... electricity under voltage protection ≤ 1 second start-up time. Data Response: Time ≤ 10 seconds (normal GSM network). Working power: ... Co.,Ltd is a professional manufacturer engaged in the alarm systems of research,development, production, sales and service. ... main products are Home PSTN/GSM Security Alarm System, 3G Alarm System, GSM Power Alarm, Video Monitoring system, Wireless Remote controller, ...