Product Overview
The DS4 intelligent NO2 sensor from Germany's EC Sense utilizes reliable printed solid polymer electrochemical sensor technology, making it an industrial-grade smart gas sensor.Compact structure with small footprint, featuring a high-performance microprocessor, a high-precision analog-to-digital converter, and intelligent algorithm design, easily integrates into the Internet of Things and other monitoring systems, widely used in industrial, commercial, residential, and medical fields.
Product Features
Standard Industrial Dimensions
Standard industrial 4 series dimensions, 20 x 16.6mm cylindrical housing, allowing for easy iteration design of new products. Suitable for fixed gas detectors and portable measuring instruments, it saves costs on housing design for new product upgrades. Standard three-electrode pin size (VCC_power positive, GND_power negative, IO_data transmit/receive).
Life span and performance testing
Intelligent gas sensor performance and lifespan self-check, performing regular self-diagnostics of lifespan and performance indicators regardless of the presence of measured gas, and outputting warning signals to prompt sensor maintenance or replacement. This feature provides a reliable basis for intelligent instrument design, endowing gas detection instruments with safety, reliability, and remote maintenance capabilities. Users can obtain fault information such as normal operation of the sensor, weakened sensor performance, sensor failure, or detachment through commands, providing early warnings for sensor anomalies and enhancing safety guarantees.
Factory Pre-Calibration
Each DS4 intelligent gas sensor undergoes professional gas calibration at the factory, with calibration information stored in the product's internal chip. Users can use the sensor directly without the need for further gas calibration. The factory calibration, utilizing diffused gas calibration and simulated environmental climate calibration methods, is more akin to the actual application environment at the user's site, enhancing the accuracy of data obtained from diffusion measurements in gas detection instruments (when the gas detection instrument uses a pump suction measurement method, a secondary calibration is required based on the design parameters of the instrument system).
Ready to use without preheating
Intelligent hardware design maintains gas sensors in an operational state even without power, ensuring immediate gas monitoring upon powering up anywhere, anytime. Whether in IoT applications or battery-powered scenarios, this design prioritizes energy efficiency and low power consumption, eliminating concerns about long preheating wait times and slow data acquisition.
User-Defined Encryption Code Feature
Users can customize their own user codes for identification on the instrument. When inserting other types, the instrument can automatically verify if the user code is correct. For incorrect user codes, the instrument will display an error prompt to remind the user to insert the correct sensor.
Low-power sleep mode feature
The sensor features a sleep mode, allowing users to customize sleep and wake-up modes, suitable for low-power batteries or IoT applications.
Self-identification feature
The DS4 sensor outputs identity information such as gas type and detection range, which facilitates the design of self-identification features for greater flexibility.
Simple and easy-to-use UART digital output
The DS4 sensor outputs signals in UART 3.3V half-duplex single bus mode, eliminating the need for complex communication protocols. It directly outputs the gas concentration value, making it flexible, simple, and quick for secondary development application design.
Convenient maintenance
Plug-and-play, with hot-pluggable capability, an open calibration protocol, supporting secondary offline calibration for after-sales service, and a one-click factory reset design. Plug-and-play functionality achieves offline calibration, eliminating the need to bring hazardous gases into the testing environment for instrument aeration calibration, thus avoiding safety risks and environmental contamination, making maintenance safer, more convenient, and simpler.
Structural illustration

Technical Specifications































