MH-Z14A Infrared CO2 Module - (AD51961)

Description:

The MH-Z14A NDIR infrared gas module is a common small-sized sensor, which uses the non-dispersive infrared (NDIR) principle to detect the existence of CO2 in the air, with good selectivity, oxygen-independent, and long life. The built-in temperature sensor can compensate for temperature; it has digital output and analog voltage output. It is developed by the close integration of infrared absorption gas detection technology, precision optical circuit design, and superior circuit design.

Features:

- High sensitivity, high resolution.

- Low power consumption.

- Output mode: UART and PWM wave.

- Temperature compensation, excellent linear output.

- Good stability

- Long lifespan.

- Anti-interference from water vapor.

- Working voltage: 3.6 V ~ 5.5V DC

- Average current: <18 mA

- Interface level: 3.3 V

- Measurement range: 0 ~ 5% VOL optional

- Output signal: PWM UART

- Preheat time: 3 minutes

- Response time: T90 <60s

- Working temperature: 0℃ ~ 50℃

- Working humidity: 0 ~ 95% RH

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