1-Wire Carbon Dioxide Sensor TSM400-1-CP

Carbon dioxide, often denoted as CO2, is a colorless gas vital to Earth's atmosphere. The TSM400-1-CP is a versatile sensor compatible with the 1-Wire protocol, designed to measure carbon dioxide concentration and atmospheric pressure. Both fundamental sensor components for CO2 and pressure are digital, ensuring precise measurements and long-term stability.

The atmospheric pressure sensing element comes factory calibrated, eliminating the need for lifetime recalibration. Self-calibration is available for carbon dioxide measurements, triggered when the sensor is exposed to fresh air containing around 400 ppm CO2.

The TSH400-1-CP is housed within a slim plastic enclosure with a suitable bottom part for mounting on standard flush-mounted or cavity wall boxes (ø68mm, with installation openings at 61mm).

Elevated carbon dioxide levels can lead to reduced productivity, increased blood pressure, headaches, and even life-threatening conditions in high concentrations. Therefore, monitoring and controlling carbon dioxide levels are crucial for offices, workplaces, schools, and public buildings.

Features:

• LED indicator for communication status
• Exceptional long-term stability
• Self-calibration for carbon dioxide measurements in fresh air
• Firmware updates via the interface
• Low current consumption
• Unique 64-bit serial numbers for multi-sensor compatibility

Applications:

• Environmental quality assessment in office spaces
• Monitoring carbon dioxide pollution
• Indoor air quality systems
• Safety industries

This 1-Wire carbon dioxide sensor is compatible with the following devices:

• Temperature and humidity data logger TCW210-TH
• Ethernet IO module TCW241
• Ethernet data logger TCW220
• 4G LTE universal IO module TCG140-4

Technical Properties:

• Physical characteristics
  
• Dimensions: 81 x 81 x 30 mm
  
• Weight: 66 g
  
• Environmental limits
  
• Operating temperature range: -20 to 60°C
  
• Operating relative humidity range: 5 to 95% (non-condensing)
  
• Storage temperature range: -20 to 60°C
  
• Storage relative humidity range: 5 to 95% (non-condensing)
  
• Ingress protection: IP20
  
• Power requirements
  
• Operating voltage range (including -15/+20% according to IEC 62368-1): 4.5 to 26 VDC
  
• Current consumption: 25 mA@5VDC (Peak: 150 mA@5VDC)
  
• CO2 measurements
  
• Range: 400 to 5000 ppm
  
• Accuracy: ± (40 ppm + 5 %)
  
• Resolution: 1 ppm
  
• Calibration: Manual
  
• Pressure measurements
  
• Range: 10 to 1200 hPa
  
• Accuracy (min): ±1.5 (25°C, 750 hPa)
  
• Accuracy (max): ±2.5 (-20°C to + 85°C, 300 to 1100 hPa)
  
• Resolution: 1 hPa
  
• Warranty
  
• Warranty period: 3 years