ECM-1240 / Xbee Wireless Gateway Radio Performance

[incline]

Does anyone have any experience with the Xbee (Zigbee) radio signal penetrating a residential brick wall? I am planning an installation where the service panel and dual ECM-1240 with the Xbee radio option are 30 feet away from the EB-1 EtherBee Gateway, but on the other side of an exterior brick wall.

Do you believe the signal will be strong enough? Will the internal antenna on the ECM-1240 and gateway be enough, or would I be better served by adding the external antenna on the gateway, or gateway and ECM modules?

Would WiFi (802.11a/b/g/n) be better? WiFi is supposed to use more power, however I prefer not to use it for security reasons.

[ben]

It's hard to say, we can't guarantee anything.

Is the brick wall the main reason you're going wireless? If so, it's possible to run a longer network cable to get the EtherBee closer to the wall.

Ben