When the alarm goes, one question matters: who has not reached the muster point yet? Identium’s mustering module turns every assembly area into a reader-covered zone, so personnel tags are picked up as people walk in — no queue at a badge reader, no warden ticking names on a clipboard. The board refreshes every three seconds while the event runs, and the safety officer exports the roll call as CSV for their own drill file.
A 184-person plant, an alarm, and the board filling up as people reach the assembly point — the tags, the reader at the muster point, the zones and presence window, and a straight answer on how to run it well.
Getting the most out of it: the board reads tags, so issuing tags at induction and collecting them on exit is what keeps the count matching your roster. It runs alongside your wardens and your emergency plan — turning a long roll call into a short one and handing the warden a named list to work from.
The real competitor to an electronic mustering system is not another vendor — it is a printed roster, a T-card board and a warden shouting names into an open yard. Here is where that breaks.
A printed roster or a T-card board reflects who signed in this morning, not who is on site now. Late arrivals, contractors who left after lunch and anyone who moved between buildings all sit on the wrong side of the count.
A manual roll call is a person calling out names against wind, traffic and an alarm sounder, waiting for a shout back. It is slow, it is easy to mis-hear, and the bigger the site headcount the longer it takes.
The mustering products we are usually asked to replace are access control with a muster mode: everyone has to present a badge or a face to a reader at the assembly area. That builds a line of people at exactly the moment you want them dispersed, calm and counted.
Multi-gate sites end up with a sheet per muster point and a total added by hand. Somebody gets counted twice, somebody gets missed, and nobody can say which until the sheets are compared afterwards.
When the safety officer writes the drill up, the only evidence is a marked-up printout in someone’s pocket. There is no clean record of who was accounted for, at which point, in what order.
The board is a browser dashboard that shows, per assembly point, who has arrived and who has not. The mechanism is deliberately simple — and we would rather explain it than dress it up.
A zone is simply the readers you assign to it, and whatever those readers hear is inside the zone. That keeps coverage to something a site survey can physically prove — and it means moving a reader moves the zone, with no floor plan to redraw.
During a drill or a real event the board polls the live zone endpoint every three seconds. Somebody walking into reader coverage at the assembly point appears on the mustered list within seconds.
At a muster point the presence window defaults to 300 seconds, so someone who steps a metre out of reader range stays firmly on the mustered list instead of sending a warden after a person standing right in front of them. The window is yours to tune per zone: five minutes suits an open assembly area, and a shorter window suits a tightly-covered one.
Each zone carries a capacity figure that drives an occupancy bar. On a multi-point site the incident controller can see at a glance which assembly area is filling up and which one is still nearly empty.
The roster is every tag row marked as Personnel. Subtract the people the muster readers can currently hear and you have the not-yet-arrived list — the names to go and look for.
Zones are typed — evacuation, muster, restricted, work, entry or general. Only evacuation and muster zones produce a roll call, so the board stays focused on the assembly points at exactly the moment that matters.
Every assembly area is covered by readers. As people arrive their tags are heard, the board updates on a three-second poll, and the not-yet-arrived list shortens on its own.
One screen, one status, one list that shrinks. Everything on it is either a live reading or an export you can hand to your own safety file.
Per-user modules mean a fire warden’s account can open onto the evacuation board and nothing else — no asset registers, no personnel records, no other part of the system. It answers the standard objection about giving thirty wardens a system login.
The board runs in a browser — on a control-room screen, a laptop at the gate or a tablet carried to the assembly point. To be clear: there is no native warden app, and we will not pretend otherwise.
As people reach the muster point the list of unaccounted names shortens on its own, so wardens know which names to chase first — and every warden is reading the same list at the same moment. It gives the sweep your procedure calls for a running head start.
When everyone is accounted for, the controller sets the board to all-clear so every warden and every screen shows the same status. It gives every screen the same status at the same time — alongside, not instead of, the radio or verbal all-clear your procedure requires.
The roll call exports to CSV from the browser so the safety officer can attach it straight to their own drill paperwork — the record is yours, held in your own file.
Anyone with a tag row marked as Personnel is on the roster, so long-term contractors are in scope from the day they are issued a tag. It is not a walk-up visitor system: no tag, no place on the roll call.
Two design decisions do most of the work: a zone is defined by which readers belong to it, and a presence window stops brief drop-outs from reading as missing people.
Active 2.4 GHz readers at the assembly points and choke points, one tag per person, one tag per piece of equipment you also want accounted for. Honest specifications, including the ones that constrain where things can go.
Four antennas in a single enclosure — omni and directional, 12 dBi dual-polarised — with TCP/IP and 4G backhaul, IP65 sealing and a −20 to +60 °C operating range. Mounted at gates, muster points and choke points.
We quote up to 100 m typical and 400 m line-of-sight, and we confirm the real figure on your site before committing to reader counts. Steel, concrete, antenna choice and mounting height all move that number, which is why we quote after walking your site rather than off a spec sheet.
