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{"title":"H2S-B4 High Resolution Hydrogen Sulfide Sensor (H2S sensor) Is Used To Monitor","imgUrl":"https:\/\/img.chinax.com\/nimg\/93\/a5\/26fe289e29911b4d52b464ddf558-200x200-1\/h2s_b4_high_resolution_hydrogen_sulfide_sensor_28h2s_sensor_29_is_used_to_monitor_trace_hydrogen_sulfide_in_air_quality.jpg","attrs":{"Brand Name":"alphasense","Model Number":"H2S-B4","Place of Origin":"Britain","Minimum Order Quantity":"1"}}
{"title":"NO2-A1 Nitrogen Dioxide Sensor (Portable NO2 Sensor) For Nitrogen Dioxide","imgUrl":"https:\/\/img.chinax.com\/nimg\/8e\/e9\/481f097eb9ce0c098d1848168c96-200x200-1\/no2_a1_nitrogen_dioxide_sensor_28portable_no2_sensor_29_for_nitrogen_dioxide_portable_monitor.jpg","attrs":{"Brand Name":"alphasense","Model Number":"NO2-A1","Place of Origin":"Britain","Minimum Order Quantity":"1"}}
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The DS4-O3 is a high-performance gas sensor specifically designed to detect ozone (O₃) concentrations. Utilizing advanced electrochemical sensing technology, it delivers high sensitivity, rapid response, and excellent selectivity, making it ideal for industrial safety, environmental monitoring, and medical equipment applications.
2. Key Features:
Target Gas: Ozone (O₃), optimized for precise detection in environmental or industrial processes.
Detection Principle: Electrochemical sensing. Ozone undergoes redox reactions on the electrode surface, generating a current signal proportional to its concentration—combining high accuracy with low power consumption.
Measurement Range: 0–1 ppm (standard); customizable up to 0–5 ppm or higher (specify model).
Sensitivity: Detects ozone concentrations as low as 0.01 ppm (exact value subject to testing).
Response Time (T90): ≤ 30 seconds (time from gas exposure to stable output).
Recovery Time: ≤ 60 seconds (time to return to baseline after gas removal).
3. Working Principle:
The DS4-O3 employs a three-electrode electrochemical cell, comprising:
Working Electrode (WE): Ozone diffuses through a permeable membrane and undergoes oxidation, releasing electrons to generate a current.
Counter Electrode (CE): Completes the redox reaction to maintain circuit balance.
Reference Electrode (RE): Provides a stable potential reference.
The current magnitude is directly proportional to the ozone concentration, enabling precise quantification.
4. Typical Applications:
Industrial Safety:
Leak detection in ozone generators/disinfection systems (e.g., water treatment, food processing).
Safety monitoring in semiconductor manufacturing and laboratories.
Environmental Monitoring:
Outdoor air quality stations for ozone pollution tracking (complies with environmental standards).
Indoor ozone emission monitoring in air purifiers (e.g., negative ionizers, UV photolysis devices).
Required every 6 months (or per usage frequency); use certified ozone gas (e.g., 0.1 ppm or 0.5 ppm) for standardization.
Calibrate in stable temperature/humidity conditions to avoid environmental interference.
Cross-Sensitivity:
May respond slightly to other oxidizing gases (e.g., Cl₂, NO₂); implement algorithms or multi-sensor fusion to mitigate interference.
Environmental Adaptation:
Avoid high temperatures, humidity, or corrosive environments (e.g., acid/base fumes); prolonged exposure may reduce lifespan or accuracy.
In dusty environments, install a dust filter to prevent membrane clogging.
Storage:
Unused sensors should be stored in a dry, cool place (0–25°C, <60% RH) to prevent "poisoning" from prolonged ozone exposure.
Operating Humidity
10% to 90% RH
Output Signal
Analog voltage (0.1–3V)
Power Supply
3.3V DC or 5V DC
Lifespan
2–3 years
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Trading Company
Year Established:
2006
Total Annual:
900000-1000000
Employee Number:
50~80
Ecer Certification：
Verified Supplier
Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph... Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph...
