The land phones do not have any dangerous radiation,Only the mobile phones which work with micro wave radiation.Several studies made didi not make any dangerous radiation for human life.
I dont know the model 82082 But U can use it to find the voltage of your kitchen outlet to select appliances
Use the correct range Ampere,AC voltage,DC voltage, Resistance etc..
Use AC voltage range(from 100 to 500
Electrical engineering is where U study Generation, transmission, distribution, protection system etc Also Motors, Tranformers, switch gears.....
Electronics is different..It is about Transistors, micro chips, Ics and smaller componets and thier use in Industry.Contro systems.Amplifiers,,,,