Adeunis RF COMFORT Serenity User manual

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 1
User Guide | COMFORT SERENITY
LwM2M | NB-IoT / LTE-Cat-M1
Published
Category
Document version V1.0.0
Language EN
Type
Product/Service
Etat Terminé
PRODUCT INFORMATION AND REGULATORY
INFORMATION
💡
This User Guide applies to the following product:
COMFORT SERENITY
Reference : ARF8394AB
APP Version: V1.2
INFORMATIONS DOCUMENT
Title COMFORT Serenity LwM2M - User Guide
Type User Guide
Version 1.0.0

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 2
PREAMBLE
DISCLAIMER
TECHNICAL SUPPORT
RECOMMENDATIONS
INTRODUCTION
https://s3-us-west-2.amazonaws.com/secure.notion-static.com/a5b889ac-1b0b-4619-9da2-b5
558a5a6caf/EU_declaration_of_conformity_(COMFORT_Serenity_ARF8394A).pdf
TABLE OF CONTENTS
TABLE OF CONTENTS
PRODUCT INFORMATION AND REGULATORY INFORMATION
TABLE OF CONTENTS
1. PRODUCT OVERVIEW
1.1. General description
1.2. Features
1.3. Package contents
1.4. Casing presentation
1.5. Dimensions
1.6. Push button
1.7. LEDs indicator
1.8. Power supply
1.8.1 Power source
1.8.2 Low Battery Management
1.8.3 Changing the double battery pack
1.8.4 Connecting the external power supply
2. TECHNICAL SPECIFICATIONS
2.1 General characteristics
2.2 Connectivity
2.2.1 Compatible networks and protocols
2.2.1 Data Consumption Estimation
2.3 RF specifications
2.4 Updates
2.5 Integrated sensor specifications
3. PRODUCT AUTONOMY
3.1. Battery Life Estimates in "OBSERVE" Mode
3.1.1 NB-IoT Network
3.1.2 LTE-Cat-M1 Network
DOCUMENTATION GUIDE

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 3
3.2. Battery Life Estimates in "PUSH" Mode
3.2.1 NB-IoT Network
3.2.2 LTE-Cat-M1 Network
3.3. PSM mode support
4. PRODUCT SETUP
4.1 NFC IoT Configurator App
4.2 Product operating modes
4.2.1 PARK Mode
4.2.2 PRODUCTION Mode
4.3 SIM Card Installation
4.4 Using the "Quick Start" Function
4.5 Other product startup modes
4.5.1 Product startup via push button
4.5.2 Startup of the product via NFC IoT Configurator app
4.6 Network attachment
4.6.1 Startup Network Attachment and Configuration
4.6.2 Monitoring Network Attachment Status
4.7 Network Quality Verification
4.7.1 Verification via NFC IoT Configurator app
4.7.2 Network Quality Verification via LwM2M Server
4.8 Specific Case of Starting without a Nano SIM
5. PRODUCT CONFIGURATION
5.1 Configuration of Server-Related Parameters
5.1.1 Using a Bootstrap Service to Register the Product
5.1.2 Registering the Product on an LwM2M Server without Using a Bootstrap Service
5.2 Configuration of Cellular Network Parameters
5.3 Configuration of Application Parameters
5.3.1 Configuration of application parameters in "OBSERVE" mode
5.3.2 Configuration of Application Parameters in « PUSH » Mode
5.4 Factory Reset
5.5 Data Timestamping
6. REMOTE UPDATE
7. INSTALLATION
7.1. Product Mounting
7.2. Product Installation Recommendations
8. DOCUMENT HISTORY
ANNEX 1: LwM2M PROTOCOL
Description of the LwM2M Protocol
LwM2M Features Supported by the COMFORT Serenity Product and Limitations
ANNEX 2: DATA MODEL OF THE COMFORT SERENITY PRODUCT
Standardized Objects for the COMFORT Serenity Product
Custom Objects for COMFORT Serenity Product
Object Format
Resource Format
ANNEX 3: SINGLE TRANSMISSION IN OBSERVE MODE
Block Diagram
Read a Value - READ Operation
ANNEX 4: PERIODIC TRANSMISSION IN OBSERVE MODE
Block Diagram
Configure Application Parameters

