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The SafeSea S100 Search and Rescue Transponder (SART) is a dedicated radar transponder which complies with IMO SOLAS regulations.

Ocean Signal / S100 SART

The SeaSafe S100 SART is designed to assist in the rescue and recovery of liferafts and survival craft. When switched on, the SART remains in a standby mode until automatically activated by an X Band Radar sweep from any vessel in the vicinity. The SafeSea S100 transmits a series of pulses which are displayed on the ships Radar as a line of dots, providing a bearing to the survival craft.

The activation controls are identical to those on theSafeSea E100 EPIRB, making use by unskilled operators much easier

Technicial Specifications

  • SARTs are required on all IMO SOLAS vessels on international voyages:-

  • One on 300-500GRT

  • Two if over 500GRT

  • One SART per every four liferafts on ro-ro passenger vessels

  • Nationally mandated vessels, including fishing vessels, passenger craft, commercial workboats, etc

  • Most Super and Mega yachts are required to carry a SART, especially if covered by the MCA code of practice, which is recognised by many countries.

  • Voluntary fit vessels will also benefit by carrying a SART

  • Superior battery life – even at -20°C

  • User replaceable battery

  • Non Hazardous battery

  • Five year replacement interval

  • Compact size for easy liferaft packing

  • Supplied complete with telescopic pole and storage bracket


Why should I carry a SART?

A SART is designed to aid the rescue authorities locate you in emergency. Although it is not a primary alerting device, like an EPIRB, it will guide the rescue craft to you by displaying a position and bearing line on the rescue craft’s radar.


Frequency range: 9.2-9.5GHz

Radiated output power: >26dBm eirp

Operating Temperature Range: -20°C to +55°C

Storage Temperature Range: -30°C to +70°C

Waterproof: >10metres at +20°C


IMO regulations: A.694(17): MSC.247(83)

International Standards Radio: IEC61097-1

International Standards EMC: IEC60945

European approval: Marine Equipment Directive A.1/4.18

USA Standards: FCC CFR47 part 80.1101

Chemistry: Lithium/Iron Disulfide (Li/FeS2)

Operational Life: >96hours standby plus >12hours operational

Battery Replacement Interval: 5years

Height: 227mm

Body Diameter (max): 65mm (82mm)

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