Kestrel 5400 Heat Stress + Vane Mount (Orange): 0854VORA
Kestrel 5400 Heat Stress + Vane Mount (Tan): 0854VTAN
Kestrel 5400 Heat Stress Pro with Compass and LiNK + Vane Mount (Orange): 0854LVCORA
Kestrel 5400 Heat Stress Pro with Compass and LiNK + Vane Mount (TAN): 0854LVCTAN
Roberts WO. Medical management and administration manual for long distance road racing.
In: Brown CH, Gudjonsson B, eds. IAAF Medical Manual for Athletics and Road Racing Competitions:
A Practical Guide. Monaco: International Amateur Athletic Federation Publications; 1998: 39-75.
What's new with the Kestrel 5400 over the Kestrel 4400/4600 it replaced:
As for weather reading features,they will be the same. You won't get a 'better' temperature reading, wind reading, etc, or even more readings than available on the 4400/4600... still the same quality USA made meter backed by a 5 year warranty. That being said thereare some pretty outstanding updates.