WamBlee W400 Manuel D'instruction page 9

Automatic activation
If your device accidentally falls in the water it will, on coming into contact
with the water, start working within approximately 5-10 seconds. The
'water contact' sensors are located on the rear of your device (3) and must
be externally accessible; keeping your W400/W400EX in a waterproof
pocket or a zone inaccessible to water will prevent its activation.
Activation of your W400/W400EX MSLD will be indicated by:

A red light inside the flash lens (4)

A beep emitted twice a second

A white light flashing once every 3 seconds.
During this stage a radio signal will be emitted to aid localisation of the
person in need of rescue.
EN
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