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Ace AI GPS M4 Digital GPS Clock

KSh 34499

In stock

Ace AI GPS M4 Digital GPS Clocks are Digital GPS Based Clean Room Synchronized Clocks which are specifically made for Pharma company Clean Rooms to ensure uniform time across the plant using Master-Slave Synchronization of clocks over wired RS 485 Modbus Communication.
Applications: Banks, Pharma drug companies, Clean Rooms, Hotels, multi-storied workplaces, Hospitals, time workplaces, air terminals, and railroads, etc.

Ace AI GPS M4 Digital GPS Clock is the Master GPS Clock that is configured to accept the country’s Global Positioning Satellite Time. It communicates GPS Time to Slave Clocks through RS 485 wired communication and is accurate to 500 milliseconds. The Master GPS Clock can also be given with a Radio Frequency (RF) Wireless Communication, which does not require communication cabling, for India and other nations where 865 MHz is a free to air frequency. In a Wireless Mesh Network, the master and slave clock communication works.
Features of Ace AI GPS M4 Digital GPS Clock :

  • Stainless Steel Washable Front Plate with IP65 Rating for Aesthetic Blending in Pharma Clean Rooms.
  • Even in the event of a power outage, the time is kept accurate by the internal memory battery. The clocks run on an in-built high accuracy mode with an annual drift of fewer than +/-60 seconds in the event of RS 485 or wireless RF communication failure.
  • A variety of display sizes are available for digital slave clocks, including a 4″/2.5″/1″ High Super Bright 7 Segment Display Panel with 6 displays, two each for Hours, Minutes, and Seconds.

Additional information


Ace Instruments

Model No



+/-60 Seconds per year standalone accuracy (In absence of GPS Signal)


4 Digits 4” High 7 Segment Super Bright Red LED Display for Hours & Minutes (HH:MM) 2 Digits of 2" height for seconds (SS)

GPS Receiver Specifications

Antenna Type : Active ; Antenna Wire Length : 3 mtrs.; Protocol : NMEA Standard ; Cold Start : 45 Seconds ( Avg) ; Warm Start : 45 Seconds ( Avg) ; Hot Start : 2 Seconds

Time Display Format

24 Hours Time Format Standard


24 V.D.C. 1 Amps for 1” & 2.5” Clocks 24 V.D.C. ,1.5 Amps for 4” Clocks

Master/Slave Synchronization Modes

Wired (RS485 2 wire communication; Wireless (Radio Frequency)

Line Of Sight

Upto 1200 meters(Subject to data noise)


Mild Steel Powder Coated with Stainless Steel Front Flush Plate

Power Supply

110-230 VAC, 50/60 Hz.


Contact Store for project based customization


Provided alongwith and valid for 1 year, traceable to National Standards.


12 Months Manufacturer Warranty


Body 480 x 165 x 60 mm. ( W x H x D) Front Flush Plate 525 x 180 mm ( W x H)

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Digital GPS Clock

Ace AI GPS M4 Digital GPS Clock

KSh 34499

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