Siren range
0.5–16 km depending on model
Controller
RTC scheduled, 25 events/day
Emergency
Wailing tone — OISD-117 compliant
Remote
GSM SMS trigger option
Multi-site
Distributed master/slave system
Voice
Hindi/English PA announcement
We don't sell sirens. We design complete factory emergency warning systems — zone coverage, siren selection, control panels, tone codes, and compliance documentation — as one engineered solution.
A warning system is not a single product. It is an assembly of components — each selected for the specific conditions at your site.
Acoustic zone mapping based on site layout, building positions, and ambient noise levels. Identifies coverage gaps before installation.
Motor siren, electronic siren, hooter, or PA speaker — each zone gets the right device based on coverage requirement and environment.
Automatic scheduler, emergency buttons, manual override, event log — all in one OISD/ERDMP compliant siren control panel.
OISD-117, ERDMP, IS 6026 — system design drawings, siren code definitions, test protocols, and audit-ready documentation.
A complete factory warning system handles every scenario with a distinct, pre-programmed response — no confusion, no ambiguity, no missed actions.
Automatic or manual trigger. All zone sirens activate simultaneously in wailing mode.
Wailing 30s ON / 15s OFF × 3 cyclesScheduled daily activation. Distinct tone from emergency — workers never confuse the two.
Single 60s continuous wail — scheduledDifferent tone pattern from fire. Triggers evacuation protocol in affected zone only or site-wide.
Wailing 2 min × 3 repetitions — 1 min gapSteady straight-run tone — signals hazard passed, safe to return. Distinct from all emergency tones.
Steady 120s continuous — no wailWhen workers hear the same siren tone for a shift change and a fire alarm, they learn to associate it with a routine event. Over time, the emergency signal loses its urgency. OISD-117 mandates distinct, recognisable tone patterns for each emergency type precisely because of this alarm fatigue phenomenon. Every well-designed factory warning system uses at minimum 3 distinct tones — routine, urgent, and emergency. The ERDMP standard goes further, specifying exact wailing patterns for fire, disaster, and all-clear scenarios.
Measure ambient noise at all critical points during peak production. Identify coverage requirement for each zone.
Design acoustic zones, select siren type and rating for each zone, determine optimal placement heights and positions.
Specify control panel type, siren code patterns, scheduling requirements, and integration with fire/DCS/SCADA systems.
Produce system drawings, BOM, siren code register, OISD/ERDMP compliance checklist, and installation specification.
Every system we supply is designed against applicable Indian industrial safety standards — with documentation to prove it at your next audit.
Mandatory for all oil and gas facilities. Specifies emergency warning system design, siren tone codes, control panel requirements, and annual test protocols for refineries, depots, and pipeline stations.
Statutory requirement under PNGRB regulations for city gas distribution and pipeline operators. Defines specific wailing patterns for fire, disaster, and all-clear scenarios with mandatory documentation.
Governs the specification and performance of hand-operated sirens used as backup or portable emergency warning in oil, gas, and process industries. Required at many oil company facilities.
Each product is selected for a specific role in the system. We explain why we recommend what we recommend.
For large outdoor zones and perimeter coverage. Unmatched sound output — 16 km range. The standard choice for oil, gas, steel, and mining sites.
View ProductCompact, multi-tone units for indoor zones, control rooms, and areas within 100–300m of the device. Complements motor sirens in the same system.
View ProductProgrammes and fires the shift change schedule automatically. Integrates with the control panel for combined shift-change and emergency control.
View ProductThe compliance-grade control panel with Fire / Disaster / All-Clear / Test buttons, configurable siren codes, event log, and fire panel integration.
View ProductFor admin blocks, offices, or any zone where spoken announcements are more appropriate than siren tones. PA output, weekly schedule.
View ProductFor large campuses or multi-location sites where sirens are too far for hardwiring. Master-Slave network control from one dashboard.
View ProductQuestions from plant heads, safety managers, and EPC contractors.
Request System DesignShare your site layout and hazard zones. We design the siren network and quote within one working day.