Product Details
DTS-4O2 Smart Digital Oxygen Gas Sensor Module For Industrial
Safety Monitoring
Product Overview:
The DTS4 - O2 smart digital gas sensor module is based on printed
solid - state polymer electrochemical sensing technology. It is an
industrial - grade smart gas sensor with a compact structure
design, integrating a high - performance microprocessor, a high -
precision analog - to - digital converter, and intelligent
algorithm design. It can be easily integrated into the Internet of
Things and other monitoring systems, and is widely used in
industrial, commercial, civil and medical fields.
Technical Principles
It uses three electrodes made of precious metals. When the gas
diffuses into the sensor through the porous membrane, it will
undergo oxidation or reduction, triggering an electrochemical
reaction, generating a current proportional to the gas
concentration, so as to realize the detection of gas concentration.
Product Features:
- High - precision and reliable measurement: Each DTS4 smart gas
sensor has been professionally calibrated for gas in the factory,
and the calibration information is stored in the internal chip of
the product. The detection range of DS4 - O2 can reach 0 - 30% vol,
the accuracy is < ± 1% FS, and the resolution can reach 0.01%
vol.
- Fast response: The response time T90 < 20s, which can quickly
and timely capture the change of gas concentration.
- Strong environmental adaptability: The working temperature range is
- 40℃ to + 55℃, and the working humidity range is 15 - 95% RH (non
- condensing), which can work normally in high - humidity and other
harsh environments. The solidified design of the electrolyte avoids
the risk of liquid leakage caused by high - humidity environment or
material aging.
- Convenient integration and use: It adopts the output signal of UART
3.3V half - duplex single - bus mode, which directly outputs the
gas concentration value without cumbersome communication protocols,
making the secondary development and application design flexible,
simple and fast. It also has functions such as plug - and - play,
hot - swappable, and can output identity information such as gas
type and detection range, which is convenient for the design of
self - identification function.
- Low power consumption and long - life: The power consumption is ≤
5mW @ 5V DC, and the expected life of the sensor in the air is >
5 years. It also has a sleep function, and users can customize the
sleep and wake - up modes, which is suitable for low - power
battery or IoT applications.
Product use:
- Industrial Safety Monitoring: It is used to monitor the oxygen
concentration in industrial environments such as mines, tunnels and
subway tunnels to ensure the safety of workers. In these
environments, if the oxygen concentration is too low or too high,
it may pose a threat to the health and safety of workers, and the
sensor can detect oxygen concentration changes in time to provide
early - warning.
- Industrial Process Control: In some chemical reactions and
combustion processes, monitoring the oxygen concentration can help
optimize the process. For example, in the fuel cell system, by
monitoring the oxygen concentration, the efficiency of the fuel
cell can be ensured, and the reaction conditions can be controlled
in the chemical and pharmaceutical industries to ensure production
safety and product quality.
- Environmental Monitoring: It can be used to detect the oxygen level
in the atmosphere to assist in assessing air quality, which is of
great significance for environmental protection and ecological
research.
- Civil Use and Smart Home: As an important part of smart homes and
smart cities, it can provide a more intelligent, comfortable and
safe living environment. For example, it can monitor the oxygen
concentration in the room to ensure the air quality in the living
environment and help people create a more comfortable living space.
- Medical Field: It can be used in medical devices such as
ventilators and anesthesia equipment for oxygen concentration
detection to ensure the accuracy of oxygen supply and help doctors
better treat patients.
- Food Industry: By monitoring the oxygen level in the food packaging
environment, the shelf - life of food can be extended, and the
quality and safety of food can be ensured.
- Grain Storage: It is suitable for the oxygen -
controlled/ventilation control scenarios of high - temperature and
high - humidity grain storage. By monitoring the oxygen
concentration in the grain storage, combined with the intelligent
fan control system, the closed - loop control of the automatic
ventilation and air - conditioning grain storage strategy can be
realized to prevent the grain from heating and mildewing.
Error Range | ± 5% F.S |
Power - on Stabilization Time | < 15min |
Output Signal | UART 3.3V half - duplex single - bus, baud rate 9600, data bit: 8,
stop bit: 1, parity bit: none |
Operating Voltage | 3.3 to 12V DC, recommended 5V DC |
Operating Current | 0.8mA @ 5V DC |
Peak Current | 1.1mA @ 5V DC |
Sleep Mode Current | 0.5mA @ 5V DC |
Power Consumption | ≤ 5mW @ 5V DC |
Long - term Sensitivity Drift | < 5% / year |
Expected Sensor Life | > 5 years in air |
Warranty Period | 12 months from the date of shipment |
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.

