Table of Content
Table of Content

2

ACTIVATION AND INSTALLATION

3

1. PRODUCT INTRODUCTION

51.1. Features6

1.2. Specifications

7

1.3. Click Action and LED Indicators

9

1.4. Monitor and Configure the Product10● Sensor Data

10

● Event Data11

2. DEVICE OPERATION

12

2.1. Glossary

12

2.2. Message Type14

2.2.1. Downlink Messages

14

2.2.2. Uplink Messages

16

2.3. Operation Modes

17

2.3.1. Event Mode and Messages

17

2.3.2. Timer Mode and Messages

17

2.3.3. Event + Timer Mode and Messages

18

2.3.4. Event + Heartbeat Mode and Messages

18

2.3.5. Occupancy Mode and Messages

19

2.3.6. Occupancy + Heartbeat Mode and Messages

19

2.4. External I/O

20

2.4.1. Reed Switch Accessory

20

2.4.2. Temperature Probe Accessory

21

2.4.3. 2 Wire Accessory

21

3. TROUBLESHOOTING

22

Appendix

23

Copyright Information

23

Service and Support

23

Limitation of Liability

24

Declaration and Safety Statement

25

Federal Communications Commission Statement

25

FCC Radio Frequency (RF) Exposure Caution Statement25

Declaration of Conformity

26

CE Marking

26

Safety Notice27

UnaBell LTE-M User Manual

2

ACTIVATION AND INSTALLATION

After the activation, you can press the button and should see the data in the UnaConnect
platform
Note:
1. If you use the Plastic Nano SIM, the device will use it for network connection instead ofeSIM.
2. It might take up to 5 minutes if the device is connecting to a new network in a new
region.
3. Be sure to put the casing back.

UnaBell LTE-M User Manual3Here are our recommendations for installing the device:● If the surface is flat and smooth, you can use strong double-sided tape on the bottom of
the device● If the surface could be bolted or screwed, you can hang the device on the surface● You can tie a string or rope around the hole on the bottom casing of the device and hang
it on other items (e.g. a doorknob)● Please always install the device with the top facing outwards and keep it away frommetal or obstacles

UnaBell LTE-M User Manual41. PRODUCT INTRODUCTION

UnaBell LTE-M is a battery-powered smart button that can be configured tosend messages and trigger actions for a variety of applications, which can lastat least 2,000 clicks. The device is also dust and water resistant.
Plug-and-play accessories such as a reed switch or temperature probe can bepurchased as add-ons to the smart button via the 3.5mm audio jackconnectors to detect the opening/closing of doors or measure the ambient
temperature of a space. Seamlessly integrated with UnaConnect, a secure andreliable IoT Device Management Data Platform, UnaBell LTE-M and its
accessories are easy to install and configure, allowing you collect data for avariety of use cases immediately.

UnaBell LTE-M User Manual

5

1.1.

Features● Long Battery Life: Minimum 2,000 clicks with replaceable alkaline AA batteries● Dust & Waterproof: IP54 casing protection (Protected from limited dust
ingress.Protected from water spray from any direction.)● Local Network: eSIM or Nano SIM can be used based on your local network provider● Firmware Over-the-Air (FOTA) Update: via LTE-M network to update device firmware● UnaConnect Compatible: UnaBell LTE-M sends data through the LTE network and isnatively received by the UnaConnect IoT Middleware for data parsing, configuration,enrichment and connection to end-points● 4 Click Types: Single, double, long, extra-long clicks can be used to configure the trigger
messages from the device● Battery Monitoring: Heartbeat messages are used to monitor device health

UnaBell LTE-M User Manual

6

1.2.

