four zones · replicated per active site.
Each mid-market site has the same four risks: nighttime site security, energy and generator, worker conditions (STPS), mess-hall cold chain and finish-area leaks. One platform replicated per site, executive cross-site dashboard.
nighttime site security
Perimeter PIR motion sensor + door sensors on critical access (equipment shed, field office) + people counter on access. WhatsApp alert to supervisor or local security in minutes. Anti-theft of equipment on weekends and night hours.
generator and fuel
Ultrasonic level sensor on diesel tank + generator current meter + generator-room temperature sensor. Current-signature analysis detects degradation 2-4 weeks ahead. Zero lost days from generator-off when power goes out.
STPS · dormitories and IAQ
Temperature + humidity sensor per worker dormitory + CO₂ / PM2.5 / VOC sensor in work zones. Smoke + CO detector in dormitories. Automatic NOM-011-STPS compliance · worker turnover reduced with documented conditions.
mess hall + finishes
Mess-hall refrigerator/walk-in cooler temperature sensor. Leak sensor under critical equipment in finished surfaces (model kitchens, sample bathrooms, freshly installed drywall). Cold chain protected + finishes defended.
Out of scope: construction ERP (Neodata, Opus, SAI) · BIM · crew scheduling. AstreaIoT does not replace them; if your ERP needs site operation data, we integrate via Custom Integration.
what we protect · what we prevent.
- +Perimeter watched at night and weekends · WhatsApp alert before equipment is stolen
- +Always-ready generator · scheduled preventive maintenance · diesel monitored
- +Automatic STPS · NOM-011 compliance · worker turnover reduced with decent conditions
- +Mess-hall cold chain protected · zero spoilage of worker food
- +Fresh finishes defended · leak sensor under every critical equipment before handover
- ✕Equipment theft $30-80K MXN per event + progress delay + replacement + insurance claim
- ✕Generator off on blackout · $15-40K MXN per non-working day · paid crews not producing
- ✕STPS fine from undocumented dormitory conditions · builder image damaged
- ✕Cold chain broken in mess hall · day product lost · workers unfed
- ✕Finishes destroyed by leak $50-200K MXN · delivery delayed · client claiming
ten use cases · four critical areas.
for the site manager.
Site Manager + Field Supervisor. Three cases · weekend equipment theft, subcontractor access without reliable record, nighttime vandalism in materials shed. Coverage when the supervisor is not physically there.
for the operations director.
Operations Director + Maintenance Lead. Two cases · stand-by generator out of fuel when power goes out, predictive maintenance on critical generator. Zero lost days from energy.
for the safety officer.
Safety Officer + HR Lead. Three cases · undocumented STPS in work zones, smoke + CO in worker dormitories, inadequate climate in dormitories. Turnover reduced with documented decent conditions.
for the CFO and field supervisor.
CFO + Field Supervisor. Two cases · broken cold chain in mess-hall walk-in cooler, water leak in finished surfaces before handover. Invisible costs turned into data.
three compliances · one platform covers all three.
For builders with 10+ simultaneous sites, national dashboard with per-site incident ranking · executive visibility without visiting every site.
from sensor to report · every five minutes · without human intervention
Five steps. They run in parallel across all your sites, all the time. When something crosses a threshold, the flow completes in under five minutes — alert delivered, response logged, inspector-ready evidence captured.
measure
Sensors measure temperature, humidity, current, door-open, leak and other magnitudes every five minutes — no operator required.
detect
The system compares each reading against the threshold configured per recipe · per site · per equipment. Threshold crossing triggers the flow.
alert
The alert routes to the right person via WhatsApp, email or push · per role and schedule configured.
respond
The operator acts from the dashboard or mobile app. The corrective action goes into an immutable log with timestamp + signature.
audit
Everything becomes part of the audit package · time series, critical events, corrective actions, NOM report ready in two clicks.
Five steps · no manual operators · no paperwork · no gaps.
five phases · per active site.
per-site survey
1 dayTechnical visit + inventory of perimeter, dormitories, generator, mess hall, finished surfaces · STPS checklist · construction-stage identification.
physical installation
1-2 daysSensors mounted on perimeter + shed + generator + dormitories + mess hall + finish zones · gateway with 32-hour backup · designed to move between projects.
configuration + calibration
1 daySTPS thresholds + day/night rules · noise sensor with local calibration · WhatsApp alerts configured per role (supervisor, site manager, safety).
team training
half daySite Manager + Field Supervisor + Safety Officer + Maintenance Lead · each role trains on their alert flow.
30 days of support + first review
30 daysAstreaIoT specialist available · per-site sensitivity adjustment · first monthly report delivered · cross-site dashboard activated.
Redeployable hardware: sensors are designed to move between projects · CapEx amortizable across 3-5 sites over 4-7 yr useful life.
common questions · before the quote.
are the sensors designed to move between sites?
Yes · sensors are portable · removed and mounted on the next site in 15-30 minutes. CapEx amortizable across 3-5 sites over 4-7 yr useful life. No penalty or de-installation fee.
what if the site does not have its own internet?
The gateway has cellular backup included. Works with field-office WiFi when available (preferred for speed) · or cellular modem as backup. No need to contract per-site internet.
does it integrate with the construction ERP (Neodata, Opus, SAI)?
Yes · via Custom Integration. Site operation data arrives directly in the ERP. Progress reports, STPS conditions, documented incidents in your central system.
how does the cross-site dashboard work?
Unified dashboard with per-site incident ranking · alerts filtered by severity and role. The regional manager sees their 10 sites · the plant manager only sees theirs · the executive director sees the whole portfolio.
what happens to sensors when a site finishes?
We recover the equipment · no penalty or fee. Sensors move to the next site in hours. Redeployable hardware is the model · not lost CapEx.
does the smoke + CO detector work in worker dormitories with dust?
Yes · detector certified for industrial conditions. Scheduled monthly calibration. Compatible with dusty, variable-temperature site dormitories. Zero false positives from dust.
can a site be added mid-project?
Yes · fast onboarding. Site survey + installation + configuration in 3-4 days. The site integrates with the cross-site dashboard immediately. Zero friction to scale the portfolio.