Uploaded August 2020 | Updated September 2026, 2 weeks ago
Two different angles of a one-minute 'Alert' test of our recently-purchased Secomak GP1 '"Syren".
Siren Information:
This is a fine example of a circa-1980 Secomak GP1 "Syren", which we purchased off eBay for a fair price, in essentially as-built condition. We knocked out one of the blanking plugs, and wired it for 240v 1amp Mains Electric operation using two-core wire. The manufacturer's documentation states that this siren will output a 950Hz sound, which is 121dB at one metre away. A sound level of 60dB is present at approximately 0.683miles away in ideal conditions.
These two tests were conducted indoors, and whilst audible outside, the sound of the siren was not particularly noticeable due to the walls of my house.
This video has been brought to you by al66class59.
(C) al66class59. Do not post this video (or any part of it) on your channel without my permission, or appropriate action will be taken against your channel.
Two different angles of a one-minute 'Alert' test of our recently-purchased Secomak GP1 '"Syren".
Siren Information:
This is a fine example of a circa-1980 Secomak GP1 "Syren", which we purchased off eBay for a fair price, in essentially as-built condition. We knocked out one of the blanking plugs, and wired it for 240v 1amp Mains Electric operation using two-core wire. The manufacturer's documentation states that this siren will output a 950Hz sound, which is 121dB at one metre away. A sound level of 60dB is present at approximately 0.683miles away in ideal conditions.
These two tests were conducted indoors, and whilst audible outside, the sound of the siren was not particularly noticeable due to the walls of my house.
This video has been brought to you by al66class59.
(C) al66class59. Do not post this video (or any part of it) on your channel without my permission, or appropriate action will be taken against your channel.
