Electrochemical carbon monoxide gas sensor

Product catalog summary

Product Description
The M1003Y-CO is a compact electrochemical carbon monoxide detection module known for its selectivity and stability. It features a built-in temperature sensor for compensation and offers both digital and analog outputs. The module integrates mature electrochemical detection technology with advanced circuit design, making it suitable for various applications.

Module Features
- High sensitivity and resolution
- Low power consumption
- Long service life
- UART data output
- High stability and anti-interference
- Temperature compensation

Main Applications
The module is ideal for portable meters, air quality monitoring equipment, air purifiers, ventilation systems, air conditioning, and smart home devices.

Technical Specifications
- Detects carbon monoxide
- UART output (3.3V level)
- Operating voltage: 3.7V to 5.5V
- Preheat time: ≤3 minutes
- Response time: ≤30 seconds
- Recovery time: ≤60 seconds
- Detection range: 0 to 1000 ppm
- Resolution: ≤1 ppm
- Operating temperature: -20℃ to 60℃
- Working humidity: 15%RH to 90%RH (no condensation)
- Storage temperature: 0℃ to 25℃
- Service life: 5 years (0℃ to 35℃ in air)
- Module size: 17.7mm x 17.8mm x 8mm

Pin Definition
- Pin1: Vin (3.7V to 5.5V)
- Pin2: UART (TXD) 0-3V data output
- Pin3: UART (RXD) 0-3V data input
- Pin4: GND
- Pin5 to Pin11: Reserved

Communication Protocol
- Baud rate: 9600
- Data bit: 8 bit
- Stop bit: 1 bit
- No check digit
- Communication modes: Active uploading and question-answering
- Active upload sends concentration value every 1 second
- Command format for switching modes and reading concentrations provided

Checksum Calculation
Checksum is calculated by negating the sum of bytes 1 to 7 and adding 1.

Precautions
- Avoid electrolyte leakage and disassembly
- Prevent contact with organic solvents, paints, chemicals, oils, and high-concentration gases
- Do not encapsulate with resin or immerse in oxygen-free environments
- Avoid long-term exposure to corrosive gases
- Ensure clean atmosphere for zero-point measurement
- Avoid blocking or polluting the sensor intake
- Do not open or damage the waterproof membrane
- Avoid excessive impact or shaking
- Do not use if the shell is damaged
- Store with working and counter electrodes short-circuited
- Avoid encapsulating with adhesives curing above 80℃
- Do not store in high concentration alkaline gas environments

Catalog excerpts

Electrochemical carbon monoxide gas sensor-1

Product description The M1003Y-CO electrochemical carbon monoxide module is a general-purpose, miniaturized module. The detection of CO in the air by the principle of electrochemistry has good selectivity and stability. The built-in temperature sensor can perform temperature compensation; it also has a digital output and an analogue voltage output mode for easy use. M1003Y-CO is a combination of mature electrochemical detection technology and sophisticated circuit design Tightly integrated, designed and manufactured universal gas module. Module features High sensitivity, high resolution, low power consumption, long service life Provide UART data output method High stability, excellent anti-interference ability, temperature compensation, excellent linear output Main application Portable meters, air quality monitoring equipment, air purifiers, fresh air ventilation systems, air conditioning, smart home equipment and other places. Technical index

Open the catalog to page 1

Electrochemical carbon monoxide gas sensor-3

In question and answer mode, the command format for reading the concentration is as follows: The reference routine is as follows: * Function name: unsigned char FucCheckSum (uchar *i,ucharln) *Function description: Sum check (take the sum of 1\2\3\4\5\6\7 of the sending and receiving protocol to invert +1) * Function description: add the elements 1-the penultimate element of the array and invert +1 (the number of elements must be greater than 2) unsigned char FucCheckSum (unsigned char *i, unsigned char ln) { unsigned char j,tempq=0; i+=1; for(j=0;j<(ln-2);j++) { tempq+=*i; i++; } tempq=(~tempq)+1;...

Open the catalog to page 3

Electrochemical carbon monoxide gas sensor-4

Precautions Electrolyte leakage will cause damage, please do not disassemble the sensor at will; The sensor avoids contact with organic solvents (including silicone rubber and other adhesives), paints, chemicals, oils and high-concentration gases; All electrochemical sensors cannot be completely encapsulated with resin materials, nor can they be immersed in an oxygen-free environment, otherwise the performance of the sensors will be damaged; All electrochemical sensors cannot be used for a long time in an environment containing corrosive gas, which will damage the sensor; When measuring the gas...

Open the catalog to page 4