LED CLOCKS and TIMERS

sales@ledclocks.com

Tel: 1-866-829-4253

OPTION or MODE	DESCRIPTION
List Of Options	Complete list of major clock options for all models. Additional options can be added upon customers request.
Master-Slave synchronized clocks	Variety of synchronization methods and protocols for real time clocks and timers, using wireless or wired RS485 or RS232 communciation. Unlimited number of clocks can be also synchronized with NTP server, GPS or Local Master Clock Various sync protocols avilable like: Power line carrier ( Simplex m), ASCII Time Codes, Lathem code, Minute Pulse, Low or High Voltage wire, etc...
Display Modes	Examples of display modes avilable in all clocks and timers.
UP/DOWN Timer, Counter and Stopwatch	Programmable Up / Down interval timer-stopwatch or event counter in various operating modes, with alarm sound, light and/or relay(s) options. Operated via remote control or optional external inputs. Internal relay(s) option, controlled by timer count, for external loads. Variety of operating modes: Up, Down, Looping, Start from preset, Up to limit, Down past 0 and UP, etc... User Selectable Stopwatch display resolution in minutes, seconds or 1/100 second.
Programmable Multi-event Timer	Programmable event timer with up to 32 events per day, 224 events per week, with various sound and / or relay(s) operating modes. Weekly schedule programmed separately for each day of week. Up to 2 programmable relay(s) operation for each event ( 10Amp/250V max load each ).
Programmable Mulit-event Thermostat	Programmable temperature control thermostat with up to 32 events per day, 224 events per week, with various heat /cool and auto-change-over operating modes. Weekly schedule programmed separately for each day of week. Up to 2 programmable relay(s) operation for each event ( 10Amp/250V max load each ).
Temperature Diplay - Monitor	Temperature display for 1 or 2 temperatures with designations ( for instance: "In-Out", "Air-h2o", "Air-Pool", "Pool-Out" ) with external sensor probes in various operating modes. Enternal sensors wiring up to 500 Ft ( 150m ) away. Also available for multiple displays and Master - Slave.
Wind Speed Monitor - Display	Wind speed counter ( anemometer ) and display, with adjustable parameters. Remote LED display in indoor or outdoor, waterproof enclosures in various sizes.
Multi - Zone Clocks	Clocks with multi-zone display for 2, 3 and 6 zones, synchronized and with programmable, electronic zone names and date display. Unlimited number of zones can be assembled and synchronized with NTP server, GPS or Local Master clock. Each zone can be offset from UTC time within +/- 24 hours range, programmable in 1 minute steps.

Camera Friendly non-multiplexing display	Optional for all clocks and timers, solid display without flicker. Can be viewed by any camera or video without showing any flicker or oscillations.
Automatic LED Brightness Control	Auto-Dimming: Fully automatic control of LED display brightness self-adjusting to the local ambient light. Option available for all clock models.
Pulse Speed Counter and Display	External Pulse Speed counter ( pulse frequency ) for monitoring of production line performance. Remote LED display in indoor or waterproof enclosures in various sizes.
NTP Server synchronized clocks	Clock time and date synchronization using NTP Server data from public or local servers via wired Ethernet or WiFi. Either each clock can have its own NTP receiver or in Master-Slave systems the Master is synchronized by NTP, while unlimited number of other Slave clocks can be synchronized to the Master via other communication methods.
GPS synchronized clocks	Clock time and date synchronization using GPS Satellites. Either each clock can have its own GPS receiver or in Master-Slave systems the Master is synchronized by GPS, while unlimited number of other Slave clocks can be synchronized to the Master via other communication methods.
Synchronized Timers	Programmable timer ( Stopwatch ) display can be shown on unlimited number of remote displays via wired RS485 or RS232 communication. Alarm relays can also be controlled in remote display clocks.
Programmable Heat/Cool Thermostat	Programmable thermostat for heating and / or cooling with 1 or 2 external temperature sensor probes ( for instance "Inside" and "Outside" ) and with up to 2 internal, high power relays.
Remote Control via Serial communicatrion	Remote control of all clock, timer, thermostat features and settings, or other functions, using serial RS485 or RS232 communication. Available for use on custom systems that require display or clock control for special functionality.
Self-recharging backup	All clocks have internal, Self-recharging backup installed ( or optional Lithium battery ). Backup supports correct time count without the supply power for up to appx. 2 weeks on each charge and recharges itself fully within 1 hour.

