FCC ID: 2AAS9CD10 MerryIoT Air Quality CO2

MerryIoT Air Quality CO2 Reference Manual Model Name: CD10 CD10-915 CD10-868 BQW_02_0032.003 1. Description The MerryIoT Air Quality CO2 is designed for in-home and in-

building usage for consumer or facility management applications. The design is optimized for high volume manufacturing, optimal battery lifetime, and pleasing aesthetics for in-building placement. Table of Content 1. Description ................................................................................ 1 2. Specifications ............................................................................ 2 2.1 Mechanical ...................................................................... 2 2.1.1 Sensor .................................................................. 2 2.2 Environmental ................................................................ 2 2.3 Power .............................................................................. 2 2.4 Radio ............................................................................... 2 2.5 User Interface ................................................................. 2 2.6 Certifications and Conformity ......................................... 2 2.7 Additional Features ......................................................... 2 3. Operation .................................................................................. 3 3.1 Installation Mode ............................................................ 3 3.2 Default Operation ........................................................... 3 Table 1. CO2 Air Quality LED indicator ......................... 3 4. Messages................................................................................... 4 4.1 Status .............................................................................. 4 4.1.1 Triggers ................................................................ 4 4.1.2 Payload ................................................................ 4 5. Battery ...................................................................................... 5 5.1 Replacement ................................................................... 5 5.2 Cautions .......................................................................... 5 6. Label format information .......................................................... 6 6.1 Device back label ............................................................ 6 6.1.1 All QR code ........................................................... 6 6.1.2 Serial Number ...................................................... 6 6.1.3 Model Name ........................................................ 6 6.1.4 FCC ID ................................................................... 7 6.1.5 IC ID ...................................................................... 7 6.1.6 Caution! ............................................................... 7 6.2 Packaging label ............................................................... 7 7. Important Product & Safety Instructions .................................. 8 8. Warnings ................................................................................... 8 9. Notices ...................................................................................... 9 10. Cautions .................................................................................. 9 11. Regulatory ............................................................................. 10 11.1 Federal Communication Commission Interference Statement ........................................................................... 10 11.2 Industry Canada statement: ....................................... 11 12. Configuration Downlink Command ....................................... 12 12.1 Configuration Command............................................. 12 12.1.2 Payload ............................................................ 12 12.2 Response Content ....................................................... 14 12.3 Frame Count 1 Content .............................................. 14 BROWAN COMMUNICATIONS INC. All rights reserved. 1 2. Specifications 2.1 Mechanical 2.1.1 Sensor Length x Width x Height Weight Sensor 90mm x 70mm x 35mm 86 g without battery 124 g with battery CO2 Temperature & Relative Humidity 2.2 Environmental Temperature 0C to +50C IP Rating IP 40 equivalent 2.4 Radio Frequency Either 863870MHz for EU models and 902928MHz for North America Rx Sensitivity

(Conducted)

-140dBm Antenna Gain

(LoRa) Antenna Gain

(BLE) 1.09dBi Peak, -5dBi Avg 2.71dBi Peak 2.6 Certifications and Conformity FCC CE IC On-going On-going On-going 3.6V AA Li-SOCI2 1200 mAH battery x 2 3.6V 2.7V 135mA maximum LED Ring with Red/Yellow/Green color indicators CO2 sensor Test Button Alarm 0cm 75dB With a proximity sensor detects within 3cm 2.3 Power Source System Maximum Voltage System Minimum Voltage Current 2.5 User Interface LEDs CO2 Button Buzzer Wave 2.7 Additional Features Battery Monitoring BROWAN COMMUNICATIONS INC. All rights reserved. 2 3. Operation 3.1 Installation Mode 3.2 Default Operation Users need to press the button over 5 seconds to activate operation into installation mode. When the Sensor tries to join the network, it will keep blinking the yellow LED for 3 seconds. Once the sensor joins the network, the yellow LED will keep on for 3 seconds and send an uplink with a CO2 value of 0. Users can press the button for over 5 seconds to try to join the network again. During default operation the device will send a message to the network anytime there is a sufficient delta in the environmental conditions CO2 over the threshold (Buzzer alarm) Button pressed (No buzzer alarm) Keepalive message (No buzzer alarm) The precise trigger values can be found in 4.1.2. Users can press the button to send a test message to the network. When the user waves in front of the sensor, the LEDs will show the CO2 status as below for 5 seconds. (Table 1). Default disable. The device will send a message that it has been inactive for 60 minutes. The device will detect the environment every 5 minutes. While in default mode the device will flash the yellow LED 3 times within 100ms only when the user presses the test button.

