Features:
l Small and compact, easy to carry and store
l Low power consumption
l High precision
l Multi-interface output: Each sensor has multiple output interfaces such as UART, DAC, PWM, etc., which can be individually calibrated. Can easily connect with users
l Long lasting
l Application: Indoor air quality monitoring, HVAC system, fresh air equipment, air purification equipment, automatic control of fans and windows
Specifications:
l Gas Detection: Carbon Dioxide
l Detection range: 400~2000ppm (400~10000ppm optional)
l Working principle: Non-dispersive infrared (NDIR)
l Working voltage: 4.5~5.5V DC
l Working current: 120mA peak value, 20mA average
l Accuracy: ±(50ppm+5% reading value)
l Warm-up time: 3min
l Response time: T90<120s
l Detection interval: 2s
l Working conditions: 0~50℃/0~90%RH (no condensation)
l Storage conditions: -20~60℃/0~90%RH (no condensation)
l Communication interface: UART level 3.3V PMW Analog output interface Vout
l Size: 39 x 20 x9.2 (mm)
l Weight: about 5g
l Lifespan: >5 years
Package Include:
l 1 x Gas Sensor
Note:
l This product is an electrostatic sensitive component. In the process of assembling and applying this product, it is recommended to use electrostatic protection equipment
l The accuracy described in the specification is the factory accuracy. After long-term storage, calibration is required to achieve the factory accuracy
l During the process of welding, installation, and use of the sensor, the gold-plated plastic cavity should be protected from pressure in any direction
l If the sensor needs to be placed in a small space, this space should be well ventilated, especially the two diffusion windows should be in a well-ventilated position
l The sensor should be kept away from heat sources and avoid direct sunlight or other heat radiation
l The sensor should be calibrated regularly, and the calibration period is recommended to be less than or equal to 6 months.
l Do not use the sensor for a long time in an environment with high dust density
l In order to ensure that the sensor can work normally, the power supply voltage must be kept in the range of 4.5V~5.5V DC, and the power supply current must be no less than 150mA. If it is not in this range, it may cause the sensor to malfunction, the sensor output concentration is low or the sensor cannot work normally
l When manually calibrating the zero point or sending a command to calibrate the zero point, you must work continuously for more than 20 minutes in a stable gas environment (400ppm)
