a  siren is a loud noise making device. Civil defense sirens are mounted in fixed locations and Most fire sirens are single tone and mechanically driven by electric motors with a rotor attached to the shaft.
Automatic Bell, siren or
hooter .
- 25 different types of settings can be done
 - Operating Voltage 12V Dc
 - Can be used with your existing Bell or
     Siren (230V AC)
 - 4 Push Buttons for Time Settings with LCD
     Display & LED Indicators
 - Simple operation & settings, no
     computers required to program or maintain ringing schedule.
 - No battery required to maintain clock and
     stored program.
 - Weekly off: any day of the week can be
     selected as weekly off to cover all seasons of the year and special events
     of organization.
 - Monthly off: any date of month can be
     selected as monthly off.
 - Half day: Any day of week or any date of
     month can be selected as half day.
 - Second Saturday: User selectable second
     Saturday option.
 - Each bell can have different ringing
     duration.
 
Automatic school bell timer circuit is
useful for:
- Schools
     Bells, Periods, Lunch Break, Exam Time
 - Colleges
     – Automatic College Bell
 - Institutions
 - Factory
     Siren – End of Shift, Lunch or Recess, Tea Break
 
 Type of Industrial Siren:
- Control
     Rooms Siren
 - Electrical Control Panels Hooters
 - Power Stations – Hydroelectric, Thermal
     – Water Release Siren
 - Industrial Warning Sirens &
     Industrial Electronic Hooter
 - Factory Siren For Breaks
     & Factory Siren Indicating The End Of A Shift
 - Siren for Mines
 - Fire Siren
 - Air Raid Siren
 - Alert Systems
 - Evacuation Siren
 - Community Warning System
 - Warning And Announcements
 - Amusement Parks Siren
 - Security System For Banks & Offices
 
Siren code –
Typical Fire
Siren Code
For small fires       : No siren will be sounded.
For major fires       : Wailing type for 2 minutes. Siren shall be sounded three
times for 15
     
                          Seconds
with an interval of 5 seconds in between.
For disaster           : Same type of siren as in case of a major fire but the
same will be sounded 
                                three times at an interval of 2 minutes.
For all clear signals : Straight sound for
two minutes.
Test                       :
Straight sound for two minutes.
Major fire is declared by blowing
wailing type fire siren for two minutes as soon as second fire turnout is
taken.
Siren range
and HP rating, 
| 
   
audible Diametrical
  Range 
 | 
  
   
H.P. 
 | 
  
   
Price Rs.  
 | 
 
| 
   
0.25 km. 
 | 
  
   
1/8 
 | 
  
   
30,000/- 
 | 
 
| 
   
0.50 km. 
 | 
  
   
1/4 
 | 
  
   
32,000/- 
 | 
 
| 
   
1.00 km. 
 | 
  
   
1/2 
 | 
  
   
35,000/- 
 | 
 
| 
   
1.50 kms.– 
 | 
  
   
1 
 | 
  
   
38,000/- 
 | 
 
| 
   
2.00 kms.– 
 | 
  
   
1.5 
 | 
  
   
40,000/- 
 | 
 
| 
   
3.50 kms.– 
 | 
  
   
2 
 | 
  
   
45,000/- 
 | 
 
| 
   
5.00 kms.– 
 | 
  
   
3 
 | 
  
   
50,000/- 
 | 
 
| 
   
8.00 kms.– 
 | 
  
   
5 
 | 
  
   
60,000/- 
 | 
 
| 
   
11.50 kms. 
 | 
  
   
7.5 
 | 
  
   
90,000/- 
 | 
 
| 
   
16.00 kms. 
 | 
  
   
10 
 | 
  
   
1,20,000/- 
 | 
 
Note: Readers are requested to contact dealer or supplier. Blogger is not
responsible for price.


