Kestrel 5400 Heat Stress WBGT Meter Orange 0854ORA SlashPro Black It has a maximum output

It has a maximum output of 3000 lumens and a beam distance of over 450 metres using a Luminus SST70 LED

The back of the pouch has MOLLE webbing and built-in snap straps

Diamond pattern quilting

ensuring continuous readiness during intense situations

eVent® waterproof

Kestrel 5400 Heat Stress WBGT Meter Orange 0854ORA SlashPro Black It has a maximum outputAs 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 there are some pretty outstanding updates. Flag warnings via loud buzzer & LED beacon! Bluetooth LINK works with PC Mac via Dongle Bluetooth LINK to Smartphones Mobiel Android IOS Takes 1 AA