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Vanguard Toxic and Combustible WirelessHART® Gas Detector

Born to be Wireless!


The Vanguard Toxic and Combustible WirelessHART® Gas Detector was born to be wireless. With a  5-year battery and 1-button calibration — the Vanguard is a gas detector built for the wireless world!


The new Vanguard WirelessHART gas detector’s flexible monitoring of toxic or combustible gas can save lives. Its ultra-long battery life saves maintenance trips. Its easy pushbutton calibration; mount-anywhere mobility; and seamless, plug-and-play interoperability save time and trouble. And of course, eliminating long wiring runs saves thousands in installation costs.


Vanguard:  It’s the way you always wanted wireless to work!

Product Overview



Product Drawings


Product Overview:

The Vanguard WirelessHART® gas detector is ideal for the monitoring of toxic and combustible gases without the need for costly and fixed wiring. With a five year battery life and one button calibration, the Vanguard  detector is easy to operate and maintain.


Each Vanguard detector has a WirelessHART® transceiver, an antenna, a display, a long life power module, a gas sensor, and a signal processor for the gas sensor. Vanguard uses a sensor architecture trademarked “Flexsense,” which allows the sensor to identify its target gas and self-configure to a Vanguard transmitter upon connection.


It is currently available with either a non-dispersive infrared (NDIR) methane sensor (0-100% LEL) or an electrochemical hydrogen sulfide sensor (0-100ppm).

Wireless Gas Detector
Wireless HARTGas Detector

Wireless gas detectors like the Vanguard can augment existing gas detection coverage with

minimal financial and labor outlay. The Vanguard can be plugged-and-played anywhere in an

existing WirelessHART® mesh and perform its role as a first line of defense for H2S monitoring.

Product Highlights:

Wireless capability

Field interchangeable toxic and combustible gas sensors

Interoperable with existing WirelessHART® networks

   and  asset management systems (AMS)

Easy calibration and operation

5+ year battery life*

Heavy duty design with Class 1, Div 1 & 2 hazardous

   location approvals

*Affected by polling frequency


  • Operating Temperature: -40°F to 149°F (-40°C to 65°C)*
  • Supported Gases: Methane (CH₄) ; Hydrogen Sulfide (H₂S)
  • Resolution : 1%LEL or 1ppm
  • Accuracy: ±2% LEL (CH₄ sensor) ; ±10 PPM  (H₂S sensor)
  • Enclosure: Type 4X, IP66
  • Weight : 9.6 lbs (including sensor and battery)
  • *Varies with sensor type. Refer to technicial brochure for details.

WirelessHART® Gas Detector Drawing


14026 - Product Drawing








Tel:  (617) 926-1000

Fax: (617) 926-4354

Do you have a  customer service or technical question?  Please email us and we will get back to you.

180 Dexter Avenue, Watertown, MA  02472-4200