Datalogic Memor 1 User Manual page 155

Connections
Turn off the device when in any area with a potentially
explosive atmosphere. Observe restrictions and follow
closely any laws, regulations, warnings and best
practices on the use of radio equipment near fuel
WARNING
storage areas or fuel distribution areas, chemical
plants or where any operation involves use of explosive
materials.
Do not store or carry flammable liquids, explosive gases
or materials with the device or its parts or accessories.
Areas with a potentially explosive atmosphere are
often, but not always, clearly marked or shown.
Sparks in such areas could cause an explosion or fire,
resulting in injury or even death.
User's Manual 149