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 4
1. PRODUCT OVERVIEW
1.1. General description
The Adeunis COMFORT Serenity is a ready-to-use IoT sensor that meets the needs of users for
indoor monitoring of temperature, ambient humidity, carbon dioxide (CO2) concentration, and
relative changes in volatile organic compounds (VOCs) levels. This product is also equipped with
an NFC interface, which allows for quick and easy configuration with a smartphone.
Observe a Value - OBSERVE Operation
Example
ANNEX 5: PERIODIC TRANSMISSION IN PUSH MODE
Block Diagram
Example
ANNEX 6: THRESHOLD EXCEEDING TRANSMISSION IN PUSH MODE
Block Diagram
Example
ANNEX 7: PERIODIC TRANSMISSION AND THRESHOLD EXCEEDANCE IN PUSH MODE
Block diagram
Example
ANNEX 8: CONFIGURING A BLACKOUT PERIOD
Example
ANNEX 9: CO2 SENSOR USAGE
CO2 Sensor Maintenance
Automatic Calibration of the CO2 Sensor
Manual Calibration
Manual Calibration via Button Press
Manual Calibration via NFC IoT Configurator App
Manual Calibration via a LwM2M Server
Manual and Scheduled CO2 Sensor Calibration
CO2 Concentration Visual Indicator
Displaying the Last CO2 Concentration Level
Timing
Disabling the Visual Indicator
ICONE Index
ANNEX 10: USE OF THE VOC SENSOR
Detection Method
Interpretation of the VOC Index
Algorithm Configuration
Starting the VOC Sensor

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 5
Thermal comfort and indoor air quality data are transmitted via a cellular IoT network (NB-IoT or LTE-
Cat-M1) to a server. No additional equipment (gateway, router, etc.) is required for data transmission.
The COMFORT Serenity integrates the LwM2M (Lightweight Machine to Machine) standard, which
enables users to achieve integration and maintenance savings, reduce deployment costs, strengthen
sensor fleet security, and optimize product battery life.
The product operates autonomously and intermittently. It measures temperature, humidity, CO2, and
VOC data from the onboard sensors in "sleep" mode (PSM) and stores the data in its local memory. It
then wakes up at preconfigured intervals to transmit the stored data using the LwM2M protocol.
The product is powered by a replaceable battery pack and has been designed to work for up to10
years without maintenance (device configuration : 1 sampling every 60 mins, 1 transmission every 60
mins, LEDs enabled).
1.2. Features
4-in-1 Sensor: Temperature, humidity, CO2 concentration, relative changes in VOC levels
User Notification: Product equipped with a visual indicator (LED) on the casing
Global Cellular Compatibility: LTE-Cat-M1 and NB-IoT
Simplified Application Configuration: Remotely or locally via the NFC IoT Configurator
application

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 6
Data Transmission Modes: Periodic and/or event-based (threshold exceeded and/or threshold
fallen below)
Error/Fault Management: Configuration error, low battery
Data Timestamping: UTC timestamp, remote synchronization via the network
Remote Operational Maintenance: LwM2M defines all device management operations for a
sensor fleet (command sending, configuration read/write, firmware update)
Multi-Platform Integration: Product data format standardization (LwM2M) that IoT platforms can
interpret without the need for specific development
Bootstrap Support: Allows the product, when powered on for the first time (or after a factory
reset), to download its secret codes and configuration
Battery-Powered Autonomous Product: Powered by a replaceable internal dual-battery pack
designed to operate for multiple years without replacement (refer to the autonomy table). The
product can also be powered by an external power supply (not provided with the product).
Autonomy Optimization: Data logging and blackout (deactivation of data transmission for a
given period)
Made in France: Product designed and manufactured in France
📌
NOTE
To address different use cases, the COMFORT Serenity product also supports the MQTT
(Message Queuing Telemetry Transport) communication protocol.
To use the product with the MQTT protocol, refer to the dedicated User Guide.
1.3. Package contents
The product is delivered in a cardboard packaging containing the following components: Front face,
back face, electronic board, and ER18505H-2 dual battery pack

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 7
1.4. Casing presentation

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 8
Values in millimeters
1.6. Push button
Function Action
Product Startup Long button press (> 5 seconds) when the product is
in PARK mode (i.e., turned off)
Manual CO2 Sensor Calibration
Long button press (> 5 seconds) when the product is
in PRODUCTION mode (i.e., powered on) This
function can be disabled
Displaying the Visual Indicator for the Last
Measured CO2 Concentration Level
Short button press (< 5 seconds) when the product is
in PRODUCTION mode (i.e., powered on)
1.7. LEDs indicator
PRODUCT STATUS RED LED status ORANGE LED status GREEN LED status
Product in PARK mode
(i.e., turned off) OFF OFF OFF
Product startup OFF OFF Flashing 5 cycles 100 ms
ON / 100 ms OFF
Product startup failure ON for 15 sec OFF OFF
Network attachment
process in progress
Flashing 50 ms ON / 1
sec OFF OFF OFF Flashing 50 ms ON / 1 sec OFF (after RED LED)
1.5. Dimensions

