Call or send email for more information and pricing.
Distributors and OEM orders welcome. We make clocks and displays to your specifications.
KERA Technologies Inc.
Jumbo LED Digital Clocks with REMOTE CONTROL
SELENA
Accessories for SELENA Clocks and Timers
E-mail:  sales@ledclocks.com
APPLICATIONS

HOSPITAL
SCHOOL
AIRPORT
MILITARY BASE
MARINE VESSELS
SHIPS, BOATS
SUBMARINES
BANK
STADIUM
GYM
CHURCH
SUBWAY STN.
BUS STN.
RAILWAY STN.
LED Clocks
and Timers
E-mail:  sales@ledclocks.com
Sirens and Buzzers for programmable timers and counters
Toll Free:  1-866-829-4253
115 dB sound, 20 Watts power
5" x 8"  ABS plastic
6-15VDC supply
May be powered externally
or directly from the clock
if option # 729PS installed
Option # 729HP
High Power External 8 inch
All-Weather Horn / Buzzer / Siren
Option # 729MP
Medium Power External 4 inch
All-Weather Horn / Buzzer / Siren
Option # 729PZ
Medium Power External 2 inch
Piezo Horn / Buzzer / Siren
110 dB sound, 10 Watts power
4" Dia. ABS plastic
6-15VDC supply
May be powered externally
or directly from the clock
if option # 729PS installed
105 dB sound, 3 Watts power
2" Dia.  ABS plastic
6-15VDC supply
May be powered externally
or directly from the clock
if option # 729PS installed
Option # 729LPW
Low Power Piezo
Alarm Buzzer
Option # 729LPX
Low Power Piezo
Alarm Buzzer
110 dB sound, 0.5 Watt power
1.5" Dia. ABS plastic
6-24VDC supply
Powered directly from the clock.
110 dB sound, 0.5 Watt power
1.5" Dia. ABS plastic
6-24VDC supply
Powered directly from the clock
Temperature Probes and Sensors  ( for options # 711, 712, 713, 714B and 714C )
The internal buzzer is not very loud and for applications where a loud Horn or Siren is needed,
an external Horn / Buzzer may be installed. It can be controlled by the clock internal relay ( option # 727 ) that is operated automatically by the programmable timers, counters or temperature alarms.
All SELENA clocks include Internal Piezo Buzzers for Alarms
initiated by the clock timers, counters or temperature monitors..
The temperature monitoring, programmable thermostat and control options require an internal or external temperature sensor probe. The standard sensor normally included with the selected option may not be the most suitable model for each application and therefore a specific probe model may be ordered.
The selection below shows some of the available models and mounting accessories.
NOTE, that the probe wiring may be extended up to 500 ft ( 150 m ) with any type of a 2-conductor cable.
NA7100KB4100BLK


NA7100KB4100CHR


NA7100KB4100RDT



NA7100KB4100SQT


NA7100KB4100DPD


NA7100KB4100SHD



PT1000TC38550MM




NA7100KB4100PIPTR
SELECTION of standard Temperature Probes :
OPTIONAL Plastic or Metal (SS)
Sensor Probe Plate
(model PPP4 or PPS4 ).
OPTIONAL:
Sensor Probe Guard
model PG5 (black or grey ) .
Thermowell model:
SSTW-114-066-050NPT
Stainless Steel
Stem = 4-1/2"
Bore = 0.26"
1/2 NPT thread
Thermowell model:
SSTW-114-066-075NPT
Stainless Steel
Stem = 4-1/2"
Bore = 0.26"
3/4 NPT thread
Thermowell model:
SSTW-41-066-050NPT
Stainless Steel
Stem = 1-5/8"
Bore = 0.26"
1/2 NPT thread
Thermowell model:
SSTW-64-066-050NPT
Stainless Steel
Stem = 2-1/2"
Bore = 0.26"
1/2 NPT thread
Thermowell model:  BTW-100-05-075NPT
Brass, Stem = 4" , Bore = 0.2", 3/4 NPT thread
Thermowell model:  BTW-25-05-075NPT
Brass, Stem = 1" , Bore = 0.2", 3/4 NPT thread
Thermowell model:  BTW-25-05-025NPT
Brass, Stem = 1" , Bore = 0.2", 1/4 NPT thread
Protective Guards / Covers for clocks  ( option series # 745 type A and B )
In some installations like Gym, Bus Station, Swimming Pools etc..., the clock may have to be protected against accidental damage by a flying object or debris. The protective covers made out of Acrylic or Lexan are highly impact resistant and fully transparent.
SPECIFICATIONS:

Material: TRANSPARENT ACRYLIC or LEXAN
Wall Thickness:   3/16" (4.75 mm )

Model # 745ACA4 and # 745LXA4
Dimensions for 4 inch, 4 and 6 digits models:
Overall:   20" x 11" x 5"   (50.8 cm x 28 cm x 12.7 cm)

Model # 745ACA7 and # 745LXA7
Dimensions for 7 inch, 4 and 6 digits  models:
Overall:   36-3/8" x 16-3/8" x 5"   (92.4 cm x 41.6 cm x 12.7 cm)

Model # 745ACA7L and # 745LXA7L
Dimensions for 7 inch, 6 and 8 digits, and special models:
Overall:   52-3/8" x 16-3/8" x 5"   (133 cm x 41.6 cm x 12.7 cm)

Model # 745ACB74 and # 745LXB74
Dimensions for 7 inch, 4 digits models:
Overall:   25-3/8" x 11-1/8" x 4-3/4"   (64.5 cm x 29 cm x 12 cm)

Model # 745ACB76 and # 74LXB76
Dimensions for 7 inch, 6 digits models:
Overall:   36-3/4" x 11-1/8" x 4-3/4"   (93.3 cm x 29 cm x 12 cm)
RS232 to RS485 serial CONVERTER module  ( option # 901 )
This converter may be used to provide RS485 serial communication where only RS232 or USB port is  available.
One side plugs into RS232 serial port or extension cable and the RS485 wires may be connected to the terminal block on the other side.
RS485 communication allows for sending reliably fast data over long distance using just a simple pair of wires ( 2-conductor cable ) that does not have to be shielded.
USB to RS232 serial CONVERTER module  ( option # 903 )
This converter may be used to connect a USB port in computers to an RS232 serial device.

