SiteOne

How it fits together

SiteOne, part by part

Scroll or tap a part. Press “See the 3D CAD design” to watch the model, built from our CAD, light each part up and show how it connects.

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Real-time 3D render · drag to rotate · final design may varySwipe sideways to rotate

1. 01

   The whole SiteOne

   The site's own full-height entry turnstile runs the gate: an entry camera on the street face checks PPE as people walk up, a radar in the canopy floor counts people in each turn, a tap reader in the reader head keeps the on-site list, heat, dust and sound sensors behind the side vents read the site's conditions, a site camera watches for smoke and the muster point, and the brain in the canopy turns that into PPE, on-site, tailgating, after-hours, heat, dust, smoke and noise calls on the turnstile's own lights and one app, over LTE-M.

2. 02Brain

   Raspberry Pi 5 (on the turnstile canopy floor)

   The brain: it runs the siteone-fw program

3. 

   03

   Entry and site cameras

   The entry camera on the street face, 35 degrees down, sees hard hat, hi-vis and boots as each person walks up; the site camera on the site face, 20 degrees down, watches over the site for smoke and the muster point

   Raspberry Pi 5 (on the turnstile canopy floor) · CSI-2 ribbons (both on the Pi 5's two camera ports, inside the canopy) · Entry frames at 10 fps while someone is at the reader; a site frame every 5 s; 10 s clips around calls

4. 

   04

   Rotor radar

   Looks down through a window in the canopy floor into the passage: how many people are in each turn, and the head count

   Raspberry Pi 5 (on the turnstile canopy floor) · UART · Up to 3 targets with position at 10 Hz

5. 

   05

   Tap reader and e-paper

   Site cards and phone passes tap in and out at the reader head; the e-paper shows the heat flag, the rest time and the PPE prompt; the PPE light shows red or green

   Raspberry Pi 5 (on the turnstile canopy floor) · I²C (PN532) + SPI (e-paper) + one data wire (light), in a cable up the street-side post · Pass IDs with in or out, flag and rest time, light colour

6. 06

   Heat, dust and sound

   Behind the side vents: SPS30 dust, SHT45 air temperature and humidity and a MAX9814 mic; a PT1000 on the black lid patch gives the sun load for the heat index

   Raspberry Pi 5 (on the turnstile canopy floor) · I²C (SPS30, SHT45) + SPI (MAX31865) + the mic level on an ADC pin of the Walter board (ESP32-S3) · PM1 to PM10 every second, air and sun-load temperatures every minute, a sound level every second

7. 07

   Call lights, voice, secure element and tamper

   Red, amber, green or white on the street and site faces with a tone and a voice prompt; every call signed; the tamper switch marks the log when the lid is lifted

   Raspberry Pi 5 (on the turnstile canopy floor) · One data wire (lights) + I²S (amp) + GPIO + I²C · Light colour and flash, tone, voice prompts, signatures, tamper flag

8. 08

   Power, backup and LTE-M

   5 V from the turnstile's own mains feed; a LiPo keeps the Walter board holding the on-site list and sending the muster list over LTE-M when the site power is off

   Raspberry Pi 5 (on the turnstile canopy floor) · 5 V rail + UART to the brain · Power about 3.2 W watching, 6.5 W at shift start (est.); calls and the 5-minute log over LTE-M

9. 09

   All connected

   7 key parts, one program, and your phone

Our circuit board · rev A-0

One board of our own inside SiteOne

Every chip on one board we design, shaped to fit: the processor, cameras and sensors, Wi-Fi and Bluetooth, lights, sound and power. No plugs, ribbons or adapters. It is checked in our CAD against every part around it, and it arrives from the maker ready to run our software from a microSD card. Turn the model, or pick a part below to see where it sits.

Demo · 6 real-world moments

See SiteOne work

Short animated scenes of real moments: what happens today, what SiteOne does about it, and what lands on your phone. The same scenes play in the IEMI app.

Demo scenes show how SiteOne and its app are designed to behave. SiteOne is in design; nothing here is recorded from real equipment yet.

The idea

The site's own entry turnstile checks PPE, keeps the on-site list, calls tailgating and sets the heat flag

How the parts connect

SiteOne, wired up

Every part, what links it to the brain, and how the data reaches your phone. A solid line is a cable; a dashed line is a radio link.

The program

What controls SiteOne

while True:
    tap = reader.poll(); turn = gate.turned(); n = radar.count()
    calls = []
    if tap:
        ppe = ppe_model(cam_in.burst(10))
        calls += ppe_rule(tap, ppe); gate.hold_entry(not ppe.ok)  # exit never held
    if turn:
        calls += ledger.turn(tap, n)        # on-site list, tailgating
    calls += after_hours(cam_in, n, clock) + heat_rule(sht.read(), pt.read())
    if due(5):
        calls += smoke_rule(cam_site.frame()) + dust_rule(sps.read()) + noise_rule(mic.level())
    if gate.fire_alarm():
        calls.append(ledger.muster())
    for c in calls:
        if c.conf < c.line: c.kind = 'check'   # never guess
        atecc.sign(c); lights.show(c); uplink.send(c)
    time.sleep(0.05)

To your phone

How the data reaches SiteOne gate app

Site manager, supervisors, the fire marshal and the contractor's safety lead; a web page for the office (Android, iPhone, web)

1. SiteOne turnstile
2. LTE-M (or the site Wi-Fi, WPA3) · MQTT over TLS
3. IEMI cloud (the contractor account)
4. Push, SMS and web; CSV and webhook export to the contractor's site system
5. Site manager, fire marshal, safety lead and the office

Key specs

Targets for production units; they may change during development.

