... 2.Aluminum alloy shell, durable 1, equip with waterproof night vision 300,000 pixel digital camera, suitable for various occasions. ... and room number information, to the remote host, residential security alarm. 15, the host can be networked to the ... site monitoring, taking photographs. 19, the password operation to ensure system security. 20, with tri-band GSM 900MHz, 1800MHz, 1900MHz wireless ...