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CO2 sensor module ELT Sensor - D-400

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• Non-Dispersive Infrared (NDIR) Dual Channel Technology to measure CO₂ levels.
• Excellent compensation of Temperature Effect on CO2 concentration.
• Output mode : TTL-UART, (Option : I2C, AVO, PWM).
• Gold-plated sensor provides long-term calibration stability.

Model Number: D-400
Data Sheet:

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Product Specification

D-400 ELT Sensor General:

D-400 is the smallest Dual CO2 sensor modulein the world.

Its Persistent Stability and Temperature Effect Resistance are much favored in warehouse, greenhouse, hospitals etc. besides the small size and consistent accuracy through the life cycle.

D-400 ELT Sensor Features:

• Non-Dispersive Infrared (NDIR) Dual Channel Technology to measure CO₂ levels.

• Excellent compensation of Temperature Effect on CO2 concentration.

• Output mode : TTL-UART, (Option : I2C, AVO, PWM).

• Gold-plated sensor provides long-term calibration stability.

• Two kinds of Manual Calibration are executable.(Calibration with 0ppm or 400ppm CO2 gas)

• Size : 50mmx69mmx26mm

• Weight : 30 grams

D-400 ELT Sensor Specifications:

	D-400
Sensing Method	NDIR (Non-dispersive Infrared) / Dual Type
Dimensions	50mm×69mm×26mm (30g)
Measurement Range	0 ~ 2,000ppm (3,000/5,000/10,000ppm, 2%/3%/5% models are available)
Accuracy	± 30ppm ± 3% of reading (±300ppm ±3% of reading – 2%/3%/5% models)
Operating Temperature Range	-20℃ ~ 50℃
Operating Temperature Range	-30℃ ~ 70℃
Operating Humidity Range	0 ~ 95% RH (Non-condensing)
Input Power	4.75V ~ 12V
Power Consumption	Normal : 20㎃ / Max : 270㎃(5V), 273mA(12V)
Response Time	150 Seconds / 90 Seconds
Sampling Interval	3 Seconds
Output	UART- 38,400BPS, 8bit, No parity, 1 stop bit TTL Level I2C => Slave PWM (Option)
Output	Analog Voltage (Option) => VDC 0.5 to 3.0V(linear output)