TINYCONTROL CO2 concentration sensor, temperature and humidity on I2C for LK3 & LK4

Tinycontrol SCD40

A CO2, temperature and humidity sensor based on the principle of photoacoustic sensing. The sensor board is equipped with an I2C interface.

CO2 measuring range (0-40,000 ppm)

Measurement accuracy: 400-2,000 ppm ±(50 ppm + 5% of reading)

Repeatability: ±10 ppm

Response time: 60 s

Humidity measuring range (0-100% RH)

Accuracy (typ. +15 to +35 °C, 20 ÷ 65 %RH): ±6% RH

Accuracy (-10 to +60 °C, 0 to 100 %RH): ±9% RH

Repeatability: ±0.4% RH

Response time: 90 s

Temperature measuring range (-10 to +60 °C)

Accuracy (typ. +15 to +35 °C): ±0.8 °C

Accuracy (-10 to +60 °C): ±1.5 °C

Repeatability: ±0.1 °C

Response time: 120 s

Supply voltage: DC 2.4-5.5 V (typical 3.3 / 5 V)

Max. peak current consumption: 175 mA

Max. wire length for I2C: 0.5 m

Dimensions: 59 × 27 mm