Events/day
25 maximum
Tones
Straight-run (shift) & wailing (emergency)
Scheduling
RTC — set time, day, tone per event
Pre-warning
Early alert before shift start
Override
Manual push button anytime
Backup
Battery — works during power failure
The right shift change siren system depends on your environment. Loud motor siren for heavy industry. Soft voice announcement for clean workspaces. We help you choose — and install the right one.
At 6:00 AM, the night shift ends. At 6:02 AM, the day shift should be at their stations. Between those two minutes, a siren must sound — accurately, every day, without exception. If the person responsible is late, ill, or simply distracted, shift discipline breaks down and production suffers.
A shift change siren system automates this entirely. Programme your shift schedule once. The system handles it every day — accurately to the second, with no human intervention.
One absent or late bell operator affects the entire shift. During festivals, monsoon, and night shifts, this is a recurring problem.
Manual activation is rarely precise — shifts start 2–5 minutes late, which compounds to significant production loss across the year.
Using wailing (emergency) tone for shift change desensitises workers to real emergencies. Automated systems enforce correct tone discipline.
List all events: shift start times, shift end times, lunch break, tea breaks, monthly test drill. Typically 6–12 events per day.
Straight-run (continuous) for shift start/end and breaks. Wailing (rising-falling) for emergency drills only — never for routine events.
Standard: 15–30 seconds per event. Emergency drill: 3 minutes. Specify per event.
Enter time, tone, and duration for each event. The controller's real-time clock maintains accuracy through power cuts (battery backed).
Run a test activation of each event. Confirm siren sounds at the correct time and tone. Sign off the schedule — it now runs automatically.
| Parameter | Specification |
|---|---|
| Events per day | Up to 25 |
| Tone types | Straight-run and wailing (2 types standard) |
| Scheduling | Real-time clock (RTC), battery backed |
| Weekly programming | Different schedules per day of week (on request) |
| Manual override | Front panel push button — immediate activation |
| Output relay | N.O. dry contact, 5A 230V AC — drives any siren type |
| Power supply | 230V AC 50Hz |
| Enclosure | Surface mount panel, IP42 |
↕ Scroll down to see full specification table on desktop
Share your shift timings and siren type. We configure and supply ready to install.