ไทย
From elevator emergency phone factory
ยูทิลิตี้อุโมงค์โทรศัพท์ฉุกเฉิน
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
ขนาด: 492*302*185mm
Ambient Temperature: -40℃ to 50℃
ความชื้นสัมพัทธ์: 10% ถึง 95%
Atmospheric Pressure: 80-110 kPa
Ambient Noise: ≤60dB
Operating Frequency: 300-3400 Hz
Sending Loudness Rating(SLR): 5- 15dB
Receiving Loudness Rating(RLR): -7-2dB
คะแนนการกำบังเสียงด้านข้าง (STMR): ≥7dB
