CO₂ Check™ devices use the most precise nondispersive infrared technology (NDIR) Senseair-brand sensors for accurate CO₂ measurements.
Measures: CO₂ (Carbon Dioxide)
Operating environment: indoor use -- 32 to 100 degrees Fahrenheit (0 to 38 degrees Celsius)
Transmitter power: 14 dBm
Data Transmission: 2 seconds
Battery Life: Up to 12 hours when fully charged
Protection class: IP20
Dimensions: 70x54x25 mm
Weight: 1.9 ounces
 
Senseair S8 Residential CO₂ Sensor
Measurement range: Up to 10,000 ppm
Power Supply: 4.5 V to 5.25 V DC
PWM output: 0 to 100 % duty cycle for 0 to 2,000 ppm
Communication: UART (Modbus)
Operating temperature: 32 to 100 degrees Fahrenheit (0 to 38 degrees Celsius)
Accuracy: ± 70 ppm ± 3% of reading at 5 to 30°C, 20-70%RH
 
CO₂ Check™ monitoring devices are innovative, rechargeable, handheld, battery-powered, stand-alone devices for monitoring CO₂ levels.
 
Designed for use at home, in schools, offices, restaurants, churches, fitness centers or other indoor environments, CO₂ Check™ devices use cutting edge Senseair™ CO₂ sensors.  The portable, simple to use and easy to operate devices let users know when CO₂ levels become unhealthy so users can take steps to mitigate levels and help keep people safe.