4" Digital PoE Clocks- Single sided & Double sided

Features
• Draw both power and time updates from the network
• Power over Ethernet (IEEE802.3af)
• Supports up to 5 SNTP servers for redundancy
• DHCP or Static IP addressing
12/24 Hour Mode with PM indicator • Timezone management ( Factory-set to your time zone) • Automatic daylight saving time adjustment (where applicable) • Easy plug and play installation. • Accuracy ±20 millisecond to NTP/SNTP time server • Programmable countdowns • Adjustable brightness settings • 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
 
Options include...
* 4-digit or 6-digit displays * Red/ green/ yellow/ amber digits * Single-sided or double-sided clocks
 
Optional Functions:
There is additional charge for optional functions.
(1) We can add a built-in bell relay to the clock, then it can be connected to a bell and the bell can be programmed to ring at 30 different moments.
(2) We can add a temperature sensor or humiture sensor to the clock then it can display time, temperature, and humidity alternately.