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elevator emergency phone factory

From elevator emergency phone factory

共同溝緊急電話
Emergency telephones for utility tunnel purpose made of aluminium alloy material by die casting. The telephone waterproof is rugged and durable. Body-integral, Strong flame retardancy and low-temperature resistant. Special sealing design can ensure complete waterproof grade up to IP66. Waterproof, dustproof and moisture-resistant. The telephone waterproof widely used in tunnel and outdoor. Most metro and high-speed rail project need install IP66 telephone for emergency communication.

Model: CDU-AUX
サイズ: 492*302*185mm
周囲温度:-40℃~50℃
相対湿度:10%〜95%
大気圧:80~110kPa
周囲騒音: ≤60dB
動作周波数:300~3400Hz
送信ラウドネス定格 (SLR): 5- 15dB
受信ラウドネス (RLR): -7-2dB
サイドトーンマスキング定格(STMR):≥7dB

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elevator emergency phone factory products
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