Specifications

Connectivity

Battery

LTE-M Networks

Supported Bands:
2, 3, 4, 5, 8, 12, 13, 17,
20, 28Type

Replaceable 1.5V Alkaline AA
Batteries

SIM Cards

eSIM or Plastic Nano
SIM

Battery Life

Minimum 2,000 clicks

ModuleSequans Monarch 1
GM01Q

Mechanical
Dimension

117 x 40 x 26.5mm

Weight78g (without batteries)

Dust & Water Proof

IP54 casing protection

External Connector

3.5 mm audio jackCasing Color

White top casing & black

OperatingTemperature-10 to 60 degree Celsius

UnaBell LTE-M User Manual7

Accessory: Temperature Probe

Accessory: Reed Switch

Dimension

6 mm x 50 mm

Dimension

23 mm x 14.6 mm

Wire Length2m

Wire Length

1mOperatingTemperature-55 to 125 degree Celsius

OperatingTemperature-40 to 125 degree Celsius

Temperature
Range &
Accuracy± 0.5 degree Celsius between-10 to 85 degree Celsius

Accessory: 2-Wire
Wire Length

16 cm

Optional Accessories with 3.5mm Audio Jack:●●●

Reed Switch to detect opening/closing of doors
Temperature Probe to measure ambient temperature of a space
2-Wire to connect with other sensors (e.g. pressure sensor)

Smart Modes:●●●

Event Mode to immediately send a message when the button is clicked. In addition,
this can be used with the reed switch accessory to send messages when a door is
opened or closed
Timer Mode to count the number of clicks on the button at pre-configured intervals.
In addition, this can be used with the temperature probe accessory or a sensor withthe 2-wire that sends metrics, example a pressure sensor, to send temperature data
at predefined intervals
Occupancy Mode to send a message at the start and end of a state. For example,
this can be used with the 2-wire accessory to connect to pressure sensors to detect
the state of a seat (occupied/vacant)

UnaBell LTE-M User Manual

8

1.3.

Click Action and LED Indicators

While making short, double or long clicks, the LED green light blinks one time immediately
to indicate the button click is recognized.
Please refer to the visuals below for click action and LED feedback information:● Click Action

Click Types Description●

Single1 click

Double2 clicks within 2 secs

Long

1 click and press for longer than 2 secs

Extra Long

1 click and press for longer than 6 secs

LED Indicators

OrangeBlinking
Green
1 Short ON
Green
Slow Blinking
Green
Fast Blinking
Green
1 Long ON
Red
1 Long ON
Red
Fast Blinking● Power ON/Activation● Network Scanning/Searching

SIM Card● Firmware Upgrade (FOTA)/eSIM
OTA
Button click detected
Network Connecting
Data Transmitting
●
●
●
●
●

Data Transmission Completed
Communication Success
Data Transmission ERROR
Communication Failed
Network ERROR

Low Battery

UnaBell LTE-M User Manual

9

1.4.

Monitor and Configure the Product

The UnaConnect platform can help you monitor all the data received and configure thebehavior of your devices
1.
2.
3.
4.

Login https://console.unaconnect.io/ with the credential provided by UnaBiz
Click on the device group containing your devices
Click on ‘Devices’ on the left navigation bar
Click on the device for data information and configuration● Sensor Data
The Sensor Data tab is the main tab that displays all the messages containing raw data thathave been sent from the device
In the Graph section:● Select the data types that you want to visualize in the Metrics dropdown menu
● Enter the Tick Total value to change the scale of the horizontal axis
● If you want to replace null value by other values, click on the Null Data checkbox andenter the value to replace nullIn the Device data section:● The table displays the timestamp of each message, the data contained in each message
that have been processed or translated by UnaConnect, and the raw data in the message
sent from the device● The data and raw messages are based on the different device types, modes and events
that triggered each of the messages to be sent from the device● Export for a CSV file of all the sensor data messages sent from the device

UnaBell LTE-M User Manual10

● Event Data
The Event Data tab displays all the messages containing descriptions of the events that are
device-related such as downlink messages, downlink acknowledgement messages, Sigfox
network error messages (example, a break in sequence message) along with the timestampof these events

UnaBell LTE-M User Manual

11

2.

DEVICE OPERATION

2.1.