Pricing

Target pricing. Bought separately per entrance: a plain single-lane full-height turnstile (about $7,500, est.; makers quote only) with a sign-in and access service (about $150/month, est.), PPE Gate AI ($899 + $29/month) and HeatGuard AI ($699 + $19/month): about $9,098 + $198/month (est.).

Indicative launch pricing in USD, excluding taxes and shipping. Final pricing is confirmed before any balance is charged.

1. 4 Nov 2026, 08:05LatestA principal contractor buys SiteOne as the site's pedestrian entry turnstile: the same full-height turnstile in the hoarding line, which must still turn freely in the exit direction on a power cut or a fire alarm (IBC 1010.3.1, https://codes.iccsafe.org/content/IBC2021P2/chapter-10-means-of-egress). So the electronics must be boards an assembly house makes and tests the same way every time, inside the turnstile's own steel canopy and reader housing, wired only to the controller's entry-hold input.

   • What we designed: boards of our own inside the turnstile's 1,400 × 1,400 × 200 mm steel canopy and its reader housing, the last product in our board programme. An 8-layer main board lies flat on the canopy floor near the street wall with the processor and a heat block straight to the shaded steel floor, memory, the security chip, the latched microSD card, a motion chip, LTE-M with a soldered eSIM and Bluetooth; the radar chip hangs under it, looking down through the floor into the rotor. A street strip on a flex carries the entry camera, the call lights, the buzzer, the voice amp, a noise mic and the lid tamper sensor. A site board carries the site camera and the site light; a side board the air chip and the sun-load sensor behind the vent; a power board the supply, one backup cell and the controller contacts; and a reader board in the reader head the tap chip, the e-paper and the PPE light.
   • How we checked it: the boards are written as code and opened in KiCad (0 design-rule violations). The code places 110 parts at their sizes and checks no overlaps, the heights in every gap, every board inside the canopy or the reader head, the radar tab clear of the main board, the lights behind their slots, the e-paper in its window, the air chip behind the vent, the lead voltage drops, and that every call from the CAD (hard hat, vest and boots at the mouth, the next person in the queue, a person at the reader after hours; smoke over the site and to the side, the muster point, people leaving; one or two people in each compartment) is in view through its window. The shared design review gives 16 pass, 5 fixed, 9 to prove and 0 fail, and writes the quote pack.
   • What we learned: a closed steel canopy stops LTE-M and Bluetooth, so a puck antenna now goes through the lid at 2.4 m, out of reach. Boots at the turnstile mouth lie 72° off the street wall, so the round 14 mm camera window became 40 × 42, and the site window 24 × 26. The radar window moved over the front compartment so the radar chip can sit on a short hinge under the processor board, and still sees the back compartment. The reader head's e-paper window shrank so the panel covers its edge, and the PPE light got a slot to shine through. All drawn in the CAD the same day. The egress stays the controller's: our boards can hold one entry, never the exit.
   • What is next: every product in our line now has its own boards. Next the board work goes back to CricketOne's phase 2 rows, and each later CricketOne board lesson is carried to all 24 boards in the same run. For SiteOne: the tab brackets, mic duct and boards inside the turnstile CAD with every part checked in 3D, the canopy temperature in summer sun, the turnstile makers' controller wiring, and LTE-M through the puck. See the boards at /build/siteone-boards.

   See it in 3DFull research and design

2. 29 Oct 2026, 04:15A contractor running a site with one pedestrian gate and no gateman needs every person checked for a hard hat, hi-vis and boots, a right list of who is on site for the fire marshal, and a heat flag the crews follow. Today it buys or hires a full-height turnstile ($4,600-14,350 a lane installed in a 2026 US guide from Coram, or £215 a week to hire from Portable Space), pays for sign-in, and adds PPE camera software or a heat station.

