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Rosemount™ 708 Wireless Acoustic Transmitter
Featuring ultrasonic acoustic event detection that mounts externally, the Rosemount™ 708 Wireless Acoustic Transmitter offers a fast, cost effective installation.
This device allows visibility into steam traps and pressure relieve valves (PRVs) by accurately communicating acoustic level and temperature data as well as device data, event status and leak detection via the WirelessHART® network. The Steam Trap Monitor software (optional) provides real-time information about steam trap conditions, energy usage and emissions.
Rosemount™ 708 Wireless Acoustic Transmitter


Acoustic Level
0-255 Counts
Operating Temperature
-40 to 260 °C (-40 to 500 °F)
Update Rate
1 second to 60 minutes, user selectable
Power Supply
Replaceable, non-rechargeable, intrinsically safe Lithium-Thionyl Chloride Power Module pack with PBT/PC enclosure
Housing Material
Engineered Polymer (PBT/PC)
Antenna Type
Internal antenna: Maximum of 10mW (10 dBm) EIRP
12/18 months standard, 3 or 5 year optional


  • Detects and transmits acoustic level and temperature data to increase visibility and monitor steam traps and PRV’s
  • Directly mounts to process piping without cutting or changing pipe configurations for flexible, simple installation
  • Steam Trap Monitoring software (optional) provides critical, real-time information on steam trap conditions
  • Rugged and robust transmitter design ensures consistent performance in harsh environments
  • WirelessHART® technology is secure, cost-effective and delivers >99% data reliability
  • WirelessHART® network easily integrates into host systems, data historians or energy management software
  • Easy, intuitive and non-intrusive installation enables a quick method to automate without the cost of wiring
  • SmartPower™ solutions provide up to 10-year maintenance-free operation and replacement without transmitter removal