Glossary

Uplink (UL)

An uplink message is sent from the device to the cloud platform

Downlink (DL)A downlink message is sent from the cloud platform to the device

Timer Mode

The device counts the number of clicks detected and sends thecount in an uplink message at pre-configured intervals

Event Mode

The device immediately sends an uplink message when a click ispressedHeartbeat Mode

The heartbeat mode can be selected along with Event or Occupancy
modes. A heartbeat message is sent periodically by the device toinform the user on battery life, changes in configuration etc

Occupancy Mode

The device sends an uplink message as it identifies the state haschanged between Open or Closed StatesOpen State

The state when the external connector is in the open state, forexample: the reed switch has the magnet away from it = open

Closed State

The state when the external connector is in the closed state, forexample: the reed switch has the magnet next to it = closed

Debounce Timer

A countdown timer used in occupancy mode which would be reset
every time the external connector detects a state change todistinguish if a state is in open or closed states

Occupancy Duration

The period of time from which the debounce timer starts tocountdown so if no state change is detected past the occupancy
duration (and the timer countdown reaches 00:00) then the device
identifies the space as open

External I/OExternal I/O (Input/Output) are the sensors or accessories that canbe plugged in to communicate with the device

Edge Mode

In edge mode, the device can detect the status change ofaccessories

Pulse ModeIn pulse mode, the two-wire accessory can be used as an extension

Rising/Falling Edge

It shows the status of accessories:
Reed Switch: the magnet is away from it/next to it
Two Wire: disconnected/connected

UnaBell LTE-M User Manual

12Full-band Scan

This command is to search the network which has better
connectivity

eSIM OTAThis command is to update the contract or information of eSIM

FOTAThis command is to update the firmware via LTE-M network

UnaBell LTE-M User Manual

13

2.2.
2.2.1.

Message Type
Downlink Messages

A downlink message is sent from the UnaConnect platform to UnaBell LTE-M; the device
initiates the downlink process by sending an uplink message with current device information
to the cloud platform for downlink request, when the cloud platform receives the downlink
request, it will send a downlink message to update the latest configuration set in
UnaConnect to the device.
All the configurations for UnaBell LTE-M can be defined on the UnaConnect platform. The
Downlink Interval (DI) defines how often the device performs a downlink process with thecloud platform to update the configurations. An immediate downlink message can also be
manually triggered by the user by applying an extra long click to the button (1 click andpress for longer than 6 secs).
Parameter

Operation mode

Default Configuration

Event

Uplink Frequency 24 messages per day

Downlink Interval 24 hours

UnaBell LTE-M User Manual

Description
There are 6 modes available:● Timer● Event● Event + Timer● Event + Heartbeat● Occupancy● Occupancy + Heartbeat
This defines the frequency of messaging in
24 hours and is only utilized in Timer andHeartbeat modes.
The ranges are:
● 1 timer message in one day (periodic
24 hours)● 2 timer messages in one day (periodic
12 hours)● 3 timer messages in one day (periodic
8 hours)● 4 timer messages in one day (periodic
6 hours)…
● 144 messages in one day (periodic 10
minutes)This defines the time interval for the device
to initiate the downlink process.
Minimum = 6 hours
Maximum = 336 hours (2 weeks)14

Parameter

Default Configuration

Occupancy
Duration0 second

Command

No command

Config external
I/O detection
mode

Disable, no external I/O

Detection DelayTime

0 second

Event mask

All event triggers enabled

UnaBell LTE-M User Manual

Description
In Occupancy Modes, this sets the period oftime from which the debounce timer starts
to countdown so if no state change is
detected past the occupancy duration (andthe timer countdown reaches 00:00) thenthe device identifies the state that haschanged. For example, if this is set at 10
secs, then the device will only change state
after it detects the same state for longer
than 10 secs.
There are 4 commands available:● No command● Full-band scan
● eSIM OTA● FOTA
There are 4 external I/O detection modes
available:● Disable, no external I/O● Edge● Pulse● Temperature Sensor
Delay on the detection of the triggers inedge detection mode.
Unit: seconds
Minimum = 0 (disable detection delay)
Maximum = 7200 seconds
This defines the detection types(rising/falling edge) and click types that can
trigger the device to send messages. The
options are:
● Rising edge or occupied● Falling edge or vacant● Short click● Long click● Double short click● Extra-long click15

2.2.2.