   • Buyer check with sources: 2026 full-height turnstile prices, weekly hire rates in the UK and Europe, PPE detection sold inside site camera subscriptions, and the US heat rule status (still a proposal; the heat emphasis program was renewed in April 2026 to run to 2031, which corrects our rev A note)
   • What we learned: sites hire turnstiles by the week as often as they buy them, and PPE checks are moving into camera subscriptions that report after the fact; nobody makes the turnstile itself hold the one entry that is missing a hard hat
   • Parts list prices checked on shop pages today: $5,739 per entrance at qty 1, of which $511 is our electronics; the 4 GB Raspberry Pi 5 is now $130, so the brain is the same-size 2 GB at $90, and the dust sensor and cameras cost more than we had
   • Price kept at $8,990 + $99 a month per entrance; cost about $6,439 at qty 1 and $5,210 at qty 100, a 28 % to 42 % margin (est.), resting mostly on the turnstile price from the maker
   • All 23 part fit checks and 12 camera and radar views in the CAD still pass; about 19 h of on-site list and muster in a power cut rechecked; CAD review clean with no floating parts and no collisions
   • Product page: the first three FAQs answer why not a turnstile and a PPE camera service, what it costs, and whether it can be hired or fitted to a turnstile already on site; a power and size spec group
   • Next: three questions for contractors in customer reviews (hire or buy, a canopy kit for their own turnstiles, which call matters most and whether the signed gate log is accepted), then BayOne for waste and recycling

   See it in 3DFull research and design

3. 28 Oct 2026, 12:30A contractor needs one thing at the site gate that checks PPE on every entry, knows who is on site when the fire alarm sounds, stops tailgating, and sets the heat flag, without a gateman. Full-height turnstiles are already standard at controlled sites (Sunbelt Rentals hires them; one US rental hub lists a 2-lane access-control turnstile at $1,875 per 4 weeks), but PPE cameras and heat stations are bought separately on their own poles, and OSHA's heat rule is still only a proposal, so sites run their own heat plans.

   • Market check: who buys one product per site gate (general and principal contractors, quarries, mine surface entrances), what they pay for turnstiles and sign-in (Sunbelt Rentals, Whiting-Turner rental hub $1,875 per 4 weeks, Ramirent about €1,352 a month, Eyrus, MSite), where OSHA's heat rule stands, and the egress, headroom and protrusion rules (IBC 1010.3.1 and 1003.3, ADA 307.2, CDM 2015); sources in DESIGN.md
   • New CAD: the single-lane full-height turnstile (1,400 x 1,400 x 2,403 mm, 787 mm passage) with its canopy, lid and reader head: a Raspberry Pi 5 brain, an entry camera and a site camera, a radar looking down into the rotor, dust, air, sun-load and sound sensors, call lights, a voice prompt, LTE-M, a backup cell, a secure element and a tamper switch inside; a tap reader, an e-paper heat flag and a PPE light in the reader head; 23/23 parts fit from datasheets, 12 camera and radar views checked, no collisions, no floating parts
   • equipment.json: 10 rules met (free exit, passage width, accessible gate, headroom, protrusion, same size, site access, PPE, privacy, radio); 8 calls (5 alone), 4 impact cases and every security key
   • idea.json gate plan, integration.json (6 parts, 5 app screens with a No gateman on site mode), bom.csv (about $5,690 an entrance with the plain turnstile, est.), buy.json with 10 key parts
   • New product page at /products/siteone/ in Construction & Mining: $8,990 + $99/month per entrance against about $9,098 + $198/month bought separately (est.); folds PPE Gate AI and HeatGuard AI; DustWatch AI (cutting benches) and SmokeSentinel AI (wildfire) stay listed; next: F17 Waste and recycling

   See it in 3DFull research and design

4. 28 Oct 2026, 12:30A contractor needs one thing at the site gate that checks PPE on every entry, knows who is on site when the fire alarm sounds, stops tailgating, and sets the heat flag, without a gateman. Full-height turnstiles are already standard at controlled sites (Sunbelt Rentals hires them; one US rental hub lists a 2-lane access-control turnstile at $1,875 per 4 weeks), but PPE cameras and heat stations are bought separately on their own poles, and OSHA's heat rule is still only a proposal, so sites run their own heat plans.

   • Now part of SiteOne: https://iemilabs.com/products/siteone/

   See it in 3DFull research and design

5. 28 Oct 2026, 12:30A contractor needs one thing at the site gate that checks PPE on every entry, knows who is on site when the fire alarm sounds, stops tailgating, and sets the heat flag, without a gateman. Full-height turnstiles are already standard at controlled sites (Sunbelt Rentals hires them; one US rental hub lists a 2-lane access-control turnstile at $1,875 per 4 weeks), but PPE cameras and heat stations are bought separately on their own poles, and OSHA's heat rule is still only a proposal, so sites run their own heat plans.

   • Now part of SiteOne: https://iemilabs.com/products/siteone/

   See it in 3DFull research and design

Smart equipment · legal on the field

SiteOne is the single-lane full-height site entry turnstile, made smart

It replaces the site's plain hired or bought full-height turnstile in the hoarding line, in the same size, on the same baseplate, with the same rotor, reader position, controller and mains feed; the site keeps its own accessible and emergency gate beside it, with every part built in. Everything inside the plain turnstile's 200 mm canopy and its reader housing: brain, two cameras, radar, dust, air, sun-load and sound sensors, call lights, tone, speaker, LTE-M, backup cell, secure element and tamper switch. About +1.4 kg over a plain turnstile of about 450 kg (est.); no mast, tripod, hoarding box or pole camera.