>1000 800~1000 400~800 CO2 PPM Air Quality LED Color Indication Red Yellow Green Poor Fair Good Table 1. CO2 Air Quality LED indicator BROWAN COMMUNICATIONS INC. All rights reserved. 3 4. Messages LoRaWAN Packets for this device use port 127 4.1 Status 4.1.1 Triggers CO2 Sensor Packet Triggers:

60-minute inactivity CO2 > 1000 ppm The device will scan the environment every 5 minutes. Button Pressed Trigger:

4.1.2 Payload Port Payload Length 127 6 bytes Immediately send a message with Temp, RH values, and CO2 as 0 within the first 5 minutes after joining. Immediately send a message with Temp, RH, and CO2 values with the last time reading after joining for more than 5 minutes. Bytes Field Status Battery 0 1 2 4 5 Status Battery Temp. CO2 3 RH Sensor status Bits [0]

Bits [1]

Bits [2]

Bits [3]

Bits [4]

Bits [5:7]

Battery level Bits [3:0]

Bits [7:4]

1 Trigger Event, 0 Keepalive 1 Button pressed, 0 - Button released RFU RFU 1 - CO2 is over the threshold (CO2 > 1200 ppm) RFU unsigned value , range 0 15. battery voltage in V = (21 + ) 10. RFU Temp Environment Temperature Bits [7:0]

sign integer temperature in C

-20~50 C RH Relative humidity as measured by the digital sensor Bits [6:0]

Bit [7]

unsigned value in %, range 0-100. RFU CO2 CO2 equivalent estimate Bits [15:0]

Estimation of the CO2 level in ppm. BROWAN COMMUNICATIONS INC. All rights reserved. 4 5. Battery 5.1 Replacement Use ER14505 (3.6V AA Li-SOCI2) only. Remove the battery cover and replace the batteries.

(Cross-slot screwdriver required) 5.2 Cautions CAUTION: Disposal of a battery (or battery pack) into a fire or a hot oven, or mechanically crushing or cutting of a battery (or battery pack) can result in an EXPLOSION!

Leaving a battery (or battery pack) in an extremely high temperature surrounding environment can result in an EXPLOSION or leakage of flammable liquid or gas. A battery (or battery pack) subjected to extremely low air pressure may also result in an EXPLOSION or leakage of flammable liquid or gas. Discard used batteries according to the manufacturer's instructions. CAUTION: The unit is provided with a battery-powered circuit. There is a danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturers instructions. Risk of Explosion if Battery is replaced by an Incorrect Type. Dispose of Used Batteries according to the Instructions. BROWAN COMMUNICATIONS INC. All rights reserved. 5 6. Label format information 6.1 Device back label 6.1.1 All QR code SN:CD10915XXXXXX Model:CD10 FCC ID:2AAS9CD10 IC:26296-CD10 6.1.2 Series Number 6.1.3 Model Name 6.1.4 FCC ID 6.1.5 IC ID 6.1.1 All QR code URN:LW:D0:

0016160000000003:0016160000XXXXXX:01632001 The total maximum resulting character sentence is 48 alphanumeric characters long. 6.1.1.1 JoinEUI 900MHz: 0016160000000003. (US) 800MHz: 0016160000000004. (EU) 6.1.1.2 DevEUI 0016160000XXXXXX. Uses a hexadecimal representation resulting in 16 characters. Uses a hexadecimal representation resulting in 16 characters 6.1.1.3 ProfileID The profile identifier encodes a Vendor Identifier and a Vendor Profile Identifier as a hexadecimal representation resulting in 8 characters. 6.1.1.3.1 VendorID 0163 VendorID is assigned by the LoRa Alliance. 6.1.1.3.2 VendorProfileID 900MHz: 2001 (US) 800MHz: 3001 (EU) 6.1.2 Serial Number SN: CD10915XXXXXX Not including in QR code. 6.1.3 Model Name MODEL: CD10. Fixed code, not including in QR code. BROWAN COMMUNICATIONS INC. All rights reserved. 6 For more information, please refer to chapter 5.2. and 10. The GS1 Application Identifier (21) indicates that the GS1 Application Identifier data field contains a serial number. The GS1 Application Identifier (92) assigned to the companys internal information is DevEUI.

*NOTE: different SKU with different number. 6.1.4 FCC ID 2AAS9CD10 6.1.5 IC ID 26296-CD10 6.1.6 Caution!