Uplink Messages

UnaBell LTE-M supports 6 operation modes, each with its corresponding uplink message
type, that could be configured by the user on the UnaConnect platform:● Event● Timer● Event + Timer● Event + Heartbeat● Occupancy● Occupancy + Heartbeat
Click Types
SingleDoubleLong
Extra Long

Description
1 click
2 clicks within 2 secs
1 click and press for longer than 2 secs
1 click and press for longer than 6 secs

UnaBell LTE-M User Manual

16

2.3.
2.3.1.

Operation Modes
Event Mode and Messages

In event mode, the device sends an uplink message immediately each time a click type isapplied on the button.
For example, this mode can be used as a maintenance call to repair equipment on a
production line, an emergency button to call for assistance in an elderly home or a service
call for cleaning in a bathroom.
The uplink message for Event mode contains the following data:● Message type: Event● Sequence number: counter from 0 to 4095
● Enabled detection type: Rising edge, Falling edge, Single, Double, Long, Extra Long
Note: If the Temperature Sensor is connected as the external connector, then the current
temperature will be sent in event messages when the button is pressed
2.3.2.

Timer Mode and Messages

In timer mode, the device logs a count of the number of clicks for each click type over a
period of time and sends an uplink message at an uplink frequency configured on the
UnaConnect platform.
For example, this mode can be used to count the number of maintenance or service calls
sent from the buttons installed at various points of a facility during a period of time to help
with resource allocations and operations.
The uplink message for Timer mode contains the following data:● Message type: Timer● Sequence number: counter from 0 to 4095
● Uplink frequency: from 1 to 144 messages per 24 hours● Summary of number of clicks detected: Edge, Single, Double, Long, Extra Long
Note: If the Temperature Sensor is connected as the external connector, then thetemperature values will be sent in timer messages

UnaBell LTE-M User Manual172.3.3.

Event + Timer Mode and Messages

The event + timer mode combines the two modes so that it sends an uplink message
immediately each time a click type is applied on the button, and logs a count of the numberof clicks for each click type over a period of time and sends an uplink message at an uplinkfrequency configured on the UnaConnect platform.
The uplink message for Event + Timer mode contains the following data:● Message type: Event + Timer● Sequence number: counter from 0 to 4095
● Uplink frequency: from 1 to 144 messages per 24 hours● Summary of number of clicks detected: Edge, Single, Double, Long, Extra Long
2.3.4.

Event + Heartbeat Mode and Messages

In event + heartbeat mode, the device sends an uplink message immediately each time anyof the click type is applied on the button, and sends a heartbeat message at an interval
configured on the UnaConnect platform.
The heartbeat message contains battery voltage data to help monitor the batteries andmanage the device lifecycle in your operations.
The uplink message for Event + Heartbeat mode contains the following data:● Message type: Event + Heartbeat● Sequence number: counter from 0 to 4095
● Battery voltage: remaining voltage measured in mV● Enabled detection type: Rising edge, Falling edge, Single, Double, Long, Extra Long

UnaBell LTE-M User Manual182.3.5.

Occupancy Mode and Messages

The occupancy mode sends an uplink message at the start and end of a state. In
Occupancy Modes, a debounce timer counts down from a preconfigured occupancy
duration and if no state change is detected past the occupancy duration, then the device
identifies the state that has changed.
For example, if the occupancy duration is set at 10 secs, then the device will only change
state after it detects the same state for longer than 10 secs. This mode can be used withthe 2 wire accessory to connect to pressure sensors to detect the state of a seat(occupied/vacant).
The uplink message for Occupancy mode contains the following data:● Message type: Occupancy● Sequence number: counter from 0 to 4095
● Sensor status: status of external I/O connector configured as Pulse or Edge mode
2.3.6.

