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Outdoor Telephone Handsfree Intercom KNZD-39 Industrial Telephone Feature :
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1. Knzd-39 VoIP Outdoor Telephone matching with most PABX, PBX and PAX systems.
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2. Handset free, loudspeaker, LED incoming call indicator.
3.Resume lightning proof protection automatically standard to ITU-T K21.
4. Outdoor Telephone Knzd-39 waterproof grade is IP65.
5. The metal shell is provided with grounding connection device and is absolutely insulated with inner circuit and electric, then has the effect of electromagnetism shield.
6.Support hotline call, can realize ring off automatically if the other side close.
7.Main body with cold-roll steel sheets body, solid.
8. The design of handsfree intercom is super thin and smart, wall mounting style.
9. Every call is limited (set by five minutes), auto ring off if time exceeded. (Optional).
10. Emergency telephone has passed the certificate of ISO9000(2000).
11.Totally adopt SMTC craftwork keep steady quality.
Outdoor Telephone Handsfree Intercom KNZD-39 Industrial Telephone parameter :
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| Ambient temperature: | -30 ~Â +75C |
| Relative humidity:Â | 10%~95% |
| Atmospheric pressure: |  86~106Kpa  |
| Circumstance noise: | less than 60dB(A) |
| Sound level of ringing: | over 70dB(A). |
Outdoor Telephone Handsfree Intercom KNZD-39 Industrial Telephone photo show :
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2, Automatic closing line busy function: If your telephone is installed in the home, the elderly are often unable to replace it and second phone call does not come through.This phone can solve your problems, without handset also can automatically hang up ,the elderly don't need to remember telephone numbers!
3, Automatic answer and safety stop function: TV often report elevator fights, this phone can help you solve this problem, the monitoring center to see if there are fights in elevator, security personnel can call this phone to stop it.
4.Remote save number : It is very convenient, if customers don't know how to store number, as long as connected to the telephone line, we can help you to save telephone number , customers don't worry about how to store number!
HongKong Koon Technology Ltd is the most professional manufacturer in Asia, The exclusive supplier for all Metro project in China.
We are the leading professional manufacture of most complete production line of IP66/IP67 emergency telephone, SOS phone, Weatherproof telephone, elevator telephone, tunnel trackside telephone, highway emergency phone.They are IP or PSTN/analogue telephone and wireless GSM 2G 3G. phone line powered, solar powered, or AC powered.
More than 100 models, different colors, different type of mounting, CE, FCC, IP66, ITU-T, ISO9001, EN50121 approvaled. ATEX DNV certificate under process.
Emergency telephone Application:
indoor: Airprot, transtation, bank,koisk, elevator, university, hotel, hospital, plant, oil and gas.
outdoor: tunnel, highway, marine, outdoor station, construction, bridge, steel, mine, army, scenic region,Â
Successful project in recent:HK MTRC contract XRL851, LRT Project in Malaysia, Bangalore Metro, HONGKONG KAIDA tunnel,HK MTR,Italian Metro,BKK Red Line Thaliand,
IKITELLI metro project, Mumbai metro in Indea, NSR project in Saudi,BHP Billiton australia, CSN Brazil, Chalco China, story bridge Austrialia,HSBC bank, China bank, ICBC, HK airport, Frankfurt France, BeiJin airport, Beijin University, HK university, etc.
About Outdoor Telephone Handsfree Intercom KNZD-39 Industrial Telephone market:
Our Public telephone emergency intercom  are widely accepted in countries in North America such as USA, Canada, in European countries such as UK, Germany, France, Netherlands, Greece, Sweden, Ireland, Swiss, Austria, Luxembourg, Belgium, Italy, Spain etc. and Russia.
FAQÂ
Q: What's the MTBF of Outdoor Telephone Handsfree Intercom KNZD-39 Industrial Telephone   ?
A: 5-70000 hours.
Q: What's the advantages of Koon Outdoor Telephone Handsfree Intercom compared with others?
A: Most of our products have already passed International Standard such as IECEX,IP65,IP66,FCC,CCC,ISO9000,EMC,ROHS,SGS etc We have enough stocks,shortest lead time,3 to 7Â days delivery time.
Preferential price,If you tell us the name of the project and send back the photos of the phone after installation,we will offer more discount.
Q: How long is the warranty period?
A: 18 Months of Outdoor Telephone Handsfree Intercom .
Q: Can I customize the Industrial Telephone ?
A: Yes,we accept OEM\ODM,please provide your detailed requirements.
Thanks for visiting our website, if you have any interest for Outdoor Telephone Handsfree Intercom , welcome to contact us any time.
Any question about the Outdoor Telephone Handsfree Intercom , please let us know freely.
We will reply you in 2Â hours.
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Semiconductor Fuse And Ferrite
Fuse refers to an electric appliance that, when the current exceeds the specified value, melts the fuse and disconnects the circuit with the heat generated by itself.When the current exceeds the specified value for a period of time, the fuse melts and disconnects the circuit with the heat generated by the fuse itself.A current protector made from this principle.The fuse is widely used in high and low voltage power distribution system and control system as well as power equipment.
Ferrite is a metal oxide with ferrous magnetism.As far as electrical properties are concerned, the resistivity of ferrite is much larger than that of single metal or alloy magnetic materials, and it has higher dielectric properties.Ferrite magnetic energy also shows high permeability at high frequencies.As a result, ferrite has become a non-metallic magnetic material widely used in the field of high frequency and weak current.Due to the low ferrite magnetic energy stored in the unit volume, saturated magnetic induction strength (Bs) and low (usually only pure iron 1/3 ~ 1/5), and thus limits its higher requirements in the low-frequency magnetic energy density in the field of high voltage and high power applications.
Semiconductor Fuse, Fuse Cutout, Protection Fuse, Square Fuse, Fuse Link, Ceramic Fuse, Fuse Box, Fuse Resistors
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