The SAMS-3-NB-LTE-M Fire and CO Alarm Audio Detector is
designed to monitor your UL-listed fire alarms and CO alarms. It
recognizes UL-compliant T3 fire alarm and T4 CO alarm sound
patterns and sends instant alerts to server, including
normal-frequency and low-frequency suitable for sleeping areas.
Now equipped with OTA (Over-The-Air) capability, the device
enables remote firmware updates for enhanced functionality and
simplified long-term maintenance. It provides a cost-efficient
solution to add existing fire alarm and CO alarm monitoring to
your home without the need to replace the hardwired devices.
The audio detector captures alarm sounds emitted by fire/CO
alarms and transmits a wireless alarm signal to the server upon
detection, ensuring full coverage and reliable alarm reporting via
the NB-IoT/LTE-M network. The wireless, compact design of the
SAMS-3-NB-LTE-M allows for flexible placement and simple
installation, whether on a wall or ceiling, ideally within 15 cm of a
UL-listed fire/CO alarms. With its streamlined and unobtrusive
appearance, the SAMS-3-NB-LTE-M integrates seamlessly into any
home environment, helping users stay informed and protected
against fire or CO hazards.
SAMS-3-NB-LTE-M
Fire and CO Alarm Audio Detector
Protecting What
Matters Most
Easy Installation
Used with UL fire/
CO alarms
T3 Smoke/T4 CO Sound
Pattern
NB-IoT/LTE-M Connectivity
OTA Upgrade Support
OTA
UL
CO
CO
Secure Your Way of Life
Fire Alarm Audio Detection Workflow
T3 Fire Alarm Sound Pattern
T4 CO Alarm Sound Pattern
UL Fire Alarm
T3 Fire Alarm
Sound
Fire Alarm via
NB-IoT/LTE-M
SAMS-3-NB-LTE-M
Cloud Server
UL
UL CO Alarm
T4 CO Alarm
Sound
CO Alarm via
NB-IoT/LTE-M
SAMS-3-NB-LTE-M
Cloud Server
CO
UL
• OTA (Over-The-Air) firmware update capability
• Monitors existing UL fire and CO alarms
• Recognizes T3 fire alarm and T4 CO alarm sound patterns
including normal-frequency and 520Hz low-frequency
suitable for sleeping areas
• Excellent stability with high sensitivity
• Mounted on wall or ceiling within a 15 cm range from a
UL fire alarm or CO alarm
Features
• Small, elegant design
• Wireless and lightweight for easy installation
• Easy ceiling mounting simplifies installation
• Red LED alarm indicator
• Low battery notification
• Regular supervision signals to check system integrity
• Suitable for residential and commercial safety
applications
SAMS-3-NB-LTE-M
Fire and CO Alarm Audio Detector
Secure Your Way of Life
Communication Protocol MQTT
Radio Access Technology LTE Cat M1 / Cat NB2 / Cat NB1
Frequency Bands*
Cat M1:
LTE-FDD: B1/B2/B3/B4/B5/B8/B12/B13/B14/B18/B19/B20/B25/B26/B27/B28/B66/B85
Cat NB2 / NB1:
LTE-FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B28/B66/B71/B85
Power Source 3V CR123 lithium battery x 1
Battery Life 3.7 years**
Operating Temperature 0°C to 45°C (32°F to 113°F)
Operating Humidity Up to 85% non-condensing
Dimensions 75mm x 75mm x 23.8mm
Specifications
SAMS-3-NB-LTE-M
Fire and CO Alarm Audio Detector
*Note: Frequency band will vary with area and demand.
**Note: Actual battery life may vary due to device settings, usage, and environmental conditions.
Copyright © 2025 Climax Technology Co., Ltd. All Rights Reserved．Dec. 15, 2025
Secure Your Way of Life
Federal Communication Commission Interference Statement
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 a
particular 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 to correct the interference by one 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 the receiver is
connected.
. Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: To assure continued compliance, any changes or modifications not expressly
approved by the party responsible for compliance could void the user's authority to operate
this equipment. (Example - use only shielded interface cables when connecting to computer
or peripheral devices).
FCC Radiation Exposure Statement
This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with a minimum distance of
20 centimeters between the radiator and your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter.
The antennas used for this transmitter must be installed to provide a separation distance of at
least 20 cm from all persons and must not be co-located or operating in conjunction with any
other antenna or transmitter.
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.
Industry Canada Statement
This device complies with Industry Canada licence-exempt RSS standard.
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio
exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil
ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est susceptible d'en compromettre le
fonctionnement.
IC Radiation Exposure Statement:
This equipment complies with RSS-102 radiation exposure limit set forth for an
uncontrolled environment. This equipment should be installed and operated with minimum
distance 20 cm between the radiator and your body.
Cet équipement est conforme aux CNR-102 d'Industrie Canada. Cet équipement
doit êtreinstallé et utilisé avec une distance minimale de 20 centimètres entre le
radiateur et votrecorps. Cet émetteur ne doit pas être co-localisées ou opérant en
conjonction avec autreantenne ou émetteur. Les antennes utilisées pour cet
émetteur doivent être installés etfournir une distance de séparation d'au moins
20 centimètre de toute personne et doit pas être co-située ni fonctionner en
conjonction avec une autre antenne ou émetteur.
