====Signal Strength====

Valid only during the reception of a command in the ON or OFF script of a unit. This value will be set only with supported interfaces, right now the PowerLinc and the UPB interfaces.

===Usage:===
**signal strength** \\
returns an integer.

===Examples:===
<code applescript>
if (signal strength) is less than 10 then
write log "The signal strength is very low!
end if
</code>