ShenzhenYijiajie Electronic Co., Ltd.
                                                                                                           
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Gas Sensor

China YJJ Mini600-CO₂ NDIR CO2 Sensor Module 0-6000 ppm Ultra-small with Temperature Humidity Compensation for sale

YJJ Mini600-CO₂ NDIR CO2 Sensor Module 0-6000 ppm Ultra-small with Temperature Humidity Compensation

Price: Negotiable
MOQ: 1
Delivery Time: 5-8 days

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.

China YJJ XT-RPUMP-K1 Replacement Air Pump Assembly for BW Max XT II 4-in-1 Gas Detector 20m Sampling for sale

YJJ XT-RPUMP-K1 Replacement Air Pump Assembly for BW Max XT II 4-in-1 Gas Detector 20m Sampling

Price: Negotiable
MOQ: 1
Delivery Time: 5 to 8 working days

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.

China YJJ ExplorIR-M-5 NDIR CO2 Sensor 0-5% Vol for Medical Equipment 3.5mW for sale

YJJ ExplorIR-M-5 NDIR CO2 Sensor 0-5% Vol for Medical Equipment 3.5mW

Price: Negotiable
MOQ: 1
Delivery Time: 5-8 days

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.

China MSA ALTAIR 5X Portable Multi-Gas Detector 6-Gas LEL O2 CO H2S CO2 IR IP65 20H for sale

MSA ALTAIR 5X Portable Multi-Gas Detector 6-Gas LEL O2 CO H2S CO2 IR IP65 20H

Price: Negotiable
MOQ: 1PCS
Delivery Time: 5-8 work days

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.

China LD2410C 24GHz FMCW Millimeter Wave Human Presence Radar Sensor Module 5V 79mA for sale

LD2410C 24GHz FMCW Millimeter Wave Human Presence Radar Sensor Module 5V 79mA

Price: Negotiable
MOQ: 1
Delivery Time: 3-5Workingdays

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.

China Limiting Current Zirconia Oxygen Gas Sensor SO-E2-250 TO8 Housing 0.10-25.0 vol% O2 for sale

Limiting Current Zirconia Oxygen Gas Sensor SO-E2-250 TO8 Housing 0.10-25.0 vol% O2

Price: Negotiable
MOQ: 1
Delivery Time: 3-5Workingdays

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.

China YJJ VQ21TB 0-100% LEL Catalytic Combustion Gas Sensor for Combustible Gases 2.0V 300mA for sale

YJJ VQ21TB 0-100% LEL Catalytic Combustion Gas Sensor for Combustible Gases 2.0V 300mA

Price: Negotiable
MOQ: 1
Delivery Time: 5-8 days

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.

China YJJ NC-6264A RIKEN 0-100% LEL Catalytic Combustion Combustible Gas Sensor for Methane Propane Hydrogen for sale

YJJ NC-6264A RIKEN 0-100% LEL Catalytic Combustion Combustible Gas Sensor for Methane Propane Hydrogen

Price: Negotiable
MOQ: 1
Delivery Time: 5-8 days

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.

China MEMS Semiconductor TVOC Gas Sensor AGS2620C00 High Sensitivity 50-5000 ppm Ethanol Detection for sale

MEMS Semiconductor TVOC Gas Sensor AGS2620C00 High Sensitivity 50-5000 ppm Ethanol Detection

Price: Negotiable
MOQ: 1
Delivery Time: 3-5Workingdays

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.

China YJJ MP7227-DA 0-5%VOL 0-100%LEL MEMS Catalytic Combustion Gas Sensor for Combustible Gases for sale

YJJ MP7227-DA 0-5%VOL 0-100%LEL MEMS Catalytic Combustion Gas Sensor for Combustible Gases

Price: Negotiable
MOQ: 1
Delivery Time: 5-8 days

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.

China 4CF+ 2112B2005 Carbon Monoxide Gas Sensor 3 Electrode Electrochemical 30-50C 80-120Kpa for sale

4CF+ 2112B2005 Carbon Monoxide Gas Sensor 3 Electrode Electrochemical 30-50C 80-120Kpa

Price: Negotiable
MOQ: 1
Delivery Time: 3-5work days

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.

China Nitrogen Dioxide NO2 Gas Sensor Series 4 Electrochemical for MX6 iBrid Multi-Gas Detector 2 Year Lifespan for sale

Nitrogen Dioxide NO2 Gas Sensor Series 4 Electrochemical for MX6 iBrid Multi-Gas Detector 2 Year Lifespan

Price: Negotiable
MOQ: 1
Delivery Time: 3-5Workingdays

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.

China Remote Combustible Gas Detector Transmitter Aluminum Alloy Casing 100 ft Sensor Distance for sale

Remote Combustible Gas Detector Transmitter Aluminum Alloy Casing 100 ft Sensor Distance

Price: Negotiable
MOQ: 1
Delivery Time: 3-5work days

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.

China NDIR Infrared Methane CH4 Gas Sensor 0-100% VOL Explosion Proof Ex ia I for Coal Mine Underground for sale

NDIR Infrared Methane CH4 Gas Sensor 0-100% VOL Explosion Proof Ex ia I for Coal Mine Underground

Price: Negotiable
MOQ: 1
Delivery Time: 5-8 days

Ultra-low power

China YJJ GY-SGP41 VOC NOx Air Quality Module 3.3V 5V I2C for Smart Home IoT for sale

YJJ GY-SGP41 VOC NOx Air Quality Module 3.3V 5V I2C for Smart Home IoT

Price: Negotiable
MOQ: 1
Delivery Time: 5-8 days

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.

China YJJ MIPEX-04-1-12-3.1 Ultra-Low Power NDIR Methane Sensor 0-100% Vol for Portable Detectors for sale

YJJ MIPEX-04-1-12-3.1 Ultra-Low Power NDIR Methane Sensor 0-100% Vol for Portable Detectors

Price: Negotiable
MOQ: 1
Delivery Time: 5-8 days

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.

China SME100 SMC100 Miniature Industrial Intelligent Gas Sensor 20x20x10.35mm UART Digital Output for sale

SME100 SMC100 Miniature Industrial Intelligent Gas Sensor 20x20x10.35mm UART Digital Output

Price: Negotiable
MOQ: 1
Delivery Time: 3-5work days

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.

China MH-Z9041A TDLAS Laser Methane Sensor 3-100%LEL for Household Gas Alarm for sale

MH-Z9041A TDLAS Laser Methane Sensor 3-100%LEL for Household Gas Alarm

Price: Negotiable
MOQ: 1
Delivery Time: 3-5work days

The MH-Z9041A laser methane sensor uses TDLAS technology for ultra-high selectivity to CH4, immune to poisoning and oxygen-independent. With T90

China Industrial Scientific 17156650-1 0-1500ppm Electrochemical Carbon Monoxide CO Gas Sensor for Radius BZ1 Monitor for sale

Industrial Scientific 17156650-1 0-1500ppm Electrochemical Carbon Monoxide CO Gas Sensor for Radius BZ1 Monitor

Price: Negotiable
MOQ: 1
Delivery Time: 5-8 days

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.

China YJJ HIS550R-0WC Nano Infrared Light Source 2-20μm 700mW NDIR Gas Sensor Emitter for sale

YJJ HIS550R-0WC Nano Infrared Light Source 2-20μm 700mW NDIR Gas Sensor Emitter

Price: Negotiable
MOQ: 1
Delivery Time: 5 days

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.