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Shenzhen Sinda Technology Co., Ltd.
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PH-G-3 GSM Industry Alarm System :- oversea(at)sdph com Main Function * With WAVECOME double frequency GSM module. * 8 digital inputs and 2
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G30E & G30EA GSM Power Facility Alarm System :- Main Function * With 8 routes of wired input alarm. * Monitor 3-phase loss voltage and
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