Occupancy + Heartbeat Mode and Messages

The Occupancy + Heartbeat mode sends an uplink message at the start and end of a state,and sends a heartbeat message at an interval configured on the UnaConnect platform.
The uplink message for Occupancy + Heartbeat mode contains the following data:● Message type: Occupancy + Heartbeat● Sequence number: counter from 0 to 4095
● Battery voltage: remaining voltage measured in mV● Sensor status: status of external I/O connector configured as Pulse or Edge mode

UnaBell LTE-M User Manual

19

2.4.

External I/O

To fulfill an even wider range of applications and use cases, UnaBell LTE-M may also act as abattery-powered gateway when used with its corresponding plug-and-play accessories in
addition to the embedded button on the device. The configuration in UC should be updated
to the accessory that is plugged into the device.
The accessories can be plugged to UnaBell LTE-M via 3.5mm audio jack connectors and theirmain use cases are:● Reed Switch Accessory: detect opening/closing of doors● Temperature Probe Accessory: measure ambient temperature of the surrounding space● 2 Wire Accessory: connect with other sensors (e.g. pressure sensor)*You can put the rubber plug inside the device casing.

2.4.1.

Reed Switch Accessory

When the reed switch accessory is connected to UnaBell LTE-M, the same operation modeand configurations for the embedded button is applied to the reed switch external I/O
connector, and the recommended detection mode for the external I/O is edge detection.
An example scenario is that the reed switch sensor is connected to UnaBell LTE-M to detect
the opening and closing of a door. The edge detection in event mode detects the instancethat the magnets are closed or separated and sends a message immediately when the door
is opened and closed.

UnaBell LTE-M User Manual202.4.2.

Temperature Probe Accessory

When the temperature probe accessory is connected to UnaBell LTE-M, the embedded
button continues to operate in its mode and configurations. The temperature probe only
operates in event, timer or event + timer modes. For event modes, it sends an uplinkmessage containing the current temperature data when the button is pressed. For timer
modes, it sends a log of temperature data at an uplink frequency configured on the
UnaConnect platform.
An example scenario is that the temperature probe is connected to UnaBell LTE-M tomonitor the temperature of a meeting room. The timer mode sends temperature data at
predefined intervals for facility monitoring and if a user wishes to call the facility control tochange the air-condition setting, they can use the embedded button in event mode to senda request message.
2.4.3.

2 Wire Accessory

When the 2 wire accessory is connected to UnaBell LTE-M, the same operation mode andconfigurations for the embedded button is applied to the 2 wire external I/O connector, andthe recommended detection mode for the external I/O is edge detection.
An example scenario is that a 2 wire pressure sensor customized by the user is connected to
the UnaBell LTE-M to detect the state of a seat. The edge detection in occupancy mode
detects when the pressure is applied and sends an 'occupied' message, then ignores othertriggers from the sensor for a pre-defined period of time (occupancy duration), then checks
if the pressure is still being applied. If it has been removed, the sensor sends a 'vacant'message to notify the user of the state change for the seat.

UnaBell LTE-M User Manual

21

3.

TROUBLESHOOTING

1. The device cannot initialize or connect to the local LTE-M network
If the device continues to blink orange LED light for a long time, this indicates that it ishaving trouble initializing, scanning or connecting to the local LTE-M network. This may be
due to the network environment or limitations of the local LTE-M network provider.
Please try the steps below:
A: Manually trigger a downlink message immediately by applying an extra long click to thebutton (1 click and press for longer than 6 secs)
B: Take the device to another location with a better network environment, then remove andinsert the two 1.5V Alkaline AA batteries to trigger the initialization process again

2. The device cannot send data after the Nano SIM card is inserted/removed
If the Nano SIM card is inserted, the Nano SIM card overrides the embedded eSIM. If the
Nano SIM card is removed, the device returns to utilizing the embedded eSIM.
If the device cannot connect to the local LTE-M network and send data after the Nano SIM
card is inserted or removed, you may open the bottom casing and press the Reset button in
the small hole next to the battery with a pin to manually trigger the device for initializationand connection to the local LTE-M network again.

