Interior flash analogical route I remove. Equipped with transmitter / recipient route I remove. Equipped with double source for batteries of lithium that guarantee the functioning of the flash for 5 years being this one, totally supervised. Cadence of the eligible flash (1Hz or 0,5Hz), with technology LED. Code of coverage EN54-23 W-3,1-11,5. He has sign of breakdown of tamper, to prepare the equipment of not wished extractions or of physical hurts.