue Gas Emission Monitoring
The YJJ 3NO2-500CT is a three-electrode electrochemical NO2 sensor designed for harsh industrial environments. It offers 0-500 ppm range, fast T90 ≤35s response, stable linear output, and strong anti-interference. Ideal for flue gas emission, process control, and air quality monitoring. Directly replaces mainstream 3-series sensors.
MP-4 Methane Natural Gas Sensor Biogas Planar Semiconductor 5V 350mW Output Signal
MP-4 methane sensor uses planar semiconductor technology with a micro Al2O3 substrate for high sensitivity and stability. Detects natural gas and biogas with conductivity-based output. Features low power consumption ≤350mW, 5V heating voltage, and adjustable load resistance. Ideal for industrial gas detection systems.
Testo 0393 0152 0-300 PPM Nitrogen Monoxide Sensor for Industrial Combustion Flue Gas Monitoring
Precision NO sensor for Testo 340/330 analyzers. Measures 0-300 ppm with 0.1 ppm resolution. Features fast
Electrochemical Ozone Gas Sensor 7O3-1 068-0300-000 0-1 ppm for O3 Monitoring
High-precision electrochemical ozone sensor for monitoring O3 concentration from 0 to 1 ppm. Features fast response (T90 ≤ 45s), long-term stability, and RoHS compliance. Suitable for industrial and environmental applications with wide temperature range -40°C to 50°C.
Testo 0390 0085 Spare O2 Sensor Replacement for Flue Gas Analyzers 0-21 vol%
High-precision O2 sensor for Testo flue gas analyzers. Measures 0-21 vol% with ±0.2 vol% accuracy and 30s response time. Ensures reliable oxygen detection in models like testo 305, 310, 325. Durable, certified replacement part.