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Application: HVAC,building ventilation system, indoor air quality monitoring system
MH-Z19B NDIR infrared gas module is a common type, small size sensor, using non-dispersive infrared (NDIR) principle to detect the existence of CO 2 in the air, with good selectivity, non-oxygen dependent and long life. Built-in temperature compensation; and it has UART output and PWM output. It is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design.
- Chamber is gold plated,
- water-proof and anti-corrosion
- High sensitivity,
- low power consumption
- Good stability
- Temperature compensation, excellent linear output
- Multiple output modes: UART, PWM
- Long lifespan
- Anti-water vapor interference, anti-poisoning
- HVAC refrigeration
- Indoor air quality monitoring.
- Smart home appliances
- Air cleaner
Main technical parameters:
|Working voltage||4.5~ 5.5 V DC|
|Average current||< 60mA(@5V)|
|Peak current||150mA (@5V)|
|Interface level||3.3 V(Compatible with 5V)|
|Measuring range||refer to Table 2|
UART(TTL interface level 3.3V)
|Preheat time||3 min|
|Response Time||T90< 120 s|
0 ~ 50 ℃
|Working humidity||0~ 90% RH (No condensation)|
|Dimension||33 mm×20 mm×9 mm (L×W×H)|
|Lifespan||> 5 years|
We provide Worldwide Shipping by DHL, Fedex, Standard shipping (China Post e-Packet) and some other shipping ways on ALL ITEMS!2. SERVICE TRANSIT TIME is provided by the carrier.
- Reference Delivery time (working days):
- DHL:3-7 days
- Fedex:3-7 days
- China Post e-Packet : 15-35 days
Transit times may vary, particularly during the holiday season.
We suggest you choose Expedited Shipping(DHL or FedEx) to ensure the products reach your home fast & safety.3. ORDERS PROCESSED TIMELY after the payment verification.
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