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Hongkong Koon Technology Ltd.

Intercom, Sos Telephone, Heavy Duty Telephone manufacturer / supplier in China, offering Railway Telephone Stainless Steel Emergency Telephone Knzd-57, Push Button Clean Room Intercom, Sos Telephone Emergency Phone Knsp-03 IP66 Waterproof Telephone and so on.

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Supplier Homepage Product More Railway Telephone Stainless Steel Emergency Telephone Knzd-57

Railway Telephone Stainless Steel Emergency Telephone Knzd-57

FOB Price: US $1 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1/ Piece
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Production Capacity: 1000PCS Per Day
Transport Package: Kntech Standard Carton Packing
Payment Terms: T/T, Paypal

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Basic Info
  • Model NO.: Knzd-57
  • Function: Industrial Telephone
  • Touch Screen: Without Touch Screen
  • Voice Mail: Not Support Voice Mail
  • Answering Machine Record Audio Format: MP3
  • Customized: Customized
  • Hook: No
  • Keypad: No
  • Robust: Yes
  • Button: Yes
  • Vandal Resistant: Yes
  • Specification: CE, RoHS, ISO9001: 2008, SGS, IP66, FCC, EMC
  • HS Code: 8517180090
  • Type: Key Phone
  • Display: Without Display
  • Dial: DTMF
  • Cordless Telephone Frequency: DECT 6.0
  • Accessories: Telephone Cords
  • Color: Black
  • Handset: No
  • Door: Yes
  • Weatherproof Degree: IP65
  • Analogue, VoIP: Optional
  • Trademark: Kntech
  • Origin: Shenzhen
Product Description
Railway Telephone stainless steel Emergency Telephone Knzd-57

Product Name:

KOONTECH Emergency Telephone

Product model:



286 * 178 * 52mm (size can be customized)


304 stainless steel

Application: The telephone is suitable for subway, highways, elevators, docks, hotels, banks, town hall, clean rooms, airports, stations, etc. to moisture, fire, anti-noise, dust, antifreeze, destructive and other special requirements environments. 304 stainless steel housing, lift automatic dialing. Its technical indicators in the international advanced level. Passed CE, FCC, IP55 protection certification.Operation:
The phone can also choose to mention two automatic dialing numbers and speed to pull function.
1. Pick up / hang up way: pick / hang mode to handle control mode, the machine is turned off, hang up to disconnect;
2. Answer the phone: When there is an incoming call, phone rings , pick up the handset to talk , after hanging back to handset . the call is finish.
3. Call phone: Pick up the handset , press the yellow button for the common telephone call, the red phone to emergency phone call;
Product Features:
1. Shell : 304 stainless steel, strong anti-riot.
2. The handset, buzzer, circuit boards, multi-layer waterproof shell with all accessories, dust-proof structure.
3. Telephone is very stability, strong anti-jamming capability, in line with the national standard GB / T 15279-94 obtain a certificate.
4.The protection level can be raised to IP65.
5.The sell has a grounding device and completely isolated from the internal circuits of electrical ,with some electromagnetic shielding effects.
6. Call the language is clear, loud and clear voice, no whistle.
7. Handset: special engineering plastics, twist pull no deformation, integrated structure, good sealing, withstand percussion is not broken, don't burst at minus 35 degrees.
8. Whole telephone is lightweight and beautiful.
9. Wire: The Teflon wire, acid resistance, high temperature, anti-aging, won't fire.
10. waterproof glue : imported waterproof glue, high viscosity, high temperature, high pressure, waterproof life is more than 5 years.
11. intelligent busy tone detection, when the radio signal is received after the machine automatically hang up.
Technical Parameters:
1. The supply voltage is applied to a variety of program-controlled switches and switches and height of dispatching exchange system 33-60V
2. Ambient temperature: -35 ºC ~ + 75 ºC
3. Relative humidity: 45% 95%
4. Atmospheric pressure: 86 ~ 106Kpa
5. Environmental Noise: ≤70dB
6. The low-frequency group: 697.770.852.941HZ
7. The high-frequency group frequencies: 1209.1336.1477HZ
8. deviation: ≤1.5%
9. The low-frequency group level: -9 ± 3d B
10. The high-frequency group level: -7 ± 3dB
11. The combination of high and low frequency difference: 2 ± 1dB
12. The total harmonic distortion at least 20dB below the fundamental level is low
* Call transfer indicators: (5Km) SLR≤12, RLR≤-1, STMR≥10, input impedance: 600Ω
Waterproof rating: IP65
Installation: Embedded
Mounting screws: M5 * 20 Cross recessed countersunk head screw / every 4
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