Automated WBGT Monitoring

Real-Time Heat Stress Monitoring for Your Job Sites. No Sensors. No Hardware.

HeatShield monitors WBGT conditions at every job site automatically — calculating actual heat stress risk based on temperature, humidity, radiant heat, workload, clothing, and acclimatization. Supervisors get instant alerts. Workers get clear guidance. Everything gets documented.

WBGT-based risk — not just heat index — updated every 30 minutes
Supervisor alerts at every threshold crossing — automatic, no manual checks
Every monitoring session logged and stored — inspection-ready records
No sensors or hardware — works on any phone, setup in 15 minutes
Start Your Free 7-Day Trial → No charge today. Full platform access.
HeatShield heat stress monitoring dashboard
Why Heat Index Isn't Enough

Your Phone's Weather App Is Giving Your Crew Bad Information.

The Problem

Heat Index Only Tells Part of the Story

Standard weather apps report air temperature and heat index. Heat index only accounts for temperature and humidity. It doesn't consider:

  • Radiant heat from sun exposure and surfaces
  • Workload intensity (sitting vs. shoveling vs. carrying)
  • Clothing and PPE (reflective vests, non-breathable gear)
  • Whether workers are acclimatized to the heat

A worker in full PPE doing heavy work in direct sun experiences dramatically higher heat stress than the heat index suggests. Monitoring with a weather app isn't just inadequate — it's a false sense of safety.

The HeatShield Approach

WBGT: The Standard NIOSH, ACGIH, and the Military Actually Use

HeatShield calculates WBGT — and adjusts for real-world field conditions:

Factor Adjustment Range
Clothing / PPE type +0°F to +18°F WBGT
Workload intensity Rest → Very Heavy
Radiant heat exposure Accounted for in WBGT
Acclimatization status Adjusted thresholds
The result is a heat stress risk level — Low, Moderate, High, or Extreme — that reflects what your specific crew is actually experiencing, not what the weather station recorded.
Platform Walkthrough

Set It Up Once. It Runs Automatically.

1
Add Your Job Sites

Enter a site address or ZIP code. HeatShield geocodes it to precise coordinates and begins pulling live weather data. No per-site fees.

2
Configure Monitoring Windows

Set start time, active workdays, and check intervals to match your crew's schedule. Monitoring runs automatically — no manual activation each day.

3
Supervisors Get Instant Alerts

When conditions reach a new risk level, supervisors are notified immediately — with current risk level, recommended actions, and triggering conditions.

4
Workers Get Clear Guidance

Workers receive a text link — no app download, no login. They tap it and see their current heat risk status and recommended protective measures.

5
Everything Gets Logged

Every condition check, risk transition, and alert delivery is timestamped and stored automatically. Export as PDF or CSV when you need documentation.

Beyond Monitoring

Monitoring Data Is Only Valuable If It's Documented.

Real-time monitoring tells you what conditions are right now. But when OSHA asks what conditions were on July 14th at 2:15 PM, and whether your supervisor was notified, and whether your crew had completed their training — that's where most systems fall short.

HeatShield stores everything. Every condition check, alert, and training completion is logged with a timestamp and accessible for export. Your monitoring data becomes your compliance record automatically.

  • Searchable monitoring history — conditions at every check interval, every day
  • Alert log — delivery time, content, and acknowledgment status per supervisor
  • Training records — completion status and certificates per worker
  • Compliance Packets (Pro) — organized, inspection-ready documentation exports
  • 12–36 months data retention depending on plan
Outdoor & Indoor Monitoring

Outdoor Sites Need No Hardware. Indoor Sites Use Yours.

For outdoor crews, HeatShield pulls live weather data from your job site's exact GPS coordinates automatically — no sensors, no devices, no IT project. For indoor environments, the PRO-tier Sensor API Integration connects your existing WiFi-capable hardware directly to HeatShield for live WBGT readings. Either way, setup takes under 15 minutes.

Other Monitoring Approaches
  • Hardware purchase required before you can start
  • Per-worker wearable devices workers must carry
  • Third-party cloud relay adds latency and cost
  • Hardware maintenance, battery replacement, failures
  • Enterprise pricing — no self-serve option
HeatShield
  • Outdoor monitoring: no hardware, ever
  • Indoor monitoring: connect your own sensor via API (PRO)
  • No per-worker devices — works on any smartphone
  • No third-party cloud relay for sensor data
  • Self-serve plans starting at $39/month

Sensor API Integration PRO

HeatShield Also Monitors Indoors — With Live Hardware Data.

Outdoor WBGT monitoring pulls weather data automatically. But indoor environments — warehouses, distribution centers, commercial kitchens — have their own climate that weather data can't reflect.

The PRO-tier Sensor API Integration lets your existing WiFi-capable temperature and humidity hardware POST readings directly to HeatShield. No third-party cloud relay, no manual entry. HeatShield uses the live reading to calculate WBGT, trigger threshold alerts at 82°F and 87°F, and build the indoor compliance record your heat illness prevention program requires.

