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    Infrared CO2 Sensor Module, UART/ PWM output

    $104.56
    SKU: ATO-ICDS-Z19C
    Resonale price Infrared CO2 sensor module with UART/ PWM two output signal for selection, available measuring range 400~2000 ppm/ 400~5000 ppm/ 400~10000 ppm, working voltage 5VDC. The NDIR CO2 sensor can be used to monitor production processes in smart homes, agricultural greenhouses and animal husbandry.

    Oxygen (O2) Gas Sensor, 0~100%

    $66.82
    SKU: ATO-GS-O2
    Buy an O2 sensor for Oxygen gas detection. Electrochemical working principle, 0~100% measurement range, strong anti-interference ability, fast response speed. 3 types of Oxygen (O2) gas sensors can work without an external power supply and are available to choose from according to your application area.

    Ozone (O3) Detection Sensor, 10ppb to 1000ppb

    $50.36
    SKU: ATO-GS-131
    Ozone gas sensors for sale online. It has high sensitivity to Ozone and also has certain sensitivity to strong oxidizing gases such as Chlorine and Nitrogen Dioxide. Ozone (O3) detection sensor, with a detection range of 10ppb to 1000ppb, widely used in household Ozone concentrations exceeding alarm alarms, industrial Ozone concentrations exceeding alarm alarms, etc.

    NDIR CO2 Gas Sensor, 0 to 2000/ 5000 ppm

    $138.73
    SKU: ATO-ICDS-Z16
    Lower cost NDIR CO2 sensor for sale online. The carbon dioxide sensor with wide range measuring range from 0 to 5000 ppm, working voltage 5VDC, UART/ PWM two output signal can be chosen. Infrared carbon dioxide sensors are widely used in various occasions where flammable and explosive gases exist.

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

    $49.87
    SKU: ATO-OS-F2000
    The ultrasonic oxygen sensor offers a concentration detection range of 21%~95.6%, a flow detection range of 0~15 L/min, a resolution of 0.1 L/min, and an accuracy of ±0.2 L/min. With a detection cycle of 500 ms and a preheat time of less than 10 seconds. It requires a DC voltage supply of 5V~12V (±0.25V), with a current of ≤40 mA and power consumption of ≤200 mW. widely used in medical, industrial, chemical, mining and food applications, especially in medical oxygen generators, industrial oxygen equipment, mining and food storage production.

    NDIR CO2 Sensor Module, 0 to 10000 ppm

    $126.03
    SKU: ATO-ICDS-Z14B
    High accuracy NDIR CO2 sensor module has optional measuring range of 0~10000ppm, UART/ PWM two output signals are optional. A carbon dioxide sensor is a high-performance product that closely combines mature infrared absorption gas detection technology with precise optical path design and precise circuit design.

    Ultrasonic Oxygen Sensor, 0-10L/min, 21-95.6%

    $51.74
    SKU: ATO-OS-F1000
    The ultrasonic oxygen sensor detects concentrations from 21%~95.6% with 0.10% resolution and ±1.5% FS accuracy. It measures flow rates from 0~10 L/min with 0.1 L/min resolution and ±0.2 L/min accuracy. Featuring a 500 ms detection cycle, <10-second preheat time, and UART 9600 bps communication, it operates at 5°C~55°C with a DC12V power supply. Made from durable PBT plastic. Used in medical, industrial, chemical, mining and food applications.

    High Pressure Oxygen Sensor, 0.8-7 bar, 0-100%

    $211.42
    SKU: ATO-OS-D1000
    The high pressure oxygen sensor functions within a pressure range of 0.8~7.0 bar, a operating temperature range of 0~45°C. The oxygen sensor operates on a voltage divider electrochemical principle with an output voltage range of 8.5~14mV (in air) and a measurement range of 0~100%. The sensor includes temperature compensation for 0~50°C and supports a load resistance of >10kΩ. Widely used for oxygen monitoring in high-pressure equipment, such as high-pressure oxygen chamber, testing ships, tankers and other equipment.

    NDIR CO2 Sensor Module, 400-2000/ 5000/ 10000 ppm

    $103.33
    SKU: ATO-ICDS-Z14A
    Cost-effective NDIR CO2 sensor module has optional measuring range 0/400~2000/ 5000/ 10000, peak current 125 mA, average current less than 40 mA, UART/ PWM/ 0.4-2V DC three output signals for selection. CO2 gas sensor built-in temperature compensation; digital output and analog voltage output at the same time, easy to use.

    Fluorescent Oxygen Sensor, 0-300mbar, 0-25%

    $100.31
    SKU: ATO-OS-X4000
    Good fluorescent oxygen sensor for sale. It is capable of measuring oxygen concentrations from 0 to 25% and oxygen partial pressures ranging from 0 to 300mbar. It operates within a voltage range of 4.75~5.25V and features an average current consumption of 7.5mA, with a peak current of 32mA. The sensor offers high precision, with an oxygen partial pressure accuracy of less than 2% FS and an atmospheric pressure accuracy of ±5mbar. Suitable for scenarios such as oxygen generators, incubators, oxygen concentrators.

