Overview
NT-B27 NDIR Infrared gas module is a common type, small size sensor, using non-dispersive infrared (NDIR) principle to detect the existence of CO2 in the air, with good selectivity, non-oxygen dependent and long life. Built-in temperature compensation; and it has digital output and PWM wave output. This common type infrared gas sensor is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design.
Key Features
- High sensitivity
- Low power consumption
- Good stability
- Temperature compensation
- Excellent linear output
- Output method: UART, PWM
- Long lifespan
- Anti-water vapor interference, no poisoning
Applications
- Animal husbandry production
- Educational instruments
- Indoor air quality monitoring equipment
- HVAC equipment
- Air purification equipment
Technical Specifications
| Model No. | NT-B27 |
| Detection gas | CO2 gas |
| Working Voltage | DC(5.0±0.1V) |
| Average Current | <85mA (@5V powersupply) |
| Peak Current | 150mA (@5V powersupply) |
| Interface Level | 3.3 V (5V compatible) |
| Measuring Range | 0~50000ppm range selectable ( max 150000ppm can be extended) |
| Output Signal | Serial Port (UART )(TTL 3.3V) |
| PWM | |
| Preheat Time | 10s |
| Response Time | T90 < 30s |
| Working Temperature | -10°C ~ 50°C |
| Working Humidity | 0~95%RH (no condensation) |
| Storage Temperature | -20°C ~ 60°C |
| Weight | <21 g |
| Life span | >10 years |
