EPIRB Annual Testing & Shore-Based Maintenance in Thailand
Satellite EPIRBs must be tested every year (SOLAS IV/15.9) and receive shore-based maintenance at intervals not exceeding five years. SEATECH Electric tests EPIRBs as part of the GMDSS radio survey and is approved by ClassNK for shore-based maintenance of Ocean Signal satellite EPIRBs, for which we are also the authorised sales and service agent in Thailand.
What we cover
- Inspection and maintenance to the manufacturer's procedures by factory-certified engineers
- Annual EPIRB test: 406 MHz signal, coding (MMSI / hex ID), 121.5 MHz homing signal and GNSS where fitted
- Check of registration details, battery expiry and hydrostatic release unit expiry
- Shore-based maintenance (SBM) of Ocean Signal satellite EPIRBs
- Battery replacement with genuine manufacturer batteries
- Supply of new EPIRB, AIS-EPIRB, SART, AIS-SART and PLB from ACR and Ocean Signal
- Test and maintenance report for the class surveyor
Why ship managers choose SEATECH
- Engineers trained and certified directly by the manufacturer, working to the manufacturer's inspection and maintenance procedures
- GMDSS radio surveys approved by ABS, BV, DNV, LR, ClassNK and the Marine Department of Thailand
- Authorised sales and service for Sperry Marine, Raymarine, SAILOR, NAVTOR, ACR and Ocean Signal
- Serving merchant vessels and the Royal Thai Navy since 2012, with a spare parts depot in Thailand
Questions about this service
What is the difference between the annual test and shore-based maintenance?
The annual test checks on board that the EPIRB transmits correctly and is coded and registered properly. Shore-based maintenance is a deeper workshop service, including battery replacement, required at intervals not exceeding five years.
Which EPIRB makes can you maintain?
Our ClassNK approval for shore-based maintenance covers Ocean Signal satellite EPIRBs. For other makes, send us the make and model and we will confirm what we can do or supply a replacement beacon.
Can you supply a new EPIRB?
Yes. We are the authorised sales and service agent for ACR Electronics and Ocean Signal in Thailand and supply EPIRBs, AIS-EPIRBs, SARTs and PLBs with genuine batteries and release units.
How do I book?
Email service@seatech-electric.com with the vessel name, port, ETA, and the EPIRB make, model and battery expiry date.





