It shouldn't, but with more advanced type products like a burglar alarm, you want to check with that company first.
You dont have to worry about that. The answer is no. Those devices use different frequencies than your wireless device uses.
Generally, an external hard drive won't interfere with wireless reception. They are plugged into the PC and are not designed to use airwaves. What will interfere with wireless reception are microwave ovens and other devices that operate in the microwave band, as well as metal, thick concrete or brick, and a lot of distance or obstacles. But if you suspect your external hard drive is interfering, you can try moving it or unplugging it.
ZigBee is similar to Bluetooth and connects to wireless devices. It is a low cost and energy efficient application that has been around since the 1990's. The devices work very differently than Bluetooth and the markets don't interfere.
In today's digital world, wireless technology has made its way into an array of devices and gadgets, including surveillance cameras. The biggest problem with wireless devices is interference, which causes weak or no signals at all. This is because most wireless devices use the same frequencies to transmit their signals, usually 2.4 GHz. A cordless telephone, bluetooth device, and internet router could all interfere with the wireless signals that are transmitted between the surveillance camera and the receiving monitor or DVR. The best way to fix this interference problem is to check if any of the wireless devices could be set up to operate on a different frequency band, such as 5 GHz.
You can have both connected to the internet at once however, the more devices you connect at once, the more your internet may slow down.
What must be identical on all devices in a WLAN for successful wireless communication between the devices?
wireless phonesmicrowaves
Wireless Phones and Microwaves.
wireless devices
A Wireless G router provides Wireless access to 802.11g compatible devices
Wireless Phones and Microwaves.
Access Point (AP)