Difficulty depends on a learners native language and exposure
Foster, et
14, 2016, 8:43 p.m
Sensed parameters: Temperature, Relative humidity, VOC, CO2, Particles PM (0.1, 0.3, 0.5, 1.0, 2.5, 5.0 & 10), Barometric pressure, Sound*, Ozone**, Arsine*, Formaldehyde*, Methyl Mercaptan*, Chlorine*, Carbon Monoxide*, Ethylene Oxide*, Hydrogen*, Hydrogen Sulphide*, Hydrogen Cyanide*, Ammonia*, Nitrogen Dioxide*, Oxygen*, Odorous gases*, Phosphine*, Sulphur Dioxide* Distinguishes between vaping and smoke and counts the number of detections Communication: LoRaWAN
The engines are dual calibration engines, meaning the driver can switch the power output depending on which key they are using