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 9
PRODUCT STATUS RED LED status ORANGE LED status GREEN LED status
Successful network
attachment OFF OFF ON for 5 sec
Network attachment
failure O for 5 sec OFF OFF
SIM not detected at
product startup
Flashing 1 sec ON / 500
ms OFF for 30 sec OFF OFF
CO2 sensor calibration in
progress
Flashing 100 ms ON/ 5
sec OFF for 10 min
Flashing 100 ms ON/ 5
sec OFF for 10 min
Flashing 100 ms ON/ 5
sec OFF for 10 min
CO2 sensor calibration
completed
Flashing 5 cycles 100 ms
ON / 900 ms OFF
Flashing 5 cycles 100 ms
ON / 900 ms OFF
Flashing 5 cycles 100 ms
ON / 900 ms OFF
CO2 concentration visual
indicator (default
configuration)
Flashing 5 cycles 100 ms
ON / 900 ms OFF every
1 min
Flashing 5 cycles 100 ms
ON / 900 ms OFF every
1 min
Flashing 5 cycles 100 ms
ON / 900 ms OFF every
10 min
CO2 concentration visual
indicator (custom
configuration)
The number of cycles
and the interval between
2 cycles can be
customized using the
NFC IoT Configurator
application
The number of cycles
and the interval between
2 cycles can be
customized using the
NFC IoT Configurator
application
The number of cycles
and the interval between
2 cycles can be
customized using the
NFC IoT Configurator
application
Display of the visual
indicator corresponding
to the last measured CO2
concentration level
ON/OFF based on CO2
concentration
ON/OFF based on CO2
concentration
ON/OFF based on CO2
concentration
Temporary emission
suspension (blackout
period)
OFF OFF OFF
Low battery level Flashing 500 ms ON /
500 ms OFF every 1 min OFF OFF

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 10
📌
NOTE
Users have the option to adjust the power of the LEDs to optimize the product's battery life.
Four operating modes are available:
LEDs OFF
LEDs FULL: All three LEDs operate at 100% power.
LEDs ECO: LEDs operate at 50% power.
LEDs ECO+: LEDs operate at 30% power.
By default, the product is configured with the LEDs operating at 100% power. Changing the
LED operating mode is possible via NFC.
Changing the LED operating mode via NFC using the NFC IoT Configurator
application:
Go to the "LED" section in the "CONFIGURATION" menu of the sensor => Select the
desired LED operating mode => Apply the new configuration to the product via NFC.
1.8. Power supply
1.8.1 Power source
The COMFORT Serenity can be powered by a double-pack of FANSO Li-SOCl2 ER18505H-2
batteries or by an external power supply connected to a 2-pin terminal block (external power supply
not provided).
When both batteries and external power supply are used simultaneously, the external power
supply takes priority.
When the external power supply is used, the product operates with the same cycle as when
powered by the double-pack batteries (PSM mode).
The certified external power supply recommended by Adeunis for use with the product is GS05E-USB
- Wall Mount AC Adapters 5W 5V 1A W/Euro Plug WallMount USB Output from Mean Well.
If another external power supply model is selected to work with the product, it must strictly adhere to
the electrical specifications mentioned above and comply with the standards EN/IEC 62368-1 and EN
61000-3-2, EN 61000-4-2, EN 61000-4-4, EN 61000-4-5. The user must independently verify the
compatibility of this power supply with the product.

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 11
1.8.2 Low Battery Management
1.8.2.1 Detection mode
When the product detects that the battery is not capable of delivering the required energy for
transmission (due to extreme temperatures or end of battery life), it waits until it is capable of
transmitting. If it detects that the delay exceeds 1 minute, it notifies the user that the battery level is
low.
1.8.2.2 User information
The user can be informed of the product's battery status either locally through the NFC IoT
Configurator application or the LED display, or remotely.
The low battery indication automatically changes when the battery is replaced or when temperature
conditions are favorable for proper battery operation.
User Information through visual indication on the product's LEDs:
The red LED flashes every 60 seconds for 500 ms if the product's battery level is low.
User Information through the NFC IoT Configurator application:
📱
Go to the "DIAGNOSTIC" section of the sensor to
check the battery status as "OK" or "LOW

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 12
User Information through an LwM2M server:
The LwM2M server can request the product to report its battery status. To do this, the user needs to
trigger a READ operation on the "error code" resource via the server, which will return the current
value of this resource, or an OBSERVE operation can be initiated.
URI Object name Resource Name Access type Unit Description
/3/0/11 Device Error code R - 0= No error 1=
Low battery
1.8.3 Changing the double battery pack
When the low battery indicator is activated, it is possible to change the internal battery pack of the
enclosure.
It is important to use the same battery reference, namely ER18505-2.
PROCEDURE FOR CHANGING THE DOUBLE BATTERY PACK:
1. Insert a flathead screwdriver tilted towards the front of the enclosure into the opening at the top
and press. The enclosure will open in two and the front panel will detach.

