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Infrared CO2 Sensor (0-5000 ppm) - MH-Z19B

39-00011002
MH-Z19B
Part NumberMH-Z19B
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MH-Z19B carbon dioxide gas sensor (here in after referred to as the sensor) is a general-purpose smart small-scale sensor that uses non-dispersive infrared (NDIR) principle to detect the presence of CO2 in the air, with good selectivity and anaerobic Gas dependence, long life and other characteristics; built-in temperature compensation; at the same time with serial output, analog output and PWM output, easy to use.

The sensor is a high-performance sensor that combines mature infrared absorption gas detection technology with precise optical path design and sophisticated circuit design.

Application:

  • HVAC refrigeration equipment
  • Air quality monitoring equipment
  • Fresh air system
  • Air purification equipment
  • Smart home
  • School

  • Vin: Power Positive (Vin)
  • GND: Negative Power Supply (GND)
  • Vo: Analog output
  • PWM: PWM
  • HD: HD (zero for school, low for more than 7 seconds)
  • Rx: UART(RXD) TTL Level Data Input
  • Tx: UART (TXD) TTL level data output
  • Pin 1: Analog Output Vo
  • Pin 2: None
  • Pin 3: Negative Power Supply (GND)
  • Pin 4: Positive Power Supply (Vin)
  • Pin 5: UART(RXD) TTL Level Data Input
  • Pin 6: UART (TXD) TTL Level Data Output
  • Pin 7: None
  • Product model number: MH-Z19B
  • Gas Detection: Carbon Dioxide
  • Supply voltage: 4.5~5.5V DC
  • Average current: <20mA (@5V power supply)
  • Peak current: 150 mA (@5V supply)
  • Interface level: 3.3V (5V compatible)
  • Measurement range: 0~10000ppm can be selected within the range
  • Warm-up time: 3min
  • Response time: T90<120s
  • Working temperature: 0～50°C
  • Operating Humidity: 0 to 95% RH (non-condensing)
  • Gas chamber with gold plating, waterproof and corrosion resistant
  • High sensitivity, low power consumption
  • Excellent stability
  • Temperature compensation, excellent linear output
  • Provides serial (UART), analog (DAC), PWM waveform output methods
  • long lasting
  • Water vapor interference, not poisoning
Part Number
MH-Z19B
Warranty
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G. Weight
0.02kg
Sensor Type
  • Gas
Typical Input Voltage
  • 4.5VDC
  • 5VDC
  • 5.5VDC
Oparating Current
150mA
Interface
  • Analog
  • Digital
Communication Protocol
  • UART
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