Emerson

Rosemount 708 Wireless Acoustic Transmitter

Source: emerson.com (accessed 2026-10-16). Confirm specifications with the manufacturer before ordering.

Specifications

Vendor: Emerson
Brand / line: Rosemount
Category: Leak, valve and steam
Class: Adjacent
Technique: Ultrasonic acoustic event detection (ultrasonic sensor peak sensitivity 35-45 kHz) plus thermocouple
Detects: steam trap failurevalve passingtemperatureleaks
Mounting: Clamp-on to piping/PRV discharge line with mounting bands, non-intrusive, no process shutdown or hot work
Temperature range: Process surface up to 260 °C (500 °F) per quick start guide; high-temperature mounting hardware above that
Communications: WirelessHART
Power: Replaceable SmartPower lithium-thionyl chloride module, up to 10 years depending on update rate
Hazardous area: FM, CSA, ATEX (Ex ia IIC T4 Ga) and IECEx intrinsically safe
Suitable assets: steam systemsvalvespiping
Notes: Optional Steam Trap Monitor software; connects via Emerson Wireless 1410S Gateway (HART-IP, OPC UA, Modbus, EtherNet/IP). Valve-agnostic for PRVs. Temp/approval detail from Emerson 708 quick start guide (88536).

Acoustic Systems Inc.

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leaks

4-20 mA/HART

Armstrong International

Steam-trap-specific acoustic plus temperature sensing via patented waveguide

steam trap failuretemperature

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Armstrong International

Steam-trap-specific acoustic plus temperature sensing via patented waveguide

steam trap failuretemperature

ISA100.11a

Atmos International

Statistical volume balance (SPRT) using pressure and flow data

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Negative pressure wave detection with fast-response pressure meters

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valve passinggas release