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 13
CAUTION: Press gently to avoid damaging the enclosure
2. Remove the current battery and replace it with the new one, making sure to observe the polarity
indicated on the electronic board and the battery model.
3. To close the enclosure, insert the bottom of the front panel first and snap the top of the enclosure

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 14
After this battery replacement procedure, the product will automatically resume its "normal" operation
and clear the low battery indicators (status and LED).
1.8.4 Connecting the external power supply
1. Insert a flathead screwdriver tilted towards the front of the enclosure into the opening at the top
and press. The enclosure will open in two and the front panel will detach

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 15
CAUTION: Press gently to avoid damaging the enclosure
2. Connect the external power supply using the dedicated connector.
3. To close the enclosure, insert the bottom of the front panel first and snap the top of the enclosure

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 16
2. TECHNICAL SPECIFICATIONS
2.1 General characteristics
Mechanical characteristics
Dimensions 111 x 61 x 40 mm
Weight 146 g
Enclosure IP20
Mounting system Wall-mounted or freestanding
Electrical characteristics
Batter power
Battery type: Replaceable Double Pack-Pile FANSO
Li-SOCl2 - ER18505H-2 Nominal voltage: 3.6 V
Maximum current: 70 mA Capacity: 8200 mAh
External power supply (not included) Input range: 4.2 V to 6.0 V Maximum current:6700
mA
Operating conditions
Recommended operating range
+0°C to +50°C when powered by a double pack-pile
+0°C to +40°C when powered by an external power
supply
Operating temperature range 10°C to +70°C
2.2 Connectivity
2.2.1 Compatible networks and protocols
Connectivity
SIM Card Nano SIM 4FF Class C (1.8 V)
Cellular Standard 3GPP LTE Version 13
Cellular IoT Networks NB-IoT, LTE-Cat-M1
Data Transfer Protocol LwM2M, MQTT (refer to the dedicated User Guide to
use the product with MQTT protocol)
2.2.1 Data Consumption Estimation
This section presents data consumption estimates for the COMFORT Serenity based on the chosen
communication mode and the frequency of data scanning and transmission.

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 17
📌
NOTE 1
Product/server communications such as lifetime, keep alive, time synchronization, server
registration, and firmware updates are not considered in the data consumption estimates
below.
NOTE 2
Data consumption is significantly reduced when using data history in "PUSH" mode.
NOTE 3
Data consumption is equivalent regardless of the technology (NB-IoT or LTE-Cat-M1) used
by the product to connect to the cellular network.
Product/Server
Communication Mode
Data Sent per
Transmission
Monthly Data
Consumption for
Transmission Every 10
Minutes
Monthly Data Consumption
for Transmission Every
Hour
“OBSERVE” Mode 1 value of: - Temperature
- Humidity - CO2 - VOC 2040 ko
350 ko Default
configuration of the product
in "OBSERVE" mode (1
measurement/transmission
per hour)
“OBSERVE” Mode +
“reliable notifications”
option activated
1 value of: - Temperature
- Humidity - CO2 - VOC 3330 ko 560 ko
“PUSH” Mode without
data history
1 value of: - Temperature
- Humidity - CO2 - VOC 1830 ko 310 ko
“PUSH” Mode with data
history
6 values of: -
Temperature - Humidity -
CO2 - VOC
2830 ko
470 ko Default
configuration of the product
in "PUSH" mode (1
measurement/transmission
per hour)
2.3 RF specifications
RF specifications NB-IoT LTE-Cat-M1
Frequency Bands
B1, B2, B3, B4, B5, B8, B12, B13,
B17, B19, B20, B25, B26, B28,
B66
B1, B2, B3, B4, B5, B8, B12, B13,
B18, B19, B20, B25, B26, B28,
B66
Max Transmit Power +23 dBm +23 dBm
Tx Bandwidth 200 kHz 1.4 Mhz
Theoretical Data Rate 65 Kbps (UL) 30 kbps (DL) 375 kbps (UL) 300 kbps (DL)

