Product Details
WDK-07 Oxygen Gas Sensor For Medical Fields Such As Operating Rooms
Intensive Care Units Emergency Departments
Working Principle:
It usually adopts an electrochemical sensing principle. The oxygen
in the measured gas diffuses into the sensor through the diffusion
layer and reacts at the working electrode, generating an electric
current proportional to the oxygen concentration. This current
signal is processed by the internal circuit of the sensor to obtain
the oxygen concentration value.
Product Features:
- High - precision Measurement: Using high - quality sensing
elements, it can provide accurate oxygen concentration measurement
results, with an accuracy of ±1% F.S., which can meet the high -
precision requirements of medical equipment.
- Good Temperature Adaptability: It can work stably in the
temperature range of -20°C - +60°C, ensuring the reliability of
measurement in different environmental temperatures.
- Long Service Life: The sensor has a service life of ≥2 years, which
reduces the frequency of replacement and maintenance costs.
- Simple Installation and Operation: The installation is very simple,
and the operation interface is user - friendly. Even medical staff
who use it for the first time can quickly get started.
Applications:
The WDK-07 oxygen gas sensor is mainly used in medical fields, such
as operating rooms, intensive care units, emergency departments,
and home care. It is used to monitor the oxygen concentration in
real - time during surgery, continuously monitor the oxygen of
critically ill patients, quickly and accurately measure the oxygen
concentration during emergency treatment, and provide a reliable
monitoring tool for patients who need long - term oxygen
inhalation.
Target Gas | Oxygen (O₂) |
Measuring Range | 0% - 100% VOL (O₂) |
Measurement Accuracy | ±1% Full Scale (F.S.) |
Response Time (T90) | ≤ 20 seconds (under standard conditions: 25℃, 1 atmospheric
pressure, 50% RH) |
Operating Temperature Range | -20℃ ~ +60℃ |
Operating Humidity Range | 15% ~ 90% RH (non-condensing; typical industrial/environmental
humidity adaptability) |
Operating Pressure Range | 86 kPa ~ 106 kPa (atmospheric pressure ±10%) |
Output Signal | Analog signal (e.g., 4 - 20 mA DC / 0 - 5 V DC; optimized for
medical equipment signal integration) |
Power Supply | 12 - 24 V DC (compatible with common medical device power systems) |
Sensor Lifetime | ≥ 2 years (under normal medical use conditions: clean air, stable
temperature/humidity) |
Zero Drift | ≤ ±0.3% F.S. per year (in clean air at 25℃; ensures long-term
measurement stability) |
Sensitivity Drift | ≤ ±1.5% F.S. per year (in clean air at 25℃; minimizes calibration
frequency) |
Protection Rating | IP65 (dust-tight and protected against low-pressure water jets,
suitable for medical environments) |
Compatibility | Designed for integration with medical devices (anesthesia machines,
ventilators, oxygen monitors) |
Calibration Requirement | Factory pre-calibrated; recommended re-calibration every 6 - 12
months for medical use |
Physical Dimensions (Typical) | Customized for medical device installation (e.g., 30 mm × 25 mm ×
15 mm; subject to actual model) |
Company Profile
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, photodiodes, Japan FIGARO, UK
CITY, ALPHASENSE full range of semiconductors, catalytic,
electrochemical gas sensors, French HUMIREL/MEAS humidity sensors
and other international well-known companies authorized agents or
distributors, to provide customers with product information,
products Solutions, product selection, supply guarantee and
logistics services, etc.