  • ✓ Works with any WiFi-capable sensor that supports custom HTTP POST endpoints
  • ✓ Per-site API key — issued, managed, and rotatable by admins
  • ✓ Live reading and staleness status shown in the HeatShield dashboard
  • ✓ Recommended: Monnit ALTA gateway + temp/humidity sensor — supports custom HTTP push out of the box
  • ✓ Feeds live data into the same WBGT calculation used for outdoor sites
Sensor API Integration — PRO
Live Reading
84.2°F / 58% RH
● Live · Updated 42 sec ago
⚠ Threshold Crossed — 82°F
Tier 1 protections required · Supervisor notified
Site API Key
hs_live_••••••••••••••••
Managed by admin · Rotatable anytime
Built-In Compliance Training

Monitoring Proves the Conditions. Training Proves Your Crew Was Ready.

OSHA doesn't just want to see that you were watching the temperature. They want evidence that your workers knew what to do when it got dangerous.

HeatShield includes a built-in, OSHA-aligned heat illness prevention training course — assigned and completed directly through the platform. Certificates of completion are stored per worker and included in your compliance records.

  • 11-lesson course covering heat illness prevention for employees and supervisors
  • Accessible on any phone — no app download required
  • Progress tracked per worker
  • Certificates of completion stored and exportable
  • Included with every plan
HeatShield LMS training course overview
Trusted by Field Crews

Built for Real Conditions. Used by Real Crews.

★★★★★

"Perfect for my entire team. It gives me compliance peace of mind."

— Randy P.
★★★★★

"Easy to navigate and the concepts were clear and easy to understand."

— Lauren T.
★★★★★

"I loved the videos and the interactions — so much better than other trainings!"

— Justin O.
Common Questions

What Supervisors and Safety Managers Ask

HeatShield pulls live data from professional weather networks using the precise GPS coordinates of your job site — not the nearest city or airport station. Data is updated on your configured monitoring interval throughout the day.
Heat index only measures temperature and humidity. WBGT (Wet Bulb Globe Temperature) is a more complete measure of heat stress that accounts for radiant heat from the sun and surfaces. It's the standard used by NIOSH, ACGIH, and military heat safety programs — and it's what HeatShield uses.
Yes. All plans include unlimited job sites. You can group sites together using Site Groups to reduce alert fatigue across large operations.
Workers receive a text message from a recognized number (supervisor/manager) with a risk level alert change and recommended protective actions like rest/shade/hydration scheduling.
HeatShield's monitoring thresholds and documentation structure are aligned with state-specific requirements for California, Oregon, Washington, Colorado, and Minnesota. For operations spanning multiple states, the system applies the appropriate framework per site location. States with worker notice of rights are also integrated into the learning platform and saved to the reporting section in the application.
Both. For outdoor sites, HeatShield pulls live weather data automatically from the GPS coordinates of each job site — no hardware needed. For indoor sites like warehouses, distribution centers, and manufacturing floors, the PRO-tier Sensor API Integration lets you connect physical temperature and humidity hardware that POSTs live readings directly to HeatShield. Each site is configured independently as outdoor or indoor, so mixed operations run from a single account. Without the Sensor API, indoor sites still have full threshold documentation and compliance recordkeeping — just without automated live sensor readings.
The Sensor API Integration is a PRO feature that connects physical temperature and humidity hardware to HeatShield for indoor site monitoring. Your sensor POSTs live readings to HeatShield's endpoint using a per-site API key — HeatShield then calculates WBGT and fires 82°F/87°F threshold alerts in real time. We recommend the Monnit ALTA gateway + temperature/humidity sensor, which supports custom HTTP push with custom headers out of the box. Any WiFi-capable sensor that can POST to a custom HTTP endpoint will work.
PRICING

Everything You Need to Monitor. Everything You Need to Document.

No per-site fees. No hardware. No per-worker charges for monitoring.

Core

Automated monitoring for field operations

$ 39 /mo

Billed $468 annually

  • Unlimited job sites
  • Automated WBGT monitoring & risk transitions
  • Supervisor notifications & escalation
  • Configurable monitoring windows
  • Site Groups
  • 12-month data retention
  • PDF export
  • 10 training seats included*
  • Standard support
  • * $10/seat for additional users

Start with 7-Day Free Trial

No charge today (credit card required)

Most Popular

Pro

Extended Records, Reporting, Training & Indoor Sensor API

$ 59 /mo

Billed $708 annually

  • Everything in Core, plus:
  • Compliance Packet Downloads
  • Jobsite Templates
  • Sensor API Integration Indoor
  • Incident Reporting
  • Extended data retention (36 months)
  • PDF + CSV exports
  • 20 training seats included*
  • Priority support
  • * $5/seat for additional users

Start with 7-Day Free Trial

No charge today (credit card required)

Stop Guessing. Start Monitoring With Numbers That Hold Up.

No hardware. No app downloads. Setup in 15 minutes.