Overview
BL27D-KG is a general-purpose and miniaturization electrochemical carbon monoxide detection module. It utilizes electrochemical principle to detect CO in air which makes the module with high selectivity and stability. It is a combination of mature electrochemical detection principle and sophisticated circuit design.
Key Features
- Serial port output, PMW output
- Built-in temperature sensor, making accuracy higher in the requested range.
Applications
- Development of household CO gas alarm
- Detection of CO concentration at residential occasions
Technical Specifications
| Model No. | BL27D-KG |
| Detection gas | Carbon Monoxide(CO gas) |
| Interfering gases | Alcohol, etc. |
| Output data | UART output |
| Output way | PWM output |
| Working voltage | 5V DC |
| Preheating time | 30 seconds |
| Response time | ≤30 seconds |
| Recovery time | ≤30 seconds |
| Detection range | 0~500ppm |
| Solution | 1ppm |
| Working temperature | -10°C~55°C |
| Working humidity | 15%RH-90%RH(no condensation) |
| Storage temperature | -10°C~55°C |
| Life span | 2 years(in air) |