    Industrial NDIR CO2 Sensor for HVAC, 0 to 2000/ 6000 ppm

    $345.08
    SKU: ATO-ICDS-411D
    Industrial NDIR CO2 sensor at affordale price for sale. The CO2 sensor HVAC with measuring range 0~2000 ppm/ 0~6000 ppm/ 0~1% VOL/ 0~3% VOL/ 0~5% VOL can be chosen, UART/ analog voltage signal two output method are available. The industrial CO2 sensor is widely used for HVAC refrigeration, industrial-process control and safety protection, agriculture and animal husbandry.

    Carbon Dioxide (CO2) Sensor for Home, 0 to 2000 ppm

    $208.30
    SKU: ATO-ICDS-711A
    Carbon dioxide sensor online for sale at reasonable price. NDIR CO2 sensor has wide measuring range from 0 to 2000 ppm, working voltage 3.6~5.0V DC, fast response time less than 120 seconds. Infrared co2 sensor is widely used for industrial field instrumentation, industrial-process control and safety protection.

    Oxygen Gas Sensor/Transmitter, RS485/4-20mA/0-5V

    $101.58
    SKU: ATO-OS-3002O2
    The oxygen gas sensor measures ranges of 0-30%VOL for RS485 output and 0-25%VOL for analog output, with an accuracy of ±3%FS and a resolution of 0.1%VOL. Gas transmitter has a power supply range of 10~30V DC, with the 0~10V output type requiring a 24V supply. Widely used in industries such as process control, environmental monitoring, medical devices, food and beverage, safety detection, scientific research, and combustion system optimization.

    Alcohol Gas Sensor, 25ppm to 500ppm

    $29.52
    SKU: ATO-GS-3Q
    This gas sensor has high sensitivity to alcohol gas and can resist interference from gasoline, smoke, and vapor. Quality semiconductor alcohol gas sensor has a detection range of 25ppm to 500ppm, widely used in household alcohol gas alarms, industrial alcohol gas alarms and portable alcohol detectors.

    Ammonian (NH3) Gas Sensor, 0-100ppm

    $211.69
    SKU: ATO-GS-NH3
    The ammonian (NH3) gas sensor is a highly accurate detector for domestic and industrial use, detecting NH3 in the range of 0-100ppm. It utilizes electrochemical three-electrode technology, with a resolution of 1ppm, an error of ≤±3%, a repeatability of ≤±1%, a DC 5V power supply, a power consumption of ≤1W, and a fast response time of 90 seconds, as well as reliable Modbus-RTU communication. With 90 seconds fast response and reliable Modbus-RTU communication, it is an ideal choice for home/ industry gas detection.

    Carbon Monoxide (CO) Gas Sensor, 0 to 1000ppm

    $54.22
    SKU: ATO-GS-ACM3000
    Factory price CO gas sensor provides electrochemical principle, 0ppm to 1000ppm detection range, high sensitivity, low power consumption, fast response & recovery and simple driving circuit, perfect for Carbon Monoxide leak detection for residential or industrial use.

    Carbon Monoxide (CO) Gas Sensor, 5ppm to 5000ppm

    $30.03
    SKU: ATO-GS-702B
    The provided Carbon Monoxide gas sensor uses a simple circuit to convert conductivity changes in gas concentration into corresponding output signals. MEMS CO gas sensor with a detection range 5ppm to 5000ppm is a good choice for carbon monoxide leak detection in residential or industrial applications.

    Electrochemical Oxygen Sensor, 0~25%vol

    $81.92
    SKU: ATO-OS-4ECO2
    The electrochemical oxygen sensor is designed to detect O2 concentrations with a detection range of 0~25%vol and a resolution of 0.1%vol. It offers a sensitivity of 115±25µA/%vol and a rapid response time of T90 ≤ 15s. The oxygen sensor is widely applicable in industrial production, power plants, mining, petrochemical industries, industrial instruments, and environmental protection sectors.

    Flammable Gas Sensor, 300ppm to 10000ppm

    $5.83
    SKU: ATO-GS-MQ2
    High-quality gas sensor has good sensitivity to flammable gases and smoke from 300ppm to 10000ppm. This combustible gas sensor has long life, low cost and simple drive circuit, used for household gas leak alarms, industrial combustible gas alarms and portable gas detectors.

    Formaldehyde (CH2O) Gas Sensor, 0-10ppm

    $165.71
    SKU: ATO-FGS-CH2O
    ATO formaldehyde (CH2O) gas sensor, now on sale, offers precise detection with a 50 ppm load concentration and 0.55 ± 0.15 μA/ppm sensitivity at 20°C. Engineered for stability with <1 ppm baseline drift and 0.1 ppm resolution, it operates from -20°C to +50°C, ideal for home environmental monitoring and industrial safety. Act now to secure this high-quality CH2O sensor at a competitive price.