AreaRAE Plus & AreaRAE Pro User’s Guide 
41 
 
Depending on the installed  sensors, standard available measurement units include: 
  
parts per million,  parts per billion 
milligrams  per cubic meter,  micrograms  per cubic 
meter 
milligrams  per cubic meter 
microrems  and millirems  per hour 
microSieverts  and milliSieverts  per hour 
microRoentgens  and milliRoentgens  per hour 
microGrays  and milliGrays  per hour 
 
Here is an example of the menu hierarchy (select the sensor type and then the measurement unit): 
 
           
 
Duplicated Sensor 
If there is sensor duplication  (for example, two PID sensors for VOC), then the “Duplicated Sensor” 
menu item is shown. You can select which of the duplicated  sensors to make active. The instrument does 
not support duplicate sensors.