IR Remote Control	Hand-Held Infra Red Remote Control for all functions, included with all clocks.
External Alarm with Siren, Buzzer or Light	Multi-event or Single event timers can control external Sirens, Buzzers, Light or other loads via internal relays rated up to 10Amps / 250V.
Wall Mount and Ceiling Mount	Enclosures available for Wall or Ceiling mount.
Surface or Flush Mount enclosures.	All clock models available for Surface or Flush mounting.
Waterproof Stainless Steel enclosures	Variety of clocks available in Stainless Steel, fully sealed, waterproof enclosures with indoor or outdoor, ultra bright LED display.
Indoor or Outdoor LED brightness	Models with lower, indoor brightness or Ultra bright outdoor LEDs.
LED Brightness control	LED display brightness can be manually controlled via IR remote Control in 8 steps. Standard in all clocks.
Timer Protection against power failure	Optional, continuous timer count in case of the supply power failure. Two modes selectable by user: A) Continue counting in background, or B) Resume count upon power return.
Power Line frequency time count	All clocks automatically detect the supply power line frequency and use it to count real time and date. If clocks are also synchronized by other reference ( GPS, NTP or Master ), the line frequency is used to maintain the correct time count in case of external reference absence or failure.

Internal Switch for Sync Source Selection (NTP,GPS, Serial )	This option allows remote selection of the time reference source. Any one of up to 3 sources can be selected at any time via the IR remote control or via serial remote communication.
Transparent Guard for Display	Transparent, Polycarbonate cover for protecting the LED display against damage like game balls, flying debris, etc...
Floor Standing Tripod	Foldable tripod for all sizes of displays. Extendable up to 7 feet ( 214 cm ). Can be used for indoor or outdoor clocks and timers.
Alternating display	Alla clocks displays can be set to alternate between up to 8 screens like, Clock Time, Temperature(s), Timers, Julian Day, Date, etc... . The alternation can be stopped and resumed at any time, via the IR remote control or serial remote.
12hr, 24hr or Military format	User can select ( via remote ) any time format for time and several formats for date display.
Clocks with Alphanumeric Display	Clocks with additional, electronic display of up to 11 characters of programmable time zone text and/or alternating with date, temperature, time, timer, Julian, etc...
Display Color Change	Display color can be changed automatically when timer ( stopwatch ) is running past 00 or "on-command" from external input signal ( contact or switch ).
Wake-up Alarm Clock	Similar to a bed-side alarm clock, but with automatic reload and variable alarm sound that is non-agressive and not annoying.
Timer control via 1, 2 or 3 external contacts	Selectable Timer ( Stopwatch ) control mode via external 1, 2 or 3 contacts for Start, Stop and Reset. Externally wired plates or boxes with push-buttons available.

Automatic Time error correction for DC clocks	Automatic correction of Real Time count in absence of time reference ( NTP, GPS or Master ) in DC supplied clocks, where power line frequency is not available.
Clocks for Emergency Vehicles	Special type of clocks for emergency vehicles for 12VDC supply. Included Low voltage and Transient protection. Also available additional, optional Remote Control Panel for operating the timer functions and for display of vehicle Right - Left turn and Stop lights.
Sync Repeater function	In larger Master-Slave systems with long communication lines, a repeater function can be enabled to boost the sync signal without adding additional hardware.

Kera Technologies Inc - Manufacturer of digital LED clocks, thermostats and timers

KERA Technologies Inc. designs and manufactures wide variety of Time and Temperature Control products.
We specialize in electronic, digital products with LED display for control and monitoring of real time and temperature.

For all custom design and manufacturing projects please contact our sales department
Toll Free: 1- 866- 829- 4253