DSP3354EN 10W EN54 Fireproof Ceiling SpeakerNovember 15, 2016he on-wall loudspeaker DSP3354EN is specifically designed to meet the requirements of EN54-24 that is part of a series of norms concerning voice alarm evacuation in case of fire, so it also called as en54 ceiling speaker.view
DSP3254EN 10W EN54 Fireproof Ceiling SpeakerNovember 15, 2016The DSP3254EN is a ceiling speaker designed for voice evacuation systems, so it also called as en54 ceiling speaker, which comply with EN54-24 requirements. It has a 100v transformer built in.view
DSP3154EN 10W EN54 Fireproof Ceiling SpeakerNovember 15, 2016This product is a 10W fireproof ceiling speaker with aluminum mesh and fireproof cover, rust-proof and durable. The speaker features a reinforced adjustable clip for easy installation and a safety ste...viewwe will contact you within 24 hours.
Great Success in Security China, 2018October 29, 2018Great Success in Security China, 2018The 14th China International Exhibition on Public Safety and Security will be held in China International Exhibition Center (New Center), on October 23–26, 2018, ...view
Application of Paperless Conference System SoftwareMay 13, 2022The paperless conference system caters to the national informatization development strategy and the needs of scientific and technological office. While reducing paper consumption, it also greatly impr...view
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