Beacons every 500 ms, three-year battery, IP67, 86 × 54 × 4.5 mm. It is a 4.5 mm tapered clamshell with a moulded slot — not a credit-card-thickness card, so check it against any holders you already issue and plan on lanyards.
Beacons once a second, three-year battery, IP67, rated −20 to +45 °C, fixed with screw eyelets or a 3M VHB pad. Its home is equipment, vehicles and fixed assets — and for any personnel mounting we confirm on the site survey that the chosen spot stays inside that temperature range.
Both tags are specified at three years and are replaced on a planned cycle you run yourself. A scheduled swap at induction or annual shutdown keeps the whole fleet fresh and predictable.
Wired TCP/IP where there is cabling and 4G where a trench would be needed, so an assembly point at the far end of the yard goes live either way. The application can be hosted on your own server or a private VPS.
Survey first, quote second. And run the board alongside your existing roll call until your wardens trust it — we would rather you switch when the evidence says so.
We walk the site, place readers at gates, assembly points and choke points, and measure what those readers actually hear in your yard. The reader count comes out of the survey; the tag count comes out of your headcount.
The software platform is built and supported by Identium in India, and it can be deployed on infrastructure you control rather than a vendor cloud — we confirm the hosting and data-flow arrangement in writing during the survey. That matters on plants where a cloud-and-GSM-only architecture is a non-starter.
Admin blocks, workshops, warehouses, gates, car parks and assembly points outside any classified envelope. Areas with an explosive-atmosphere classification need certified equipment from a hazardous-area specialist — that is not us, and we will say so up front.
Mustering is a module of the Active Reader System, so the same active readers that cover your assembly points can serve day-to-day zone presence and asset visibility the rest of the year.
For the first drills, run the board and your existing paper roll call together and compare the two. Retire the clipboard when the comparison earns it — and keep a manual fallback in the plan regardless.
Mustering is one clearly-bounded part of an emergency plan. Here is exactly where it sits, so it is specified correctly and works with everything you already have.
Mustering picks up where detection leaves off. Your fire and gas systems call the evacuation; from that moment the board runs the roll call and keeps counting people in until the site is clear.
A warden or controller opens the board when the evacuation is called, and it runs on its own network path. That independence keeps your certified detection chain untouched and keeps the rollout clear of fire-panel change control.
The T505 and AT507 transmit their identifier continuously on 2.4 GHz. There is nothing to press, switch on or aim while people are moving — the tag does its job on the walk to the assembly point.
T505 and AT507 tags are IP67 and F529 readers IP65, rated for open assembly points, rain and hose-down areas. Specify it as personnel-accountability equipment working alongside your certified fire and gas systems.
At the muster point the safety officer exports the roll call straight from the browser — mustered and not-yet-arrived, per zone — to attach to their own drill file. Make saving it a named step in the drill procedure and the paperwork stays entirely yours.
The board shows the roster minus everyone the muster readers can hear, turning an open-ended search into a named list of a handful of people. Wardens work that list while the physical sweep runs alongside it, exactly as your plan already sets out.
The readers hear tags, so issuing tags at induction and collecting them on exit is what keeps the board matching your roster. Build tag issue into the gate procedure and the count stays trustworthy drill after drill.
An RFID mustering system is an electronic roll call for emergency evacuations. Personnel carry an RFID tag; readers at the assembly point detect those tags and a live board shows who has mustered and who has not yet arrived. It replaces a printed roster or T-card board with a screen everyone reads from, and an exportable roll call afterwards.
The personnel tag is an active 2.4 GHz beacon that transmits on its own — the T505 card every 500 ms, the AT507 puck once a second. Readers covering the muster point hear those beacons as people walk in, so nobody queues to tap a badge or scan a card. The board picks up arrivals within seconds.
They do different jobs and work together. Your detection and alarm systems call the evacuation; from that point the mustering board runs the roll call and produces the exportable record. Running independently, it sits alongside your certified detection chain rather than inside it.
It is your roster minus everyone the muster readers can currently hear — a short, named list of who has yet to reach an assembly point. Some may have walked to the other muster point or left site earlier, so wardens use it as their search list while the physical sweep runs alongside it.
Up to 100 m typical and 400 m line-of-sight, confirmed by site survey. Steel structures, concrete, antenna choice (the IDTS-F529 carries both omni and directional 12 dBi dual-polarised antennas) and mounting height all change what a reader actually hears, so we measure on your site before quoting reader counts.
They beacon continuously on 2.4 GHz — the T505 card every 500 ms, the AT507 tag once a second — so readers pick them up automatically as people arrive, with nothing to press or switch on while moving. Lone-worker duress is a different class of device; ask us and we will point you to one.
The board exports the roll call as a CSV from the browser — the mustered list and the not-yet-arrived list per zone — for the safety officer to attach to their own drill paperwork. The export is the record, so make saving it a named step in your drill procedure and the roll call lands straight in your own drill file. Anyone holding a tag marked as Personnel appears, so badged contractors are included.
Start with one assembly area and a site survey — we confirm real reader coverage before anyone commits to a reader count.