6.2 Packaging label GS1 DataMatrix Barcode (Code 128) SKU No.:

SEN-000104-915 BROWAN COMMUNICATIONS INC. All rights reserved. 7 7. Important Product & Safety Instructions For the most current and more detailed information about Browan features and settings as well as safety instructions, please download the user manual for the products online at www.browan.com before the use of any Browan products or services. Certain sensors contain magnets. Keep away from ALL Children! Do not put it in your nose or mouth. Swallowed magnets can stick to intestines causing serious injury or death. Seek immediate medical attention if magnets are swallowed. These products are not toys and contain small parts that can be dangerous to children under 3 years old. Do not allow children or pets to play with products. Observe proper precautions when handling batteries. Batteries may leak or explode if improperly handled. Observe the following precautions to avoid a sensor explosion or fire:

Do not drop, disassemble, open, crush, bend, deform, puncture, shred, microwave, incinerate, or paint the sensors, Hub, or other hardware. Do not insert foreign objects into any opening on the sensors or Hub, such as the USB port. Do not use the hardware if it has been damagedfor example, if cracked, punctured, or harmed by water. Disassembling or puncturing the battery (whether integrated or removable) can cause an explosion or fire. Do not dry the sensors or battery with an external heat source such as a microwave oven or hairdryer. 8. Warnings Do not place naked flame sources, such as lighted candles, on or near the equipment. Observe the plus (+) and minus (-) marks on the battery and equipment and ensure correct use. The battery shall not be exposed to excessive heat such as sunshine, fire, or the like. Do not use any which is not designed for use with the product. Do not dismantle, open or shred battery packs or cells. Do not expose batteries to heat or fire. Avoid storage in direct sunlight. Do not short-circuit the battery. Do not store batteries in a box or drawer where they may short-circuit each other or be short-circuited by other metal objects. Do not remove a battery from its original packaging until required for use. Do not subject batteries to mechanical shock. In the event of a battery leaking, do not allow the liquid to come in contact with the skin or eyes. If a contact has been made, wash the affected area with copious amounts of water, and seek medical advice. Do not use any charger other than that specifically provided for use with the equipment. Do not mix cells of different manufacture, capacity, size, or type within a device. Keep batteries out of the reach of children. Seek medical advice immediately if a battery has been swallowed. Always purchase the correct battery for the equipment. Keep batteries clean and dry. Wipe the battery terminals with a clean dry cloth if they become dirty. BROWAN COMMUNICATIONS INC. All rights reserved. 8 9. Notices Avoid exposing your sensors or batteries to very cold or very hot temperatures. Low or high-temperature conditions may temporarily shorten the battery life or cause the sensors to temporarily stop working. Take care in setting up the Hub Gateway and other hardware. Follow all installation instructions in the User Guide. Failure to do so may result in injury. PROP 65 WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm Cleaning Browan Products: Use a clean dry cloth or wipe to clean Browan products. Do not use detergent or abrasive materials to clean the Browan products, as this may damage the sensors. Do not install hardware equipment while standing in water or with wet hands. Failure to do so can result in electric shock or death. Use caution when setting up all electronic equipment. When charging the sensors, do not handle the sensors with wet hands. Failure to observe this precaution could result in electric shock. 10. Cautions CAUTION: Disposal of a battery (or battery pack) into a fire or a hot oven, or mechanically crushing or cutting of a battery (or battery pack) can result in an EXPLOSION!

CAUTION: The unit is provided with a battery-powered circuit. Leaving a battery (or battery pack) in an extremely high temperature surrounding environment can result in an EXPLOSION or leakage of flammable liquid or gas. A battery (or battery pack) subjected to extremely low air pressure may also result in an EXPLOSION or leakage of flammable liquid or gas. Discard used batteries according to the manufacturer's instructions. There is a danger of EXPLOSION if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturers instructions. Risk of EXPLOSION if Battery is replaced by an Incorrect Type. Dispose of Used Batteries According to the Instructions. BROWAN COMMUNICATIONS INC. All rights reserved. 9 11. Regulatory Hereby, Browan Communications Inc. declares that the radio equipment for Browan products complies with Directive 2014/53/EU. This device complies with Part 15 of the FCC Rules and RSS Standards of Industry Canada. 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 symbol means that according to local laws and regulations your product should be disposed of separately from household waste. When this product reaches its end of life, take it to a collection point designated by local authorities. Some collection points accept products for free. The separate collection and recycling of your product at the time of disposal will help conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment. 11.1 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: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. 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. IMPORTANT NOTE:

Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Country Code selection feature to be disabled for products marketed to the US/CANADA Operation of this device is restricted to indoor use only BROWAN COMMUNICATIONS INC. All rights reserved. 10 11.2 Industry Canada statement:

This device contains license-exempt transmitter(s)/receiver(s) that comply with Innovation, Science, and Economic Development Canadas license-exempt RSS(s). Operation is subject to the following two conditions:

