Gas Sensor
MQ137 Semiconductor Gas Sensor 5V DC for NH3 Ammonia Detection 5-500 ppm
High-sensitivity MQ137 sensor for domestic and industrial NH3 gas alarms. Features SnO2 semiconductor, 5V heater, low power consumption ≤900mW, and fast response. Ideal for portable detectors and leakage monitoring.
MQ136 MQ-136 Hydrogen Sulfide Gas Sensor 5V 10-1000ppm for Leakage Alarms
High sensitivity H2S gas sensor with fast response under 10s and recovery under 30s. Stable performance, long service life over 5 years, and simple circuit integration. Ideal for industrial waste gas monitoring and safety alarms.
MQ135 MQ-135 Gas Sensor 5V DC for Domestic Alarms Portable Gas Detectors
Wide-range detection of ammonia, nitrogen oxides, alcohols, benzene, smoke, and CO₂. High sensitivity, fast response, stable performance, and long service life. Simple drive circuit with analog and digital output options. Ideal for domestic and industrial gas alarms.
YJJ AOD1000 High-Pressure Diving Oxygen Sensor 0-100% for Oxygen Chambers 0.8-7.0 bar
The AOD1000 high-pressure oxygen sensor detects oxygen concentration in high-pressure chambers up to 7.0 bar. Featuring a Molex 3-pin connector, no external power needed, and factory-calibrated with temperature compensation. Ideal for diving, ship, and tanker applications.
MQ131 Ozone Gas Sensor 5V 10-1000ppb Detection Range for Domestic Concentration Alarms
MQ131 semiconductor gas sensor uses WO₃ sensitive material for reliable ozone detection. Features long lifespan, fast response, high sensitivity, and simple drive circuit. Ideal for domestic and industrial ozone alarms. Stable performance with 5V operation.
MTCS2601 Thermal Conductivity Gas Sensor for Primary Pressure Control 10⁻⁴ to 1000 mbar
Based on the Pirani principle, the MTCS2601 offers ultra-fast response (
YJJ AZDM01 Optical Turbidity Sensor 5V DC Analog Output for Wastewater Monitoring
The AZDM01 optical turbidity sensor offers fast response, waterproof housing, and high reliability for water quality monitoring. With 5V DC operation and analog output, it provides accurate TSS measurement. Features low cost, simple drive circuit, and long-term stability for industrial wastewater applications.
YJJ AGS2602 TVOC Gas Sensor 1-30 ppm Detection Range I2C Output
High-performance TVOC sensor with silicon-based resistive chip for reliable 1-30 ppm detection. Features low power consumption, high sensitivity, I2C output, and over 10-year lifespan. Factory-calibrated for B2B industrial applications.
YJJ H2/CA-1000 Hydrogen Sensor 0-1000ppm Anti-CO Interference Gastrointestinal Disease Detection
High-precision hydrogen sensor with 0-1000ppm range, 2ppm resolution, and anti-carbon monoxide interference. Ideal for gastrointestinal disease detection, petroleum safety, and environmental monitoring. Features 2-year lifespan, fast T90
YJJ VOC-B4 Electrochemical VOC Gas Sensor 32.3mm for Air Quality Monitoring
Detects VOC and CO gases simultaneously. Fast response under 30s, 100 ppm CO range, 2 ppm ethanol range. Compact 32.3mm size. Compatible with CO-B4 for unbiased VOC estimation. Ideal for environmental air quality monitoring.
YJJ 4SiH4-20 Electrochemical Silane Sensor 0-20 ppm 4-20 mA for Rubber Processing
YJJ TSE 4 series silane sensor detects 0-20 ppm with ±5% F.S. accuracy. Features fast response ≤15s, 4-20 mA/RS485 output, and ExdIICT6 explosion-proof rating. Ideal for rubber processing and hazardous environments.
YJJ ANH3000 Electrochemical Ammonia Gas Sensor 0-100 ppm for Industrial Monitoring and Alarm Systems
The YJJ ANH3000 is a high-precision electrochemical ammonia gas sensor with a 0-100 ppm range and 200 ppm option. Features fast T90 ≤90s response, linear current output, and 24-month lifespan. Ideal for gas alarms, analyzers, and industrial monitoring equipment.
AHT2415C Temperature Humidity Probe 304 Stainless Steel I2C Sensor for HVAC Medical Automotive
The AHT2415C probe features a durable 304 stainless steel shell with waterproof glue, offering excellent impact and chemical resistance. Fully calibrated for long-term stability, it provides quick response and strong anti-interference. Ideal for HVAC, medical, automotive, and industrial applications.
AHS3000 Potentiometric Electrolytic Hydrogen Sulfide Gas Sensor 0-100 ppm for Industrial Safety Detection
The AHS3000 is a compact, high-sensitivity H2S sensor with 700±150 nA/ppm sensitivity and ≤30s response time. It offers stable output across -40°C to 55°C, long-term drift
YJJ AOM-09 Electrochemical Oxygen Sensor Probe 0-100% O2 for Anesthesia Equipment
YJJ AOM-09 electrochemical oxygen sensor measures 0-100% O2 with fast response
AHS01IB Water Vapor Sensor 5V I2C High Temperature Resistant for OEM
High-precision water vapor sensor with 24-bit AD acquisition, ultra-fast response, and strong anti-interference. Ideal for OEM applications in microwave ovens, dryers, and industrial humidity control. Operating range -5°C to +150°C.
YJJ ACM3000 Three Electrode Electrochemical CO Sensor 0-1000 ppm for Industrial Alarm Systems
The ACM3000 three-electrode electrochemical carbon monoxide sensor offers rapid response and stable output. With a measurement range of 0-1000 ppm and T90 ≤15 seconds, it is ideal for industrial alarms, analyzers, and air quality systems. Directly replaceable with similar sensors, it provides a high-quality, low-cost detection solution.
YJJ H2-1000 Hydrogen Sensor Module 0-1000 ppm for Leak Detection
High-sensitivity hydrogen sensor module with 0-1000 ppm range, fast T90 response under 70s, and UART output. Ideal for hydrogen vehicle safety, industrial monitoring, and energy storage. Features 2-year lifespan, wide temperature tolerance, and 12-month warranty.
H2-1000 Hydrogen Gas Sensor 0-1000 ppm Range Fast Response T90 Under 60s for Industrial Safety
High-sensitivity H2 sensor detects hydrogen from 0-1000 ppm with fast T90 response under 60 seconds. Features low cross-sensitivity, wide temperature range, and long service life. Ideal for industrial safety, fuel cells, and lab use.
AOX4000 Fluorescent Oxygen Sensor O2 Gas High Precision 500-1200mbar
High precision O2 sensor with temperature compensation, no drift, and low power consumption. Long life over 6 years, quick response, and calibrated digital output. RoHS compliant, lead-free, and resistant to cross-interference from other gases.