Oil & Gas

SignalFire Telemetry products connect you with crucial product and hardware data at any of your oil and gas operation sites—whether it’s a pump, pipeline, or storage tank.

Water & Wastewater

SignalFire Telemetry devices install anywhere water asset monitoring is needed, whether it’s for collection purposes, treatment, or delivery.

General Industrial

SignalFire Telemetry devices can monitor key assets and can do it affordably, without any renovation or high-priced engineering costs. They install easily with no required cable or additional power. The data is available on your phone or computer and the cloud service can even output to your corporate system to integrate with the rest of your data and keep your operation running.

Agriculture

SignalFire Telemetry devices can monitor and manage water supplies and additives throughout the property, helping you avoid catastrophic shortages and keep your irrigation plan on track.

Tanks & Terminals

Avoid costly product loss in bulk storage tanks, terminals, and transportation movements. Whether calling for tank levels, gauge pressure, or even movement pumps or pipelines, SignalFire products can fill any monitoring gap throughout a facility.

Environmental

Environmental fines for businesses are frustrating and can bring business to a standstill until they’re worked out. No business wants to hurt the environment, and in competitive markets stopping production affects the bottom line and staff. But there are effective and affordable solutions with SignalFire Telemetry devices.

Refining & Petrochemical

Expand visibility and control of your refinery or petrochemical processing facility without expensive renovations or redesigns. And do it with your current gauges and hardware. SignalFire telemetry devices are designed to work in harsh chemical environments and meet the strictest safety and security standards

Utilities

No matter the size of your service map, monitoring remote assets ensures efficiency and keeps your operation in compliance. That’s how SignalFire devices can really help, offering the most affordable and effective monitoring solution that will monitor liquid, gas, electricity, and other assets.

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900MHz RF

A2 Node Series

The A2 Long Range Node is a Class I, Division 2–certified, rugged, low-power wireless telemetry device that connects analog and digital sensors in harsh environments. With up to a 3-mile (5 km) range (902–928 MHz), it supports 4–20 mA, voltage, digital inputs, HART®, and RS-485/Modbus while delivering years of battery life or optional solar/DC power. Its NEMA 4X aluminum enclosure and simple installation enable star or mesh networking with Modbus data at the gateway — all without costly wiring.

Technical Specifications

Ambient Temperature Range:

-40ºF to 176ºF (-40ºC to 80ºC)

Humidity:

0% – 100% condensing

Power:

3XD Lithium battery pack. Field replaceable. Solar and DC input power options are available.

Sensor Power:

12.5 or 18V Jumper selectable for 4-20mA current loop, 1-5V, or HART sensors.

  •  Analog and HART sensor power is provided from the system, no need for external sensor power.
  •  Modbus requires external sensor power

Approval Rating:

A2 Sensor Interface For use in: Class I, Division 2, Groups A, B, C, D. Temperature Class: T4

Battery Life:

1–10 years depending on the type of sensor and reporting frequency.

Data Interface:

Wireless – available as Modbus registers at Gateway.

Data Update Rates:

User configurable from 5 sec to 2 hours.

Supported Sensor Interfaces:

  • Analog (4-20mA/1-5V)
  • Digital input
  • HART
  • RS485 Modbus RTU
  • K-Type Thermocouple
  • SDI-12

Radio Power:

500 mW

Antenna Type:

External Weather Resistant, Omnidirectional. Optional N-Connector for remote-mounted antenna.

Receive Sensitivity:

-105 dB

Frequency:

902-928 MHz License Free ISM Band Compliant with FCC Part 15.

Range:

Up to 3 Miles (Line of Sight)

Wireless Node Per Gateway:

Up to 240 nodes on a single SignalFire Gateway

Enclosure:

Aluminum, NEMA 4X Rated

Internal Diagnostics:

Battery voltage, signal strength, error conditions.

Features

01
Powers sensor and radio up to 10 years with a high capacity battery pack
02
Flexible power options – Battery, Solar or External DC
03
AES128 Encryption for secured wireless communications
04
Class 1 Div 2 & Rugged NEMA 4X aluminum design
05
Up to 3-mile (5km) range – using various input power options
06
Sensor independent – works with 4-20mA, 1-5Vdc, Modbus, HART, Thermocouple, Pulse, Dry Contact
07
1/2โ€ NPT conduit interface & remote mounted antenna option
08
Automatically configures as a star or mesh network
09
Simple to install and maintain

The A2 Long Range Node is a rugged, ultra–low-power wireless telemetry unit designed to integrate seamlessly with both analog and digital sensors in harsh outdoor environments.

With up to a 3-mile line-of-sight range on the 902–928 MHz ISM band, the A2 supports multiple sensor types (4–20 mA, 1–5 V, digital counters/inputs, HART®, RS-485/Modbus, thermocouples) while delivering years of battery life from its internal lithium pack (or optional solar/DC power). Housed in a NEMA 4X aluminum enclosure and simple to install, the A2 automatically configures as a star or mesh network and provides Modbus-accessible data at the gateway — all at a fraction of the cost of long conduit runs.

 

Models

  • Analog (4-20mA/1-5V) + Digital
  • HART + Digital
  • RS485 Modbus RTU
  • K-Type Thermocouple
  • SDI-12
TitleCategoriesFile TypeLink
A2 Long Range DatasheetDatasheetpdf
A2 Long Range SDI-12-V2 Interface System ManualManualpdf
A2 Long Range Series – Analog ManualManualpdf
A2 Long Range Series – HART ManualManualpdf
A2 Long Range Series – Modbus ManualManualpdf
A2 Node 3D Model3D Models, Drawingzip
A2 Node DrawingDrawingpdf

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