User's Manual

APPENDIX A: SPECIFICATIONS 67
Bluetooth 2.0 + EDR
UL
About Bluetooth Range
The Bluetooth Cordless Ring Scanner features a powerful Class 1
Bluetooth radio to provide the maximum possible range. As with all
wireless technologies, the connection range can vary widely
depending on many factors such as the class and placement of the
Bluetooth radio in the host device, the type and size of physical
obstacles and the presence and activity level of competing radio
transmissions.
In range testing of the Bluetooth CRS while connected to a variety of
typical host devices with Class 2 radios, functional connection
distances from 18 to over 100 feet have been experienced
depending on the environment. The following conditions appear to
reduce the Bluetooth connection range:
• The presence of soft, absorbent materials such as paper,
fiberglass insulation, foam material in office cubical walls,
carpeting and, to a lesser extent, even sheetrock and wood
construction materials.
• Human bodies or containers of liquid positioned between the host
and the Bluetooth CRS.
• The presence and activity level of competing Bluetooth or 802.11
(Wi-Fi) systems using the same 2.4 GHz frequency.
• Metal in a grid pattern, such as chain link fencing or chicken wire.
This type of material may block the Bluetooth (or Wi-Fi) signal
completely.