How far is the distance for this module ?

[bianchi77]

Friends,

Do you know how far is the maximum distance for these devices on transmiting data ?
from the spec is 10mW but I can not see dB,

Can it be on about 20m far ?

Device :


Thanks

 

[keith1200rs]

Not much to go on, but 10mW should go 20m provided you have some sort of antenna.

Keith

 

[bianchi77]

Not much to go on, but 10mW should go 20m provided you have some sort of antenna.

Keith

How can I make a condition if the transmitter distance is above 2 m, the LED on receiver will on ?

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Not much to go on, but 10mW should go 20m provided you have some sort of antenna.

Keith

How can I make a condition if the transmitter distance is above 2 m, the LED on receiver will on ?