CO2 sensor measures levels up to 5,000 ppm

4th September 2023
Mick Elliott

Mouser Electronics is now shipping the T6743-40K-E Automotive CO2 Sensor from Amphenol Advanced Sensors.

This is a nondispersive infrared (NDIR) CO2 sensor that implements a single-channel diffusion sampling method for automotive heating, ventilation and air conditioning (HVAC) applications, including automatic fresh air control and safety sensing for CO2 refrigerants. The CO2 sensor can also provide an important safety feature by monitoring parked vehicles and triggering an alarm if human or pet occupation is detected.

It can be used to detect in-cabin CO2 levels to prevent driver drowsiness. The device can also be used to reduce variations in heating and cooling in-cabin through demand control ventilation (DCV).

Using Amphenol Advanced Sensors' CO2-based ventilation control, the air is continually monitored, and the influx of outside air is taken into account, eliminating the need for the air conditioning system to bring air in mechanically.

The automotive sensor features an operating temperature range of -40°C to +90°C.

Each sensor is factory calibrated to measure CO2 levels up to 5,000 ppm. The T6743-40K-E sensors offer a 5s second sample rate in active mode and a 15s sample rate in low power mode.

Along with the patented ABC Logic lifetime calibration warranty, its low power consumption, compact design and simple product integration make the T6743-40K-E an ideal gas-sensing solution.

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