This is a complete Plug N play timer Plus Horn package
rated at 12VDC and 103 dB  this will be best suited for larger industrial and areas where employess wear ear plugs.

the duration of the horn blast can be set  from 1 second to 99 seconds
and up to 50 times per day
you can also select weekend off

timer comes complete ready to work out of the box

all parts are included

1 timer
1 timer and horn power supply
20 foot horn hook up wire

timer has built in battery back up in case of power outage the timer will not loose any settings and when power is restored the timer will go back to regular time
has built in daylight savings correction if this is used in your area.

Stanard Timer will power up to 2 connected buzzers if more than 2 buzzers are required then we need to upgrade the power supply (Add $60.00)  the upgraded power supply will power up to 5 buzzers