Gas Sensor
YJJ Mini600-CO₂ NDIR CO2 Sensor Module 0-6000 ppm Ultra-small with Temperature Humidity Compensation
Ultra-compact NDIR CO2 sensor module with 0-6000 ppm range, ±30 ppm accuracy, and built-in temperature/humidity compensation. Features ABC auto-calibration, 5V USB power, UART MODBUS output, and ≥5 year lifespan. Ideal for portable detectors, IoT devices, and indoor air quality monitoring.
YJJ XT-RPUMP-K1 Replacement Air Pump Assembly for BW Max XT II 4-in-1 Gas Detector 20m Sampling
High-performance replacement pump assembly for BW Max XT II gas detectors. Supports multi-gas detection with 20m sampling distance. Features intelligent diaphragm pump, triple alarm system, and IP66/67 protection. Ideal for confined space and industrial safety applications.
YJJ ExplorIR-M-5 NDIR CO2 Sensor 0-5% Vol for Medical Equipment 3.5mW
Patented solid-state IR LED and gold-plated chamber ensure 15+ year lifespan and shock resistance. Ultra-low 3.5mW power consumption ideal for battery devices. 0-5% Vol range precisely matches cell culture. Digital UART output, quick startup under 10 seconds.
MSA ALTAIR 5X Portable Multi-Gas Detector 6-Gas LEL O2 CO H2S CO2 IR IP65 20H
Detects up to 6 gases simultaneously with catalytic, electrochemical, and IR sensors. Features fall alarm, instant alarm, and sensor life warning. IP65 rated, 3m drop tested, 20h battery life. Ideal for oil & gas, chemical, and confined space safety.
LD2410C 24GHz FMCW Millimeter Wave Human Presence Radar Sensor Module 5V 79mA
Detects stationary, slightly moving, and active human subjects. Low power consumption, compact 16x22mm design, and UART interface. Ideal for smart home, security, and IoT projects. Supports 5-12V input, operates from -40°C to +85°C.
Limiting Current Zirconia Oxygen Gas Sensor SO-E2-250 TO8 Housing 0.10-25.0 vol% O2
High accuracy limiting current zirconia oxygen sensor with 0.10-25.0 vol% O2 range. Features long service life, low gas interference, and single point calibration. Ideal for medical, industrial, food, and safety applications.
YJJ VQ21TB 0-100% LEL Catalytic Combustion Gas Sensor for Combustible Gases 2.0V 300mA
YJJ VQ21TB catalytic combustion gas sensor detects 0-100% LEL combustible gases with fast T90 ≤ 2s response. Anti-poisoning design resists silicone oil and solvents. Rated 2.0V, lifespan ≥5 years. Ideal for industrial gas detectors, petrochemical, and municipal safety monitoring.
YJJ NC-6264A RIKEN 0-100% LEL Catalytic Combustion Combustible Gas Sensor for Methane Propane Hydrogen
Original replacement sensor for Riken portable detectors. Features catalytic bead detection, 0-100% LEL range, and 3-year lifespan. Resistant to poisoning, ideal for petrochemical, gas utility, and confined space safety monitoring.
MEMS Semiconductor TVOC Gas Sensor AGS2620C00 High Sensitivity 50-5000 ppm Ethanol Detection
High sensitivity MEMS TVOC gas sensor for ethanol, benzene, ammonia, and VOCs. Low power consumption at 42 mA heater current, 5V operation, and TO-5 package. Ideal for battery-powered devices with fast response and 5-year lifespan.
YJJ MP7227-DA 0-5%VOL 0-100%LEL MEMS Catalytic Combustion Gas Sensor for Combustible Gases
Ultra-low power MEMS catalytic bead gas sensor for CH4 and other combustibles. Features 0-5%VOL range, T90 ≤12s response, ATEX/IECEx explosion-proof certification, and SMT packaging. Ideal for portable detectors and industrial safety equipment.
4CF+ 2112B2005 Carbon Monoxide Gas Sensor 3 Electrode Electrochemical 30-50C 80-120Kpa
High precision 3-electrode electrochemical CO sensor for industrial use. Operates in -30 to 50°C, 80-120Kpa, 15-90%RH. Low cross-sensitivity to H2S, SO2, NO2. 6-month storage life. Reliable and durable.
Nitrogen Dioxide NO2 Gas Sensor Series 4 Electrochemical for MX6 iBrid Multi-Gas Detector 2 Year Lifespan
Genuine OEM replacement NO2 sensor for MX6 iBrid detectors. Electrochemical design ensures accurate toxic gas detection. Approx. 2-year lifespan. Ideal for industrial safety, emergency response, and confined space entry.
Remote Combustible Gas Detector Transmitter Aluminum Alloy Casing 100 ft Sensor Distance
Accurate detection with fast response. Mount sensor up to 100 ft from transmitter. Tri-color backlit display. Auto-inhibit during maintenance prevents false alarms. Compatible with catalytic bead sensors. Non-intrusive magnetic switches. Long life, poison resistant beads reduce ownership cost.
NDIR Infrared Methane CH4 Gas Sensor 0-100% VOL Explosion Proof Ex ia I for Coal Mine Underground
Ultra-low power
YJJ GY-SGP41 VOC NOx Air Quality Module 3.3V 5V I2C for Smart Home IoT
Dual gas detection module based on SGP41 chip, measures VOC and NOx with index output. Features wide temperature range -30°C to +70°C, low power consumption, I2C interface, and plug-and-play design. Ideal for smart home, IAQ monitoring, and IoT devices.
YJJ MIPEX-04-1-12-3.1 Ultra-Low Power NDIR Methane Sensor 0-100% Vol for Portable Detectors
Ultra-low power NDIR methane sensor with 35 μA average current enables 2+ years battery life. Measures 0-100% Vol CH4 with ±0.1% Vol accuracy. Ex ia IIC Ga intrinsic safety for Zone 0. Digital UART output, maintenance-free lifespan >10 years. Ideal for portable gas detectors, industrial monitoring, and IoT wireless sensing.
SME100 SMC100 Miniature Industrial Intelligent Gas Sensor 20x20x10.35mm UART Digital Output
Ultra-miniature flat gas sensor with factory pre-calibration and plug-and-play design. Features intelligent temperature/humidity compensation, fault self-diagnosis, and multi-mode low-power operation. Supports CO, H2S, O2, CH4 detection. Ideal for portable detectors, wearable terminals, and industrial safety monitoring.
MH-Z9041A TDLAS Laser Methane Sensor 3-100%LEL for Household Gas Alarm
The MH-Z9041A laser methane sensor uses TDLAS technology for ultra-high selectivity to CH4, immune to poisoning and oxygen-independent. With T90
Industrial Scientific 17156650-1 0-1500ppm Electrochemical Carbon Monoxide CO Gas Sensor for Radius BZ1 Monitor
Electrochemical CO sensor with 0-1500ppm range and 1ppm resolution. Features DualSense technology for reliability and SafeCore plug-and-play design. Compatible with Radius BZ1 monitor. Ideal for confined spaces and industrial safety. 2-year lifespan.
YJJ HIS550R-0WC Nano Infrared Light Source 2-20μm 700mW NDIR Gas Sensor Emitter
High-power nano infrared light source for NDIR gas sensors. Features 700mW max power, 2-20μm spectral range, and 600°C radiation temperature. Patented nanotechnology boosts signal intensity by 500%. TO-39 package with gold-coated reflector. Ideal for CO₂, CH₄, VOC detection. 10-year lifespan.