(1) This device may not cause interference

(2) This device must accept any interference, including interference that may cause undesired operation of the device Cet appareil contient des metteurs / rcepteurs exempts de licence qui sont conformes au (x) RSS (s) exempts de licence d'Innovation, Sciences et Dveloppement conomique Canada. L'opration est soumise aux deux conditions suivantes :

(1) Cet appareil ne doit pas causer d'interfrences

(2) Cet appareil doit accepter toute interfrence, y compris les interfrences pouvant provoquer un fonctionnement indsirable de l'appareil. Radiation Exposure Statement:

This equipment complies with Canada radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. Dclaration d'exposition aux radiations:

Cet quipement est conforme Canada limites d'exposition aux radiations dans un environnement non contrl. Cet quipement doit tre install et utilis distance minimum de 20cm entre le radiateur et votre corps. BROWAN COMMUNICATIONS INC. All rights reserved. 11 12.1.2 Payload Port Bytes Field 12. Configuration Downlink Command 12.1 Configuration Command 204 0 Cmd 0~1 Config Cmd Command 1 byte Bit [7:0]

0x00 Set keep-alive value & Detection Interval. Keepalive default value: 12 => 12*5 min = 60 min Per unit: 5min Value range: 1~216 (5min ~ 18hours)

*Note: 0 means no changes Detection Interval value (0 means no change): 5 minutes value range: 1~216 (5min ~ 18hours)

*Note: Must be shorter than or equal to keepalive 0x03 Set buzzer alarm period(seconds) only for over CO2 threshold, Enable/Disable CO2 and Enable/Disable proximity sensor Buzzer alarm period default: 3 CO2 Sensor default: Enable Proximity Sensor default: Disable 0x04 - Set CO2 threshold CO2 threshold default value :1000 value range: 400~65535 0x05 - Set CO2 Calibration Value. default value :400 value range: 400~2000 Config Configuration 0~11 bytes See the table as follows:

Cmd Command Description Config Length 0x00 Get Sensor Configuration 0 bytes

(Only for unconfirmed downlink)

*Note: little-endian format. 0x00 Set keep-alive value & detection Interval. (per unit:5min) 2 bytes

[0~7] Keepalive value

[8~15] Detection Interval (must shorter than or equal to keep alive) BROWAN COMMUNICATIONS INC. All rights reserved. 12 0x03

[0~5] Buzzer alarm period in seconds 1 byte

*Note: little-endian format. 0~63 seconds

[6] Enable/Disable CO2 sensor 0: disable 1: enable(default)

[7] Enable/Disable proximity sensor 0: disable (default) 1: enable 0x04 Set CO2 threshold

*Note: little-endian format. 0x05 Set CO2 Calibration Value

(400~2000 PPM)

*Note: little-endian format. 2 bytes 2 bytes Payload Content Command content Ex:

000C01 || 0343 || 04E803 || 059001 00 0C01 => Set keep alive value: 0x0C -> 12 (*5min) = 60 min (per unit:5min) , Detection Interval 0x01-> 1 (*5min) = 5 minutes (if 0 means no change)(per unit:5min) 03 43 => Buzzer alarm period in 3 seconds, enable CO2 and disable proximity sensor: 0x43 04 E803 => Set CO2 threshold: 0xE803 -> 1000 05 9001 => Set CO2 calibration: 0x9001 -> 400 06 05 => Set CO2 Detection Interval: 0x05 -> 5 minutes BROWAN COMMUNICATIONS INC. All rights reserved. 13 12.2 Response Content

(Only for unconfirmed downlink) Port Payload Length 204 11 bytes Payload Content Response content Ex:

000C01 0343 04B004 0590 0605 00 0C01 => Set keep alive value: 0x0C -> 12 (*5min) = 60 min (per unit:5min), , Detection Interval =1* 5 minutes (if 0 means no change)(per unit:5min) 03 43 => Buzzer alarm period in 3 seconds, enable CO2 and disable proximity sensor: 0x43 04 E803 => Set CO2 threshold: 0xE803 -> 1000 05 9001 => Set CO2 calibration: 0x9001 -> 400 06 05 => Set CO2 Detection Interval: 0x05 -> 5 12.3 Frame Count 1 Content Payload Length 9 bytes Payload Content Frame count 1 content Ex:

01 01200000 7ff1f102 01 => command ID 01200000 => HW ID: 0x00002001 (little-endian format) 7ff1f102 => FW Version: 0x02f1f17f (little-endian format) BROWAN COMMUNICATIONS INC. All rights reserved. 14

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