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    Oxygen (O2) Gas Meter, 0 to 25%/30% VOL

    5 out of 5 based on 1 reviews | Write a review
    0 to 25%/30% VOL, Oxygen O2 Gas Detector easy to carry. With a rapid response time of ≤10 seconds, you can trust it to alert you to potential hazards promptly. Sound, light, vibration alarm, high and low alarm values can be set by yourself.
    SKU: GD700-O2
    30-day Returns
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    Delivery date: 6-12 days

    Designed for ultimate convenience, the oxygen gas monitor is maintenance-free and provides up to two years of continuous protection. Like its predecessor, it requires no calibration, sensor replacements, battery changes, or recharging, saving you valuable time and resources. Whether you're in the petroleum, petrochemical, metallurgy, or chemical industry, this O2 detector is an invaluable tool for gas detection and personnel protection.


    Model GD800-O2
    Detected gas O2
    Sampling method Diffusion
    Range (optional) 0-25%VOL, 0-30%VOL
    Resolution 0.01%VOL
    Response time ≤10S
    Principle Electrochemical principle
    Alarm mode Sound, light, vibration alarm, high and low alarm values can be set by yourself
    Alarm type Low alarm, high alarm, STEL, TWA, low battery
    Explosion-proof grade ExiaIICT4Ga
    Protection class IP68
    Working temperature -20℃~55℃
    Working humidity 0-95%RH (non-condensing)
    Working air pressure 86~106kpa
    Dimensions 90*60*33mm (length*width*thickness)
    Weight Weight 125g


    • Exceptional Battery Efficiency: Boasting minimal power consumption, this device offers an extended standby time of up to 2 years without the need for battery replacement.
    • Hassle-Free Maintenance: Simply activate the device, and it runs continuously with no calibration, sensor swaps, or battery recharging required.
    • Ultra-Effective Alarm System: Equipped with a high-decibel buzzer and two bright red LEDs that provide sound, light, and vibration alerts for a triple alarm system, ensuring workers are promptly alerted.
    • Versatile Alarm Options: Users have the flexibility to customize alarm settings throughout the device's lifespan, with high and low point alarms, TWA, STEL, and more.
    • Rugged and Secure: With an IP68 rating, this device is resistant to splashes, dust, and shock. Its explosion-proof design and intrinsically safe circuitry offer maximum protection.
    • Streamlined and User-Friendly: Compact and lightweight, this device features a straightforward two-button operation, eliminating the need for extensive training.
    • Cost-Effective Solution: Not only is this device affordable to acquire, but it also boasts a low cost of ownership, making it a smart investment.
    • Portable and Lightweight: Its small form factor and low weight make it easy to carry, ensuring convenience for workers.
    • Robust Build: Crafted from high-strength materials, the device is designed to withstand harsh environments while offering comfort and durability.
    • Enhanced Safety: The self-test function further elevates safety by enabling automatic self-testing.


    Mini portable oxygen gas detector structureApplications

    Oxygen gas detectors find application in various fields, including industrial settings, laboratories, and confined spaces, to ensure the safety of personnel by continuously monitoring and alerting to oxygen levels, thus preventing potential hazards such as oxygen deficiency or enrichment.

    Oxygen gas detector applications
    Tips: how does Mini Portable Oxygen (O2) Gas Detector work?

    1. Sensor Technology: Portable O2 gas detectors rely on electrochemical sensors or optical sensors to measure oxygen concentrations. Electrochemical sensors are the most common type used in these devices. They work based on the electrochemical reaction that occurs when oxygen molecules interact with a chemical electrode. This reaction generates a small electrical current, which is proportional to the concentration of oxygen in the environment.

    2. Gas Detection Principle: The fundamental principle behind the operation of a portable O2 gas detector is based on the fact that the electrical current generated in the sensor is directly related to the number of oxygen molecules that come into contact with the sensor's surface. As the concentration of oxygen increases or decreases, the electrical current produced by the sensor also changes accordingly.

    3. Display and Alarming: Portable O2 gas detectors are equipped with a display that typically shows the oxygen concentration as a percentage (e.g., 20.9% for normal atmospheric oxygen levels). The detector continuously monitors the oxygen levels and displays real-time readings. When the detected oxygen level falls outside the pre-set safe range, the device triggers an alarm, which can be visual, audible, or both, to alert the user to potential safety hazards.

    4. Safe Thresholds: These detectors are often programmed with two critical threshold levels:

    • Low Oxygen Alarm: This alarm activates when oxygen levels drop below a safe level, indicating the possibility of oxygen deficiency, which can be life-threatening in certain situations.
    • High Oxygen Alarm: This alarm triggers when oxygen levels rise above the safe range, indicating oxygen enrichment, which can also pose health and safety risks.

    5. Calibration: To ensure the accuracy of the readings, portable O2 gas detectors require periodic calibration. Calibration involves exposing the detector to a known concentration of oxygen, usually in a controlled calibration gas environment. The detector's internal settings are then adjusted to match the known concentration, ensuring that the device provides accurate readings.

    Existing reviews of Oxygen (O2) Gas Meter, 0 to 25%/30% VOL
    Easy to carry and operate
    This small oxygen detector is very practical. It is small and easy to carry. It has only two buttons and is easy to operate. There is also a video to teach me how to operate it. The service is very good.
    From: Canaka | Date: 19/10/2023
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