Overview
The BL51-HIGK electrochemical alcohol module is a general-purpose, miniaturized module. The electrochemical principle is used to detect the presence of TVOC in the air, which has good selectivity and stability. Built- in temperature sensor for temperature compensation; digital output and analog voltage output for easy use. BL51-HIGK is a universal gas module designed and manufactured by combining proven electrochemical detection technology with sophisticated circuit design.
Key Features
- High sensitivity, high resolution, low power consumption, long lifespan UART and analog voltage output
- Good stability and excellent anti-interference, temperature compensation, good linearity.
Applications
Alcohol detector, vehicle-mounted detector
Technical Specifications
| Model No. | BL51-HIGK |
| Target Gas | TVOC |
| Interference gases | CO &etc gas |
| Output Data | DAC (0.4~2V voltage is corresponding to 0~full scale) |
| UART Output (3V TTL electrical level) | |
| Working Voltage | 3.7~5.5V |
| Preheating time | ≤3 min |
| Response time | ≤60 sec |
| Recovery time | ≤60 sec |
| Detection Range | 0~5 ppm |
| Resolution | ≤0.01ppm |
| Operating Environment | Temp.: 0~50°C |
| Humidity.: 15%-90%RH(no condensation) | |
| Storage Temp. | 0~25°C |
| Working Life | 3 years (in air) |





