FAQ LIBERO G Real-time data logger

Find the most frequently asked questions regarding our real-time data logger family LIBERO G below.

For information on configuration, device operation and display icons please visit our LIBERO Gx real-time data logger get-started section.

Last Updated: April 14, 2021

What communication network is LIBERO G using?

LIBERO G is using Mobile IoT (LTE-M/NB-IoT) for communication. Mobile IoT is for transmitting low amounts of data volumes (machine-to-machine) on long ranges with low power consumption. The protocols is standardized by 3GPP and currently rolled out globally. LIBERO G as well as ECOLOG-PRO talk both "languages" (protocols) LTE-M and NB-IoT and are able to switch (e.g. in case of no connection)

What ist LTE-M?

LTE-M is a low power wide area technology which supports IoT through lower device complexity and provides extended coverage, while allowing the reuse of the LTE installed base (=4G). This technology can extend battery life, potentially by up to 5-10 years. LTE-M facilitates an energy-efficient handshake between antennas and is therefore optimized for mobile applications.

What ist NB-IoT?

NB-IoT is a standards-based low power wide area technology developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage. Ideal for utility metering. It uses widely available infrastructure, consume very little energy, keep device and deployment costs low, can reach deep within buildings and can support large numbers of units. NB-IoT is typically used for stationary applications.

Can I trigger a communication via elproCLOUD?

No, this is not possible. The communication protocol implemented for LIBERO G incorporates any communication triggered by the device. This future proof implementation differentiates the ELPRO device from competitive devices and allows the runtime of more than one year.

100% calibrated sensor – where can I download the certificate?

For all internal temperature sensors, ELPRO is able to provide a 3-point manufacturer calibration certificate covering the full measurement range.

All standard certificates can be downloaded via compliance.elpro.com

The battery life is stated as up to 14 months?

Technically, the runtime for LIBERO G depends on different parameters such as connection quality, network settings, re-connects due to connection loss, temperature range as well as measurement and communication interval. Based on the customer requirements, ELPRO has simulated different use cases:

Application

International Shipment

International / intra company shipment monitoring (multi use)

Asset tracking (always on)

Device

Single Use (LIBERO GS)

LIBERO GL, GH, GE

LIBERO GF

LIBERO GL, GH, GE

LIBERO GF

Shelflife

12 months

12 months

12 months

12 months

12 months

Expires after 1)

110 days

14 months

14 months

14 months

14 months

Runtime 2)

110 days

8 x 20 days

16 x 20 days

6 months

12 months

Temperature range

Above 0 °C

Above 0 °C

Down to -35 °C

Above 0 °C

Down to -35 °C

Measurement interval

15 minutes

15 minutes

15 minutes

15 minutes

15 minutes

Communication interval 3)

120 minutes

120 minutes

120 minutes

120 minutes

120 minutes

1) maximum runtime from initial device start
2) effective transit time where device is logging/monitoring (excluding start / stop state)
3) event-driven immediate communication (e.g. temperature excursion)

 

The power management of LIBERO G has certain mechanisms (e.g. reduced communication interval if not in transit ) to ensure the runtime.

How accurate is the position?

LIBERO G uses a cell-based location concept. Therefore, the accuracy of the position depends mainly on the expansion of the mobile network.

In most cases, an accuracy of +/- 50m can be ensured. In few situations, the accuracy may be higher and can be at maximum +/- 1000m.

The current global expansion of the LTE-M and NB-IoT network will further increase the location accuracy as well as future release of the network standard by 3GPP focus on enhancing the position accuracy (by means of triangulation).

How often is the position recorded?

The position is recorded whenever the LIBERO G connects to a new antenna. This is at least when LIBERO G transmits the data to the cloud. Depending on the network settings additional location points will be recorded when in transit.

What is the difference between LIBERO GL and LIBERO GF?

Both, LIBERO GL and LIBERO GF are multi-use devices. LIBERO GL (as all other devices of the LIBERO G family) contains two “AA” Alkaline batteries and are IATA compliant. This means, the batteries are exempt from DGR (“Dangerous Goods Regulations”) for airfreight and do not require declaration.

LIBERO GF contains two “AA” Lithium metal batteries (LiFe). Therefore, the LIBERO GF has to be declared according to UN 3091 when shipped via airfreight.

LIBERO GF is mainly used in frozen shipments to ensure communication also below 0 °C.

Is coverage available for my shipment?

Check the country list to check connectivity quality. In any case, we recommend to perform a test shipment on the planned route.

I have no coverage in my warehouse – what can I do?

Change the position of the device to increase the connection quality, e.g. by moving closer to a window.

Is it possible to set up an in-house network?

LIBERO G operates in the public cellular network (LTE-M and NB-IoT). This network allows high penetration and connection also within buildings. As LIBERO G operates in a licensed spectrum, ELPRO cannot provide indoor antennas e.g. by beacons.

As site owner and in order to answer questions about the site conditions, it is most efficient if the customer approaches the network provider itself.

Please check if the network is available in the respective country:
https://www.gsma.com/iot/deployment-map/#deployments

If network is available in your country, you can contact the national network provider in order:

  • to check whether there are available antennas in the vicinity which can be upgraded to to LTE-M / NB-IoT
  • to model on the basis of the given conditions (e.g. second basement floor, masonry) whether reception is realistic when additional antennas are connected
  • to work out a proposal for an in-house supply system

Do additional fees apply for global roaming?

Global roaming is included in more than 50 countries worldwide (please see country list). For the roaming option in additional countries, a surcharge will apply.

What can I do if my LIBERO G does not react?

Press both buttons for 10 seconds to perform a (soft) reset. The device will not lose data and return to the previous state.

Is LIBERO G conform to the GDPR Guidelines?

Yes, LIBERO G is conform to GDPR (General Data Protection Regulation). LIBERO G is used by the supplier solely to ensure product quality. In the database, there is no connection between the actual position of the device and a person (e.g. .driver) documented.

What happens to the data after transmission?

LIBERO G has a memory to buffer at least 16’000 measurement values (equals 5.3 months at a measurement interval of 15 minutes). If the memory is full, the first value will be overwritten.

Can I delete a LIBERO G?

Yes. It is possible to delete a LIBERO G. Please be aware that your data is lost, if you delete the sensor in your ELPRO Cloud account. Deleting is protected by asking you to enter your password.

Is there a list of airlines that have approved LIBERO Gx real-time devices?

Yes. You can find out, which airlines already approved our LIBERO Gx real-time loggers for transport. Please go to LIBERO G Airline approval list and fill the form to get access.