... system,alarm with LCD dispaly,with voice Newest 98 zones wireless alarm system,wireless alarm,home alarm system,alarm with ... LCD dispaly,with voice8 wired & 90 wireless compabile zones alarm system with voice (LCD)(1): Funcation: 1. Big LCD ... siren, Open the wireless siren}) 4. Wireless frequency: Receive 315MHz( emission 433 MHz) 5. Wireless encoding: ASK 6. Wireless receive sensitivity: -105dBm ...