SignalFire A2 Long Range Node Series

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The SignalFire Remote Sensing System™ is a flexible adaptive radio networking system that seamlessly integrates analog and digital sensors. With a range of up to 3 miles, the system is self installing and self configuring. All the installer has to do is set the check-in frequency using a simple rotary switch, record the radio address, and connect the sensor. This system compares very favorably, from a cost perspective, with installed conduit at distances of 100 feet or more.

Price range starting at $740.00.



Powers sensor and radio for years with an internal battery.

  • Optional solar power package
  • Costs less than 60ft of installed conduit
  • Rugged design for demanding outdoor environments
  • Up to 3-mile range
  • Sensor independent
  • 1/2” NPT conduit interface
  • Automatically configures as a star or mesh network
  • Simple to install and Maintain

Models and Capabilities


Monitor two analog sensors and one digital input.


  • 4-20 mA current loop sensor
  • 1-5 V sensor
  • Digital input/counter


Monitor one HART® loop and one digital input.


  • HART (1-4 sensors)
  • Digital input/counter


Monitor one or more Modbus sensors.

Thermocouple Input

Monitor one K-Type Thermocouple.

SDI-12 Interface

Monitors and powers one or more SDI-12 sensors.


  • Provides 12VDC to a single SDI-12 bus
  • Reads/reports up to 10 measurements
  • Supports SDI-12 sensor addresses 0 through 9
  • Supports reading the default measurement and all additional measurements from connected SDI-12 devices
  • All measurements are available as 32bit float values in Modbus registers at the Gateway


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A2 Long Range Node Series Datasheet

A2 Long Range Node Series – Analog Manual

A2 Long Range Node Series – HART Manual

A2 Long Range Node Series – Modbus Manual

A2 Long Range Cathodic Protection Node Manual

A2 Long Range SDI-12-V2 Interface System Manual


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