3. The device is not behaving according to its configuration
All the configurations for UnaBell LTE-M can be defined on the UnaConnect platform. The
Downlink Interval (DI) defines how often the device performs a downlink process with thecloud platform to update the configurations.
If the device is not behaving according to its configuration on the UnaConnect platform, it
could be that it has not reached its scheduled Downlink Interval to update the configuration
to the device. Please try to manually trigger a downlink message immediately by applying an
extra long click to the button (1 click and press for longer than 6 secs).

UnaBell LTE-M User Manual22Appendix
Copyright Information
No part of this manual, including the products and software described in it, may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any
language in any form or by any means, except documentation kept by the purchaser for
backup purposes, without the express written permission of UNABIZ CO., LTD.. (“UNABIZ”).
UNABIZ PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR
CONDITIONS OF MERC HANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENTSHALL UNABIZ, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR
LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESSAND THE LIKE), EVEN IF UNABIZ HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGESARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
Products and corporate names appearing in this manual may or may not be registeredtrademarks or copyrights of their respective companies, and are used only for identification
or explanation and to the owners’ benefit, without intent to infringe.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY UNABIZ. UNABIZ ASSUMES NORESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN
THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.

Copyright © UnaBiz, all rights reserved.

Service and Support
Please contact the Salesperson or mail us: unaconnect-support@unabiz.com

UnaBell LTE-M User Manual23Limitation of Liability
In no event shall UnaBiz be liable to customer, any customer of customer or any third party
for any loss of use, revenue or profit or loss of data or diminution in value, or for any
consequential, indirect, incidental, special, exemplary or punitive damages whether arisingout of breach of contract, tort (including negligence) or otherwise, regardless of whether
such damages were foreseeable and whether or not UnaBiz has been advised of thepossibility of such damages, and notwithstanding the failure of any agreed or other remedyof its essential purpose.
In no event shall UnaBiz’s aggregate liability arising out of or related to this agreement,
whether arising out of or related to breach of contract, tort (including negligence) orotherwise, exceed the total of the amounts paid to UnaBiz for the goods sold hereunder inthe one (1) year prior to the claim.

UnaBell LTE-M User Manual24Declaration and Safety Statement
Federal Communications Commission Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:(1) This device may not cause harmful interference, and(2) this device must accept any interference received, including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in aparticular installation.
If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try tocorrect the interference by one or more of the following measures:- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which thereceiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for compliancecould void the user’s authority to operate the equipment.
FCC Radio Frequency (RF) Exposure Caution Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolledenvironment. This equipment should be installed and operated with a minimum distance of
20 cm between the radiator and a human body.

UnaBell LTE-M User Manual25Declaration of Conformity(Radio Equipment directive: 2014/53/EU)
This device complies with the essential requirements of the Radio Equipment directive:
2014/53/EU. The following test methods have been applied in order to prove presumptionof conformity with the essential requirements of the Radio Equipment directive:
2014/53/EU:
EN 301 908-13 V13.1.1
EN 301 908-1 V15.1.1
EN IEC 62311:2020
EN 50665: 2017
EN 50385: 2017
EN 301 489-1 V2.2.3
EN 301 489-52 V1.2.1
EN IEC 62368-1:2020
Cat M1

Power (dBm)

Band 3
Band 8Band 20
Band 28

23
23
23
23

SW Version: V2116
CE Marking

RF Exposure Statement
The minimum distance between the user and/or any bystander and the radiating structure of
the transmitter is 20cm.

UnaBell LTE-M User Manual26

Safety Notices
●
●
●
●
●
●
●
●

Keep the device away from water, fire, humidity, or hot environments.
Do not operate the device next to flammable gases or fumes.
Do not place the device next to a heat source.
Do not spill food or liquid on your product, and never push any objects into the openingsof your device.
Do not attempt to disassemble, repair, or modify the device.
Do not use this product where wireless devices are not allowed.
Children should be supervised to ensure they do not play with the device and its parts.
Please read and follow the instructions about replacing the batteries. There is a risk of
explosion if the battery is replaced by an incorrect type.

UnaBell LTE-M User Manual27