Настенные часы NTP 2 3 дюйма 6 цифр сетевые
- Категория: Other Consumer Electronics >>>
- Поставщик: Shanghai,GlobalTime,Electronic,Co.,Ltd
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Описание и отзывы
Трекер стоимости
| Месяц | Минимальная цена | Макс. стоимость |
|---|---|---|
| Sep-17-2025 | 262.7 $* | 275.36 $* |
| Aug-17-2025 | 260.21 $* | 273.19 $* |
| Jul-17-2025 | 218.18 $* | 229.93 $* |
| Jun-17-2025 | 255.49 $* | 268.53 $* |
| May-17-2025 | 222.79 $* | 233.30 $* |
| Apr-17-2025 | 251.77 $* | 264.31 $* |
| Mar-17-2025 | 249.47 $* | 261.1 $* |
| Feb-17-2025 | 246.22 $* | 258.36 $* |
| Jan-17-2025 | 244.6 $* | 256.2 $* |
Характеристики
Synchronised Time System
Time is real!
Synchronize with Network!
IP Based!
The clock can sync with internet public NTP server or private NTP server, so it is not necessary to buy GPS time server (private NTP server)
Clock Features
• Available with 2.3” , 6 digit display
• Red display standard
• Time is automatically set by Simple Network Time Protocol(SNTP)- no master clock or serial connection required
• Static IP or DHCP addressing
• 12 or 24 hour display
• Automatic Daylight Saving Time change (if applicable)
• Adjustable brightness (brilliant, bright, normal, dim, off)
• Capability to receive realtime countdown command
• If connection to NTP server is lost the clocks will continue to run on the built-in time base. When the connection is restored it will synchronize automatically.
• The clock features time loss notification by having a light on on the right lower corner
• Red display standard
• Time is automatically set by Simple Network Time Protocol(SNTP)- no master clock or serial connection required
• Static IP or DHCP addressing
• 12 or 24 hour display
• Automatic Daylight Saving Time change (if applicable)
• Adjustable brightness (brilliant, bright, normal, dim, off)
• Capability to receive realtime countdown command
• If connection to NTP server is lost the clocks will continue to run on the built-in time base. When the connection is restored it will synchronize automatically.
• The clock features time loss notification by having a light on on the right lower corner
What is NTP
Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks. In operation since before 1985, NTP is one of the oldest Internet protocols in current use. NTP is intended to synchronize all participating computers to within a few milliseconds of Coordinated Universal Time(UTC).[1]:3
It uses the intersection algorithm, a modified version of Marzullo's algorithm, to select accurate time servers and is designed to mitigate the effects of variable network latency. NTP can usually maintain time to within tens of milliseconds over the public Internet, and can achieve better than one millisecond accuracy in local area networks under ideal conditions. Asymmetric routes and network congestion can cause errors of 100 ms or more.
It uses the intersection algorithm, a modified version of Marzullo's algorithm, to select accurate time servers and is designed to mitigate the effects of variable network latency. NTP can usually maintain time to within tens of milliseconds over the public Internet, and can achieve better than one millisecond accuracy in local area networks under ideal conditions. Asymmetric routes and network congestion can cause errors of 100 ms or more.
Management Software
We can program the bell to ring at 30 different moments
Company Profile
About Us
GlobalTime has been a pioneer in synchronized timekeeping systems since the year 2003. We strive towards innovation and reliability. We feature a complete line of NTP servers (GPS time servers) and synchronized Clocks. With outstanding R& D team, GlobalTime offers a wide range of NTP servers and NTP clocks, radio clocks, CDMA clocks. By providing accurate, real-time information, we keep schools, hospitals, airports, train stations, media houses, offices, financial institutes, military bases, public security bureaus and other governmental institutes informed and on the same stage.
Our clocks are widely used in 68 countries or regions all over the world, including North America, Central America, South America, Europe, Middle East, Africa, Aisa and Australia.
We provide first-rate and lifetime technical support for our products. At GlobalTime, we value our customers and their satisfaction above all else!
Our clocks are widely used in 68 countries or regions all over the world, including North America, Central America, South America, Europe, Middle East, Africa, Aisa and Australia.
We provide first-rate and lifetime technical support for our products. At GlobalTime, we value our customers and their satisfaction above all else!
Office in Shanghai, China
Workshop- NTP Server Testing
Workshop- NTP Clocks Testing
Company Culture (Table Tennise Room)
Exhibitions
ConnecTech Asia in Singapore
GITEX in Dubai, UAE
CES in Las Vegas, USA
FAQ
Question:
Hi from Sweden, I am interest to buy this item, but I don’t know if you can send it to Sweden.
Answer:
Yes, we can send it to Sweden, we have CE, FCC, RoHS, ISO9001. Currently we have sold our NTP clocks and NTP servers to 68 countries or regions over the five continents in the world.
Question:
When there is interruption of power supply, will the clock work?
Answer:
The clock doesn’t have a built-in battery, when there is interruption of power supply, it won’t work. But as soon as the clock is connected to power and network, it will display the correct time automatically, no need of manual adjusting.
Hi from Sweden, I am interest to buy this item, but I don’t know if you can send it to Sweden.
Answer:
Yes, we can send it to Sweden, we have CE, FCC, RoHS, ISO9001. Currently we have sold our NTP clocks and NTP servers to 68 countries or regions over the five continents in the world.
Question:
When there is interruption of power supply, will the clock work?
Answer:
The clock doesn’t have a built-in battery, when there is interruption of power supply, it won’t work. But as soon as the clock is connected to power and network, it will display the correct time automatically, no need of manual adjusting.
Question:
When there is interruption of network, is there any indication? And will the clock still display correct time?
Answer:
When there is interruption of network, is there any indication? And will the clock still display correct time?
Answer:
Normally the clock synchronizes with NTP server every 5 minutes. When there is interruption of network, a small dot will appear on the lower right corner of the LED display and the clock won’t synchronize, so it will be inaccurate slowly, the deviation is about 1 minute per day! When it is connected to network again, it will display correct time and automatically and the dot will disappear.
Question:
Hello! Does this clock display 24h? Or is it 12h am/pm only?
Answer:
It can be set to either 12or 24 hour display. You can set on the management software. When it is set 12 hour display, a dot will appear on the left upper corner of the LED display to mean am.
Question:
Hello! Does this clock support IPv6?
Answer:
No, the current version only supports IPv4.
Question:
Can we set up the time without a NTP server?
Answer:
It does require some NTP server, such as our NTP server (model: GTT100, GTT200, GTT400) or internet based source( internet public NTP server). With that available, it will keep itself accurate and on the money.
Question:
Hello! Does this clock display 24h? Or is it 12h am/pm only?
Answer:
It can be set to either 12or 24 hour display. You can set on the management software. When it is set 12 hour display, a dot will appear on the left upper corner of the LED display to mean am.
Question:
Hello! Does this clock support IPv6?
Answer:
No, the current version only supports IPv4.
Question:
Can we set up the time without a NTP server?
Answer:
It does require some NTP server, such as our NTP server (model: GTT100, GTT200, GTT400) or internet based source( internet public NTP server). With that available, it will keep itself accurate and on the money.
Question:
Will you charge for the management software?
Answer:
No. It is free.
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