Exposure OLAS bracelet signaller MOB for smartphone

OLAS Exposure Lights

OLAS is the bracelet of Exposure Lights that allows you to be sure of the presence of your crew and to report the presence of a man at sea.


OLAS allows you to gain confidence on the presence of your crew on board.
On your smartphone, with its app, you can be sure of the presence of those who wore the bracelet and you are alerted in the event of a man falling into the sea.

The bracelet, with a Bluetooth module inside, is specially designed to be worn by the crew, pets or objects. The strap is comfortably rubbery and is fastened like a wristwatch, but you can take it off and insert the OLAS on a belt of the lifejacket, or you can place it on any tube or on a safety device, such as the raft or EPIRB.

You can attach up to 8 bracelets to one smartphone and each bracelet can be interrogated by multiple smartphones. The Bluetooth range is about 10 meters and is therefore suitable for boats up to 50 feet.

The app is available free of charge for Android and iOS systems. In the event of a man at sea emits a siren sound, spreads a light signal, stores the time and coordinates where the accident occurred, then the app shows you a screen with clear indications for the approach to the unfortunate (MOB).


  • 034-0500

    Exposure OLAS - Bracelet x MOB System Smartphone

    GTIN13: 5060369152333; Weight: 0.1 kg; Dimensions: 13 x 8 x 5 cm
  • 034-0540

    Exposure OLAS Pack - Case with 4 OLAS units

    GTIN13: 5060369152821; Weight: 0.3 kg; Dimensions: 15.4 x 10 x 6 cm
Prices include VAT


  • MOB system for smartphones.
  • Bracelet equipped with Bluetooth.
  • Connects up to 8 bracelets to a smartphone or tablet.
  • A bracelet can be connected to multiple smartphones or tablets.
  • Free app for iOS and Android devices.
  • The In case of MOB app emits the sound of a siren and a light signal.
  • Stores the time and GPS coordinates where the incident occurred.
  • The app shows the direction and distance to the man at sea.
  • The rubber bracelet is easily worn on the wrist, to any object or animal.
  • Summary page of the data to be transmitted in the event of an emergency call to the coastguard.
  • Page that remembers the maneuvers to perform in case of man overboard.
  • Suitable for boats up to 50 feet.
  • Bracelet with 5 months battery life and low charge alarm.


Rubber strap.