Cellular Products Frequently Asked Questions

Cellular Products Frequently Asked Questions

The Ranger utilizes LTE M1 cellular technology to send/receive messages directly to the internet. No Gateway is required. Other SignalFire products utilize 900MHz radios for local sensor data aggregation.
This means that the Ranger communicates directly with the cellular network to the internet. No additional field equipment is necessary.
Simply log into the SignalFire Cloud and enter the devices IMEI number (serial number) to link a device with your account. All configuration changes can then be made directly from the website.
The Ranger uses TLS certificates which is the standard for secure internet communications. TLS is the standard used by online financial institutions to provide secure connections.
The Ranger includes a built in GPS receiver which will report the device location to the cloud, providing a map of all connected assets.
The Ranger has one analog input (4-20mA/1-5V) which provides power to the attached sensor. There are two discrete inputs that report input state (open/closed), total counts and input frequency.
The Ranger has a single latching relay which allows on/off control of attached devices.
The Ranger utilizes LTE-M1 technology which has been rolled out in the US by Verizon, AT&T and Sprint. The Ranger will support all carriers, but is certified for Verizon at launch.
No. The cellular data is included in the price.
Alerts and delivered via text message email and are fully configurable using the SignalFire Cloud.
The Ranger has an on board temperature sensor that reports the electronics temperature. It is approximately equal to the ambient temperature of the device.
The relay can be turned on/off using the SignalFire cloud website. Future updates will enable local and cloud based automated control options.
The SignalFire Cloud uses HTML5 to provide access to your data from any web browser including on mobile devices.
A SIM card provides access to the cellular networks. A SIM card comes pre-installed when packaged with the SignalFire cloud service.
The microSD card slot is provided for optional local data logging capabilities. This will store local time-stamped readings for audit purposes. This feature will be enabled with a future firmware update.
Battery life depends on several factors including the reporting interval and the attached sensor(s). As an example, a Ranger attached to a 4-20mA pressure transmitter, with a reporting interval of once every 5-minutes would have a battery life of more than 3 years.
Yes, the Ranger can be powered using a SignalFire solar power system.
The Ranger communicates using MQTT following the Sparkplug B Topic and Payload definitions, which is becoming the de-facto standard for IIoT devices.

This allows the Ranger to connect to any MQTT broker and deliver the sensor data. The Sparkplug B definition is used by SCADA systems such as Ignition by Inductive automation and others.



To configure the Ranger to transfer data directly to your systems follow these steps:

  1. Insert a SIM card that supports LTE-M1 communications from an approved carrier
  2. Using the microUSB port configure the Ranger to connect to your MQTT broker (IP Address, Port, login credentials). Optionally a TLS certificate may be loaded
  3. The ranger will connect to the configured MQTT broker and begin publishing its data
The SCADA system that is subscribed to the MQTT broker will begin to receive the data and will automatically populate the data tags.