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Wall Mounted Metro Highway Train Station Help Point Intercom for Public

Shenzhen Yuantong Modern Technology Co., Ltd.
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Shenzhen Yuantong Modern Technology Co., Ltd.
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City: Shenzhen
Province/State: Guangdong
Country/Region: China

Wall Mounted Metro Highway Train Station Help Point Intercom for Public

Wall Mounted Metro Highway Train Station Help Point Intercom for Public

Technical Parameters Voltage DC5V/1A Standby working current ≤300MA Frequency Response 250~3000 Hz Ringing level ≥85dB(A) Anti-corrosion grade WF2 Ambient temperature -20~+60℃ Air pressure 80~110KPa ...

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