iSLDMB – Iridium Self Locating Datum Marker Buoy

A search and rescue drifter that’s easily deployable from air or sea, designed to communicate critical location and temperature data in real-time.

Product Description

Self Locating Datum Marker Buoy

The MetOcean Iridium® SLDMB (iSLDMB) is an innovative, rugged, and compact A-size Self Locating Datum Marker Buoy. The iSLDMB was designed and tested to meet the stringent performance requirements of coastguards for Search and Rescue (SAR) operations in the open ocean. The design of the drifting marker buoy is based on the proven CODE/Davis style oceanographic surface drifters.

Optimised for Search and Rescue

The inexpensive and expendable drifter is equipped with several important pieces of technology, including: an Iridium® bi-directional satellite transmitter, sea surface temperature sensor, and a GPS receiver. Due to the urgency of SAR situations, the drifting buoy is able to communicate critical data in real-time to the end-user. Robustly designed, the iSLDMB is air certified and can be deployed from water vessels, helicopters, fixed wing and rotary wing aircrafts. Depending on the required data transmission rate, the drifter can experience an operating life between 15-120 days.

Additional information


Iridium, Search & Rescue


metOcean telematics


Location, Temperature


iSLDMB Data Sheet