| Model No. | MH-Z19B |
| Detection Gas | CO2 |
| Working voltage | 4.5 ~ 5.5 V DC |
| Average current | < 20mA (@5V power supply) |
| Peak current | 150mA (@5V power supply) |
| Interface level | 3.3 V (Compatible with 5V) |
| Detection Range | 0~2000/5000/10000ppm(optional) |
| Output signal | Serial Port (UART) (TTL level 3.3V) |
| PWM | |
| Preheat time | 3 min |
| Response Time | T90 < 120 s |
| Working temperature | -10 ~ 50 ℃ |
| Working humidity | 0 ~ 95% RH (No condensation) |
| Weight | 5 g |
| Lifespan | > 5 years |
After sale instructions
