SEK-STC31 Multiple Function Sensor Development Tools STC31 Evaluation Kit with STC31 on Flex PCB and SHTC3 plus the SensorBridge Cable

The Most Effective Way to Measure High CO₂ Concentrations

The STC31 is a chip-sized gas concentration sensor for high range, accurate CO₂ measurements designed for high-volume production. The sensor is based on a revolutionized thermal conductivity measurement principle, which results in superior repeatability and long-term stability. This makes the STC31 the perfect choice for applications where reliability is key. Thermal conductivity technology has an ultra-low power consumption, even compared to low-power optical sensor. This makes it the ideal choice for battery operated applications, delivering top-performance at an absolute minimal power budget.

Applications

• •  Cold chain logistics
• •  Controlled atmosphere food transportation
• •  Datalogging

Features and Benefits

• •  Small chip-sized package: 3.5mm x 3.0mm x 1.0mm
• •  Interface: I²C
• •  Supply voltage range: 2.7 V to 5.5 V
• •  Power consumption (@1 measurement per minute): 15 µW
• •  Calibrated gas concentration and temperature output
• •  Gas concentration measurement range: 0 to 100 vol%
• •  Gas concentration accuracy: < 0.5 vol% (±3% of m.v.)
• •  T measurement range: -20 to 85 °C
• •  T accuracy:
• •  0.5 °C (10 °C to 50 °C)
• •  1.5 °C (-20 °C to 85 °C)