Specifications for all readers:
- Primary power: Battery pack.
- Memory backup: Maintains all programming and history data for up to 3 months after loss of power.
- User feedback indicators: Visual and audible.
- Sealing: Weatherproof lens and gasket provides protection for outdoor use (usable in most environmental/exterior applications). FCC Compliance: Compliant with US, Canadian, and European EMC requirements, and for FCC Class A digital apparatus interference.