Kestrel 5400 WBGT Heat Stress Tracker, Orange, Standard Non-LiNK — Waterless WBGT, IP67 Rugged

The Kestrel 5400 WBGT Heat Stress Tracker is a handheld, waterless WBGT meter that measures Wet Bulb Globe Temperature, Heat Index and 15 environmental metrics with on‑device logging and audible/visual alarms.

Compact and rugged, the Kestrel 5400 delivers defensible heat stress readings without wick maintenance, making it practical for athletic trainers, safety officers, and field teams who need quick, repeatable assessments of heat risk. Built to withstand harsh conditions, it combines multiple environmental sensors, preset WBGT guidance sets, and long-term data storage in a pocketable instrument designed and manufactured in the USA.

How does the 5400 measure WBGT without water or wicks?

The Kestrel 5400 uses calibrated onboard sensors and a validated algorithm to compute a natural wet‑bulb temperature instead of relying on a wetted wick or external water. That means you get continuous, maintenance‑free WBGT results in the field.

• Waterless WBGT calculates natural wet‑bulb from temperature, humidity, and globe readings.
• No wick replacement, no distilled water, no set‑up before use.
• Consistent readings reduce user error and upkeep time.

Which environmental values and alerts does it provide?

This meter reports 15 different measurements including WBGT, Heat Index, globe temperature, wet bulb, wind speed, temperature, humidity and barometric pressure. A loud buzzer, bright LED beacon and configurable flag warnings notify users when conditions exceed selected thresholds.

• Measurements: WBGT, TWL, globe, heat index, wet bulb and more.
• Alerts: audible buzzer, visible LED beacon, and flag warning levels.
• Preset guidance sets include ACGIH, UIL, athletic regional zones and military tables.

Can I save readings and use them for reports or audits?

Yes. The 5400 stores over 10,000 time‑stamped records internally for later review, audit or transfer using a handheld data‑download routine. The unit is self‑contained and does not require continual connection to a mobile app to retain data.

• Onboard logging holds 10,000+ readings with timestamps.
• Data is retained on the device for defensive documentation.
• No live app connection required for logging reliability.

What durability and warranty protections come with the instrument?

The Kestrel 5400 is built for field use with IP67 waterproofing and a five‑year warranty, reflecting rugged construction suitable for sports, industrial and military environments. It’s manufactured in the United States by Nielsen‑Kellerman with multi‑decade experience in precision outdoor instruments.

• IP67 protection against dust and immersion in water.
• Five‑year warranty for parts and workmanship.
• Made in USA by a trusted manufacturer with 40+ years experience.

Who this is for: The Kestrel 5400 WBGT Heat Stress Tracker is ideal for athletic trainers, coaches, occupational safety personnel, industrial hygiene teams and military staff who need accurate, low‑maintenance heat stress assessment in the field. If you require portable, repeatable environmental readings with onboard storage, audible/visual alarms and validated WBGT guidance without ongoing wick maintenance, this meter fits that use case.