Kestrel Heat Stress Monitoring System (WGBT)
Ensure worker safety & regulatory compliance with the Kestrel® Heat Stress Monitoring System. With real-time remote access to critical data, leaders have the information to make timely decisions to prevent workplace heat-related injuries and incidents. The Kestrel 5400 Heat Stress Tracker with LiNK wirelessly connects via Bluetooth to the easy-to-read, wall-mounted remote monitoring tablet showing current data. Use the Kestrel LiNK app to manage and log work conditions, view graphs, and create shareable reports.
Stay aware of real-time workplace conditions even when you’re offsite. The Ambient Weather Network (AWN) cloud-based online portal and app offers remote monitoring capabilities for 24-7 visibility, including a custom dashboard for tracking weather data and the ability to set alerts for changing conditions.
| Measurement | Accuracy (+/-) | Resolution | Sensors Deployed |
| Air Density | 0.0002 lb/ft3 0.0033 kg/m3 | 0.001 lbs/ft3 0.001 kg/m3 | Temperature Relative Humidity Pressure |
| Air Flow | 6.71% | 1 cfm 1 m3/hr 1 m3/m 0.1m3/s 1 L/s | Air Flow User Input (Duct Shape & Size) |
| Altitude | typical: 23.6 ft/7.2 m – 50 to 1100 mBar max: 48.2 ft/14.7 m – 300 to 750 mBar | 1 ft 1 m | Pressure User Input (Reference Pressure) |
| Barometric Pressure | 0.07 inHg 2.4 hPa|mbar 0.03 PSI | 0.01 inHg 0.1 hPa|mbar 0.01 PSI | Pressure User Input (Reference Altitude) |
| Crosswind & Headwind / Tailwind | 7.1% | 1 mph 1 ft/min 0.1 km/h 0.1 m/s 0.1 knots | Wind Speed Compass |
| Delta T | 3.2 °F 1.8 °C | 0.1 °F 0.1 °C | Temperature Relative Humidity Pressure |
| Density Altitude | 226 ft 69 m | 1 ft 1 m | Temperature Relative Humidity Pressure |
| Dew Point | 3.4 °F 1.9 °C 15-95% RH. Refer to Range for Temperature Sensor | 0.1 °F 0.1 °C | Temperature Relative Humidity |
| Evaporation Rate | 0.01 lb/ft2/hr 0.06 kg/m2/hr | 0.01 b/ft2/hr 0.01 kg/m2/hr | Wind Speed Temperature Relative Humidity Pressure User Input (Concrete Temperature) |
| Heat Index | 7.1°F 4.0°C | 0.1 °F 0.1 °C | Temperature Relative Humidity |
| Moisture Content | Humidity Ratio (“Grains”) | .3gpp .4g/kg | 0.1 gpp 0.01 g/kg | Temperature Relative Humidity Pressure |
| Relative Air Density | 0.3% | 0.1% | Temperature Relative Humidity Pressure |
| Wet Bulb Temperature – Psychrometric | 3.2 °F 1.8 °C | 0.1 °F 0.1 °C | Temperature Relative Humidity Pressure |
| Wind Chill | 1.6 °F 0.9 °C | 0.1 °F 0.1 °C | Wind Speed Temperature |