One side plugs into the USB serial port or extension cable and the RS232 side 9 pin connector may be connected to the device or an extension cable
Option # 729HPCO
High Power Compact  External 4 x 4 inch
All-Weather Horn / Buzzer / Siren
118 dB sound,15 Watts power
4" x 4" x 4"  ABS plastic
6-15VDC supply
May be powered externally
or directly from the clock
if option # 729PS installed
The battery can be fully recharged by connecting the automatic battery charger that can be plugged directly into the power line outlet.
Battery Backup Supply BK12V7H2A and Automatic Charger BCH1205
For 2.3 inch displays:
For 4 inch, 4 digits displays:
For 4 inch, 6 digits displays:
For 7 inch, 4 digits displays:
For 7 inch, 6 digits displays:
Model BK12V7H2A battery and model BCH1205 charger
For LED clock / timer models for 12VDC supply, an external 12V battery is necessary.
It allows the display to run for several hours per charge and it requires a battery charger.
For use where the power line is not available
TIMER / COUNTER  remote Push-Button Box 
( Model series # PBMXYZ(C) in metal and # PBPXYZ(C) in plastic  )
For use with option # 738, external Start/Stop/Reset  terminals for timers and counters
NOTES:
-   Other box sizes available upon request.
-   Vandal-proof, water-tight pushbuttons in various colors with standard or custom legend labels.
-   Available with or without connector.
    Available without or with cable at custom lengths..
X = Number of Push-buttons:
0 = no push-buttons
1, 2, 3 = 1, 2 or 3 push-buttons
Y = Box Size:
Aluminum:  
1 = 4.39" x 2.34" x 1.06 " ( 112mm x 60mm x 27mm )  ( for 1 to 3 pushbuttons )
2 = 3.64" x 1.52" x 1.06 " ( 93mm x 39mm x 27mm )  ( for 1 to 2 pushbuttons )
ABS Plastic:  
1 = 4.4" x 2.5" x 1.1 " ( 113mm x 63mm x 28mm )  ( for 1 to 3 pushbuttons )
2 = 3.3" x 2.2" x 0.8 " ( 85mm x 56mm x 21mm )  ( for 1 to 2 pushbuttons )
G = Grey
B = Black
Z = Box Color:
NOTE: Custom colors and sizes available.
Thermowells for Temperature Probes and Sensors
C = Connector:
Box  with Cable Connector
GPS Receiver with Internal Antenna 
Model for stationary installations
( option # 725GPS )
GPS Receiver with Internal Antenna 
Model for mobile installations
( option # 725GPSV )
-   High sensitivity
-   Waterproof housing with strong magnet base
-   Additional screw mount in the base
-   Diameter: 2.4" ( 61 mm )
-   Height:  0.76"  ( 19.5 mm )
-   15 feet ( 4.5 meters ) cable
-   Operating Temp.-22F to +175F  ( -30C to +80C )
-   High sensitivity
-   Waterproof housing with mounting shaft
-   Mounting hardware included
-   Diameter: 2.44" ( 62 mm )
-   Height:  0.82"  ( 21 mm )
-   15 feet ( 4.5 meters ) cable
-   Operating Temp.-40F to +185F  ( -40C to +85C )
The display operating times at low to medium brightness:
up to  14 hours
up to  14 hours
up to  12 hours
up to  7 hours
up to  6 hours
The actual model may not be exactly as shown.
Toll Free:  1-866-829-4253
TIMER / COUNTER  remote Push-Button Plates 
Model series # SPB-X in steel and # PPB-X in plastic
( X = number of push-buttons  )
For use with option # 738, external Start/Stop/Reset  terminals for timers and counters
NOTES:
-   1, 2 or 3 push-buttons available.
-   Vandal-proof, water-tight pushbuttons in various colors with standard or custom legend labels.
-   Plate Dim's: 4.75" x 2.75" x 0.2" ( 121mm x 67mm x 5mm )  Fits over standard 1-gang wiring box.
SPB-3
SPB-2
PPB-3
PPB-2
Model PBM31GC  shown
EXTERNAL Power Line Carrier Modem 
Option # 902 and # 902PH3
The power line modem (PLC Modem) is a dedicated device for transferring data over the power line wiring.
The PLC Modem uses the power line wiring as the communication medium.
It eliminates the need to lay additional cables for communication.
Option # 902:
Option # 902PH3:
1-phase, external PLC modem
3-phase, external PLC modem
Power line voltage :
Ambient temperature :
Relative humidity :
Carrier frequency :
Data input :
Data Baud rate :
85---250VAC, 50/60 Hz.
-18F ~ +122F ( -10C ~ +50C )
95%, non-condensing
115 kHz or 82 to 88 kHz
RS232, 9 pin D-shell
300, 600 or 1,200 bps
EXTERNAL ALARM LIGHTS
120Vac, 50/60 Hz.
20 W
4.25" DIA x 5.63" High
108mm DIA x 143mm High
3 lbs ( 1.5 KG )
Supply voltage :
Power :
Size :

Weight ::
ROTARY ALARM LIGHTS
Amber/Yellow:
Green:
Red:
Blue:
Models:
Specifications:
FLASHING LED ALARM LIGHTS
Model FLD-011W:
Model FLD-011C:
Supply voltage :
Power :
Flash Freq. :
Size :

Weight ::
120Vac or 240Vac,  50/60 Hz.
10 W
Max. 10 flashes / sec
4.72" x 3.15" x 1.97"
120mm x 80mm x 50mm
0.66 lbs ( 0.3 KG )
Specifications:
WHITE LED Lights
WHITE / GREEN / RED LED Lights
FLR-010Y
FLR-010G
FLR-010R
FLR-010B: