Kestrel 5400 WBGT Heat Stress Tracker (HST) & Weather Meter

The Kestrel 5400 WBGT Heat Stress Tracker (HST) is a compact and highly accurate handheld meter designed for monitoring Wet Bulb Globe Temperature (WBGT) and environmental conditions in workplaces, sports fields, military operations, industrial sites, and outdoor safety applications. It helps detect dangerous heat stress conditions before they become unsafe, allowing organizations to protect workers, athletes, and personnel from heat-related illnesses. The device measures WBGT, Thermal Work Limit (TWL), heat index, temperature, humidity, wind speed, pressure, and many additional weather parameters. Unlike traditional WBGT meters, the Kestrel 5400 requires no distilled water, bulky black globe, or complicated setup, making field measurements faster and more convenient. Simply place or hold the unit in the measurement area for instant and average WBGT readings. It also includes programmable heat stress alarms with bright LED alerts, loud buzzer notifications, and preloaded athletic, military, and industrial heat safety guidelines for simplified compliance monitoring.