... , lottery terminals, intelligent metering, wireless fax, branch exchange, tobacco network, campus network, wireless AD, wireless media, medical surveillance, relay station surveillance, railway ... home appliances, vehicle-mounted surveillance, etc.Technical parametersSystem: GSM/GPRSFrequency channel: EGSM900/DCS1800MHzDimensions: 44.5*28.5*8.25mmWorking temperature: -30 ...