Sounding a siren for Iftaar and Sehri

If the siren doesn’t contain any music, nor does it sound like a bell, etc. then there is no harm in sounding the siren for Iftaar or Sehri. It is merely used to inform the people that the time of Iftaar has set in, or the time of Sehri will soon be ending, hence, it cannot be considered as a Bid’ah. By the time Adhaan is called out at Maghrib, all would have completed their Iftaari (with dates and water), and they may now respond to the Adhaan.

However, if similar sirens are being used by hearses or, certain hooters sound like the siren, then it will be better to call out the Adhaan (instead of using the siren) as one could possibly be confused and make Iftaari before the stipulated time.