... 3.OEM,ODM serviced 4.Low MOQ / ISO9001:2008 Best Wireless GSM 900 Repeater for Mobile Signal: 1,Low power consumption; 2 ... ,Convenient for installation; 3,Cost saving; Best Wireless GSM 900 Repeater for Mobile Signal Features:1,To amplify all ... Power Supply (Optional)6 hours / 8 hoursNMS Monitor FunctionReal-time alarm for Door Status, Temperature, Power Supply, VSWR, Output Power, ...