... Facility Alarm S250:1.GSM/GPRS Data Transmission, no distance limitation;2.Lighting protection design;3.Weatherproof design, with temperature ... degree Digital input: 8 (Dry contact, NC,NO,EOL)Digital Output Relay: 2 (10A,240VAC)Solar Panel Input Voltage: 12V DCBackup ... on the network condition)Relative Humidity: 10 to 90%, No condensationGSM Band: 850,900,1800,1900MhzGSM Emission Power: GSM850, ...