a similar version at a Dominos, which cost $14.99
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A person may not sell, give, or cause to be sold or given a Restricted Product to someone who appears to be younger than 30 unless that person presents an Acceptable Form of Identification
Tech specs Product features Sensors: Radon, particulate matter (PM 2.5 ), Carbon dioxide (CO 2 ), temperature, humidity, airborne chemicals (VOC), air pressure Display: 2.9 296128 pixels ePaper Visual indicator: Red/yellow/green glow indicator Long battery life: Up to 2 years (depends on sensor interval and WiFi router) Optional operation on USB-C (runs from batteries if removed) Supports wall mounting or placement on table Wireless connection: WiFi or Airthings SmartLink (with Hub) Bluetooth for on boarding and daily use configuration Hub functionality: Enabled when connected with WiFi and USB-C cable is plugged into device (not compatible with Wave Radon 1 st Gen SN: 2900xxxx) Radon specifications Radon sampling: Passive diffusion chamber Detection method: Alpha spectrometry Measurement range: 0 500 pCi/L / 0 20,000 Bq/m 3 Accuracy/precision at 5.4 pCi/L / 200 Bq/m After 7 days ~ 10 % After 2 months ~ 5 % 3 : Air quality specifications Sensor sampling interval: 5 minutes Sensor Resolution: Temperature 0.1C / F Humidity 1% Pressure 0.15hPa Initial calibration time: VOC ~7 days CO2 ~7 days CO 2 details: NDIR Sensor (Non-Dispersive Infra-Red): Measurement range 4005000 ppm Optimum Accuracy 50ppm 3% within 10 35C / 50 - 95F and 0 80%RH after initial calibration time Particulate Matter (PM Laser scattering based optical particle counter 2.5 ) details: Particle size detection range: 300 nm to 10 m Range: 0~1000 g/m Measurement error (PM2.5): below 150 g/m3: (5 g/m3 + 15%), above 150 g/m3: (5 g/m3 + 20%)
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