crwdns2936039:0Elster REX2 Smart Meter Teardowncrwdnd2936039:09crwdne2936039:0

crwdns2933803:09crwdne2933803:0

crwdns2933797:0Andrew Bookholtcrwdnd2933797:0Kho 28, 2011crwdne2933797:0

-	[* black] The true innovation in the ~~Smart Meter~~ is ~~its~~ ability to relay power consumption statistics without direct contact from a meter reader. It accomplishes this by sending encrypted signals on the 900 MHz [link\|http://en.wikipedia.org/wiki/ISM_band\|ISM band]. The antenna can be seen on the rear side of the board near its bottom edge.
+	[* black] The true innovation in the smart meters is their ability to relay power consumption statistics without direct contact from a meter reader. Our Elster meter accomplishes this by sending encrypted signals on the 900 MHz [link\|http://en.wikipedia.org/wiki/ISM_band\|ISM band]. The antenna can be seen on the rear side of the board near its bottom edge.
	[* icon_note] Elster designed the antenna pattern to force signals away from households.
-	[* black] Elster ~~Watthour Meters~~ only relay information when they are spoken to by other meters in the mesh. When they relay information the amount of RF radiation emitted is ~1/4 W, which is less than most cellular phones.
-	[* icon_note] Elster designed its meters to transmit data every six hours for 40 ms at a time.
+	[* black] Elster meters only relay information when they are spoken to by other meters in the mesh. When they relay information the amount of RF radiation emitted is ~1/4 W, which is less than most cellular phones.
+	[* icon_note] Elster designed its meters to transmit data every six hours for 40 ms (.04 seconds) at a time.