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Honeywell STT700 SmartLine Temperature Transmitters

Honeywell STT700 SmartLine Temperature transmitters offer an accurate, repeatable and stable transmission puck for mounting directly within a temperature sensor assembly electrical head.  Fluidic are able to offer the Honeywell STT700 temperature transmitter pre-assembled to an enclosure, temperature sensor (RTD or thermocouple) along with the associated thermowell pocket.


The STT700 is single or a dual input temperature transmitter that supports millivolt, thermocouple and RTD sensors. It is available with either HART or DE protocol output. The STT700 is a direct replacement for the STT250 and thus is suitable for the majority of process applications including those for control and safety while delivering excellent performance at a low installed cost.​

Features of the Honeywell STT700 SmartLine Temperature transmitters….

  • Single input supporting up to 4-wire RTD sensor connection
  • Dual input option supporting up to two (2) 3-wire RTD sensor connections
  • Digital accuracy up to 0.15°C for RTD
  • Callendar-Van Dusen sensor constants input
  • Lightning protector option
  • HART7 communications
  • DE communications
  • Field housing, head mount, panel mount and DIN rail mounting options
  • Transmitter and sensor diagnostics
  • FM / CSA / ATEX / IEC Ex approvals
  • Full compliance with SIL 2 / 3 requirement
  • Up to a 4-year warranty


Fluidic are able to offer a full temperature sensor assembly transmitter (puck, display and housing) with pre-wired RTD/Thermocouple etc and thermowell where required. We are able to offer the full assembly ATEX qualified, with appropriate Exd nipples etc and the full documentation package in support of this.


Other models within the SmartLine® family include options for gauge pressure, absolute pressure, differential pressure, remote chemical seal assembly and ‘pseudo flange’ hydrostatic level measurement (again via differential pressure).  Fluidic hold an exclusive channel partner agreement with Honeywell Field Products division.  Our instrumentation engineers are product trained and able to help with instrument selection within the full Honeywell Field Product instrumentation portfolio including the entire Smartline® smart pressure transmitter family.  Fluidic order directly with the Honeywell factory via an exclusive channel partner web portal and hold stock for some common lines.  Please contact either office for more information (Glasgow 0141 641 5920 or Warrington 01925 572401).



  • Download Honeywell STT700 Datasheet
  • Download Honeywell STT700 User Manual
  • Download Honeywell STT700 Quick Start Guide
  • Download Lightning Protection Device Specifications
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