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Submersible Contactless Data Logger Series TW104

Australian Patents 2010100767, 2009903443

Contactless submarine standalone temperature datalogger

  Sealed stainless steel construction fully sealed no openings. 
  Watertight 300m
  12 bit resolution
  Built in platinum temperature sensor:   electronically compensated PT100 with 0.006 C resolution by oversampling (0.05 C native)
  High quality contactless rechargeable battery 
  Powerful and easy to use
  Internal date & time clock
  Customisable by running your own internal software
  Software for Windows
  Contactless download and battery recharge: just place it over the base unit
  Base unit connects via USB

Submarine temperature logger

Designed for submarine applications or to operate in wet areas prone to flooding. Fully sealed unit without opening nor contacts, download and battery recharging is performed by contactless patented technology.
New technology at old price. 



  • The datalogger series TW104 have been designed for monitoring temperature and other parameters in a submarine environment.
  • Scientific research applications.
  • Applications requiring no plugs nor cable nor enclosure open during download. 
  • This datalogger can be also employed outdoor and indoor and can implements special custom features.
  • High resolution applications as it reads and stores temperature readings in 12 bit format.
  • Really waterproof applications no need to plug connectors or to open the case to download data


  • Operating temperature: -40C + 70C
  • Watertight to 300m.
  • Resolution: (0.024% FS, 0.05C, 0.00625C by oversampling)
  • Digital signal filter.
  • 12 bit resolution
  • Sampling interval: programmable from 1/14 of second to days by second increments.
  • Internal date and time clock in DOS/UNIX format.
  • Power supply: High quality 2.4V NIMH for several month operation.
  • Contactless base unit (sold separately) for PC downloading via USB.
  • Programmable (if special monitoring is required) 1020 lines of customisable procedure including some programming plus 12 internal registers.
  • Memory: 86000  measures
  • Sizes mm: 115 x 25.4 mm
  • Memory unerase.
  • Please click here to enquire about submersible multichannel loggers for PH and other parameters