University of St Andrews SMRU Instrumentation
SMRU Instrumentation
Sea Mammal Research Unit

Low Profile SRDL (Argos)

Our Low Profile SRDL provides detailed individual dive and haulout records but dispenses with the speed sensor and large D-cell of our standard SRDL and is particularly suited to smaller polar species or shorter deployments. SMRU Low Profile SRDL isomorphic representation


  • Data relayed and locations computed using the global Argos satellite system
  • Relays an unbiased sample of detailed individual dive records
  • Sensors include depth, temperature and wet/dry

TDR capability

  • Retains a continuous record of depth and temperature readings (4 sec sample rate), which can be retrieved by bluetooth link if the tag is recovered.


  • Longevity: potentially up to two years.
    The battery of AA cells used in the Low Profile SRDL can provide up to 60,000 Argos uplinks
  • Size: 102 x 72 x 4 mm
  • Weight: ~305 g
  • Volume: ~180 cm3

For further technical details, please see our standard SRDL specification (PDF)

For details of pricing and how to order, please see our Contact & Sales section.
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