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Часы NTP PoE красные цифры отображение времени и текста

Часы NTP PoE красные цифры отображение времени и текста

Категория: Цифровые и аналогово-цифровые часы >>>
Поставщик: Shanghai,GlobalTime,Electronic,Co.,Ltd

Цена:*

Количество:

Описание и отзывы

Трекер стоимости

Месяц	Минимальная цена	Макс. стоимость
Sep-16-2025	0.45 $*	0.56 $*
Aug-16-2025	0.43 $*	0.1 $*
Jul-16-2025	0.68 $*	0.25 $*
Jun-16-2025	0.84 $*	0.56 $*
May-16-2025	0.63 $*	0.77 $*
Apr-16-2025	0.42 $*	0.26 $*
Mar-16-2025	0.96 $*	0.91 $*
Feb-16-2025	0.75 $*	0.45 $*
Jan-16-2025	0.93 $*	0.90 $*

Характеристики

Metal Case in White

Metal Case in Black

Stainless Steel Case in Grey

Synchronised Time System

NTP PoE Clocks

- Powered by Network

NTP Clocks can synchronize with internet public NTP server or private NTP server, so if internet is available, then it's not necessary to buy a private NTP server.

Download Link of Software & Manual:

https://www.ntpclock.com/manuals

Clock Features

• Available with 2.3” digits, can display calendar or English text ( less then 32 bytes)

• Red display standard.

• Time is automatically set by Simple Network Time Protocol(SNTP)- no master clock or serial connection required

• Uses PoE (Power over Ethernet) for easy installation and operation

• 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 the right lower corner of the screen

Optional Features:
(1) The clock can be single sided ( has one display) or double sided ( has two displays), if you need double sided clocks, please specify.

(2) Alarm function. We can add a bell relay into the clock, then you can connect the clock to a bell and program the bell.
(3) Temperature/ humidity display is optional. We can add a sensor to the clock, then it can display time, teperature, and or
humidity alternately.

There will be additional charge for adding optional features. If you need optional features, please specify when you place order.

Relay

Connector

Bell

Can display temperature & humidity

Management Software

Power Supply and Installation

Power Supply

(1) If the local network supports PoE, then only one network cable is needed.

(2) If not, then an additional power adapter with a 5.5mm x 2.1mm plug is necessary.

Purchase link of power adapter :

https://www.alibaba.com/product-detail/12V-2A-Power-Supply-AC-DC_11000000256049.html?spm=a2747.manage.0.0.325871d2nB4uNa

Installation

For single- sided clocks, it's not necessary to use the installation accessories because on the back side there are two holes for hanging the clock on the wall, but for double- sided clocks, it is necessary to use the installation accessories.

There will be additional charge for installation accessories. If you need installation accessories, please specify when you place order.

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, ISO. Currently we have sold our NTP clocks and NTP servers to 68 countries or regions over 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:

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:
Will you charge for the management software?
Answer:
No. It is free.

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!