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 18
RF specifications NB-IoT LTE-Cat-M1
Sensitivity > -108 dBm -113 dBm typ. > -103 dBm -107 dBm typ.
Power Consumption Reduction
Feature PSM PSM
2.4 Updates
Application configuration
Configuration via NFC using the Adeunis NFC IoT
Configurator mobile application on Android or
remotely
Firmware update Remote firmware update for both application firmware
and modem firmware (FOTA)
2.5 Integrated sensor specifications
Specifications Value
Temperature Technology CMOSens
Recommended Operating Range -0°C / +65°C
Accuracy ± 0.2°C typ. ± 1°C max.
Typical Resolution 0.01°C
Humidity Technology CMOSens
Recommended Operating Range 10% / 90% HR
Accuracy ± 2% HR typ. ± 4.5% HR max.
Typical Resolution 0.01 % HR
CO2 Technology NDIR (Non-Dispersive Infrared)
Operating Conditions 0°C / +50°C 0% / 85% HR
Measurement Range Up to 5,000 ppm; extended range
up to 10,000 ppm
Accuracy ± 30 ppm +3% of the reading
within the range up to 5,000 ppm
Resolution 1 ppm
VOC (optional) Technology MOX
Operating Conditions -10°C / +50°C 0% / 90% HR
VOC Index Scale 1 to 500 points
Measurement Range 0 to 1,000 ppm ethanol in clean air
Detection Limit
0.05 ppm ethanol or < 10% of the
set concentration value (whichever
is greater)
Sensor-to-Sensor Dispersion
< ± 15 index points or < ± 15% of
the measured value (whichever is
greater)

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 19
3. PRODUCT AUTONOMY
This chapter presents estimates of the autonomy of COMFORT Serenity based on the selected
network type, data transmission periodicity, LED activation, and network quality.
To ensure proper product functioning and autonomy, Adeunis strongly recommends:
Selecting an operator that supports PSM mode on its own network. Note that in the case of a
roaming connection, Adeunis recommends verifying that PSM mode is also guaranteed on other
operator networks. For more information on PSM mode, please refer to the dedicated section
Selecting the technology (NB-IoT or LTE-Cat-M1) that the product will use to connect to the
cellular network
Limiting the number of frequency bands used by the product to connect to the cellular network
(for example, in France, only band 20 is used by operators)
Favoring LwM2M servers with a connection ID
Favoring the use of "PUSH" mode for product-server communication
Limiting the number of OBSERVATIONS in the case of using "OBSERVE" mode
Optimizing the use of the product's LEDs (power and frequency of illumination)
3.1. Battery Life Estimates in "OBSERVE" Mode
3.1.1 NB-IoT Network
The two battery life tables below have been estimated based on a product configured to communicate
with an LwM2M server in "OBSERVE" mode and connected to an NB-IoT network with PSM (Power
Figure 1: Temperature measurement accuracy
Figure 2: Relative humidity tolerance at 25°C

User Guide | COMFORT SERENITY LwM2M | NB-IoT / LTE-Cat-M1ca 20
Saving Mode) support. Please note that the product's battery life may vary depending on the selected
operator.
Activated VOC Sensor, LEDs On
Sampling period Transmission period Good Network Autonomy
(years)
Poor Network Autonomy
(years)
Every 10 minutes Every 10 minutes 6.7 1
Every hour (default
product configuration)
Every hour (default
product configuration) 10.5 3.8
Every 2 hours Every 2 hours 11.2 5.6
Every 6 hours Every 6 hours 11.7 8.2
Every 12 hours Every 12 hours 11.8 9.3
Every 24 hours Every 24 hours 11.9 10
Disabled VOC sensor, LEDs On
Sampling period Transmission period Good Network Autonomy
(years)
Poor Network Autonomy
(years)
Every 10 minutes Every 10 minutes 10.2 1
Every hour (default
product configuration)
Every hour (default
product configuration) > 15 4.8
Every 2 hours Every 2 hours > 15 8.3
Every 6 hours Every 6 hours > 15 > 15
Every 12 hours Every 12 hours > 15 > 15
Every 24 hours Every 24 hours > 15 > 15
3.1.2 LTE-Cat-M1 Network
The two autonomy tables below were estimated based on a product configured to communicate with
an LwM2M server in "OBSERVE" mode and connected to an LTE-Cat-M1 network with PSM mode
support.
Please note that the product's autonomy may vary depending on the selected operator.
Activated VOC Sensor, LEDs On
Sampling period Transmission period Good Network Autonomy
(years)
Poor Network Autonomy
(years)
Every 10 minutes Every 10 minutes 5.5 2.7
Every hour (default
product configuration)
Every hour (default
product configuration) 10 7.1
Every 2 hours Every 2 hours 10.9 8.6