2AA23-AIRQTAir Comfort

We do not assume liability for resulting damages to property or personal injury if the product has been abused in any way or damaged by improper use or failure to observe these operating instructions. The warranty/guarantee will then expire. • The product is not a toy and should be kept out of reach of children. • Do not subject the unit to excessive force, shock, dust, temperature or humidity. • Do not immerse the unit in water. If you spill liquid over it, dry it immediately with a soft, lint-free cloth. • Do not clean the unit with abrasive or corrosive materials. • Do not tamper with the unit’s internal components. This invalidates the warranty. • If there is reason to believe that safe operation is no longer possible, the device is to be put out of operation and secured against unintended operation. Safe operation is no longer possible if the device: - no longer works - shows visible damages - was stored under unfavourable conditions for a long period of time - was subject to considerable transport stress • When disposing of this product, ensure it is collected separately for special treatment and not as normal household waste. • Repair works must only be carried out by a specialist / workshop. • Images shown in this manual may dier from the actual display. • The contents of this manual may not be reproduced without the permission of the manufacturer. User Manual. Temperature & Humidity Sensor S af et y Instructions This pack contains one Temperature & Humidity sensor and one CR2354 battery. Content EN 1. Download the app by scanning the above code. 2. Insert the battery by unscrewing the cover in an anti-clockwise direction. Place a CR2354 battery into the underside of the device with the positive side facing downwards. Then replace the cover. 3. Synchronise the app with the Temperature & Humidity sensor to start recording. 4. Place the device in the area you choose to measure temperature. Hereby, Tektos Ecosystems Limited, declares that the provided Temperature & Humidity sensor (Model: AIRQT0A) is in conformity with the requirements of Directive 1999/5/EC. A copy of the signed and dated Declaration of Conformity is available on request. I nstructions Temperature & Humidity™ is a trademark of Tektos Ltd registered in Hong Kong and other countries. Trademark EU Declaration of Conformity CR2354 1 2 Download App measures: -- Reorient or relocate the receiving antenna. -- Consult the dealer or an experienced radio/TV technician for help. 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 complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator & your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Changes or modications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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 o and on, the user is encouraged to try to correct the interference by one or more of the following FCC Compliance Statement Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to instructions Caution bring the appliances to these collecting points or to similar collection points. With this little personal eort, you contribute to recycle valuable raw materials and the treatment of toxic substances. Old electrical appliances must not be disposed of together with the residual waste, but have to disposed of separately. The disposal at the communal collecting point via private persons is for free. The owner of old appliances is responsible to Specication No software update needed. Battery TypeCR2354 (3V) Temperature SensorRange: -25°C to 45°C Accuracy at 25°C: ±0.5°C Humidity SensorRange: 0% to 100% Accuracy at 70%: ±4.5% ConnectivityiPhone / Android Connectivity Range Battery LifeUp to 1.5 years Maintenance Environmental Friendly Disposal FCC Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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 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…

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Tektos Limited Agent Authorization Company: Tektos Limited Address: Room F, 20/F, Kwong Ga factory Building, 64 Victoria Road, Kennedy Town, Hong Kong Product Name: Air Comfort Model Number(s): AIRQT Product Description: Air Comfort We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2022/06/30 Name: Federic Vautard Title: R & D Manager Company: Tektos Limited

Tektos Limited Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2022/06/30 Subject; Request for Confidentiality FCC ID: 2AA23-AIRQT To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuantto KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Federic Vautard Title: R & D Manager

External Photos

Size:10*10mm FCC ID: 2AA23-AIRQT Label location

Internal Photos Antenna

FCC ID: 2AA23- AIRQT RF exposure evaluation §2.1093 Radiofrequency radiation exposure evaluation: Portable Devices. According to§15.247(i) and§1.1307b(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the commission’s guidance. The 1-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR, where  f(GHz) is the RF channel transmit frequency in GHz  Power and distance are rounded to the nearest mW and mm before calculation  When the minimum test separation distance is < 5 mm, a distance of 5 mm according is applied to determine SAR test exclusion.  The result is rounded to one decimal place for comparison BLE Modulation Frequency (GHz) Max. Power (dBm) Tune up Power (dBm) Max. Tune up Power (dBm) Max. Tune up Power (mW) Test distance (mm) Result exclusion thresholds for 1-g SAR GFSK 2.402 -0.886 -1±1 0 1 5 0.31 3.0 Conclusion: For the max result : 0.31W/Kg ≤ FCC Limit 3.0 for 1g SAR. The Product unsupported at the same time to Transmitting.

No.：BCTC/RF-EMC-007 Page: 1 of 38 Edition：A.4 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2206700924E Applicant: Tektos Limited Product Name: Air Comfort Model/Type reference: AIRQT Tested Date: 2022-06-23 to 2022-06-27 Issued Date: 2022-06-27 Report No.: BCTC2206700924E No.：BCTC/RF-EMC-007 Page: 2 of 38 Edition：A.4 FCC ID:2AA23- AIRQT The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. Product Name: Air Comfort Trademark: Tektos Model/Type reference: AIRQT Prepared For: Tektos Limited Address: Room F, 20/F, Kwong Ga factory Building, 64 Victoria Road, Kennedy Town, Hong Kong Manufacturer: Hong Kong Di Tuo Si (Shenzhen) Co., Ltd Address: Floor 5th, Building A, Gangzhilong Business Center Heping East Road, Longhua District, shenzhen, Guangdong, China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Tangwei, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2022-06-23 Sample tested Date: 2022-06-23 to 2022-06-27 Issue Date: 2022-06-27 Report No.: BCTC2206700924E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is Bluetooth BLE radio test report. Tested by: Approved by: Brave Zeng/ Project Handler Zero Zhou/Reviewer Report No.: BCTC2206700924E No.：BCTC/RF-EMC-007 Page: 3 of 38 Edition：A.4 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 9 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List ........................................................................................................ 10 4.5 Test Mode ........................................................................................................... 10 4.6 Table of parameters of text software setting ....................................................... 10 5. Test Facility And Test Instrument Used ............................................................... 11 5.1 Test Facility ......................................................................................................... 11 5.2 Test Instrument Used .......................................................................................... 11 6. Conducted Emissions .......................................................................................... 13 6.1 Block Diagram Of Test Setup .............................................................................. 13 6.2 Limit .................................................................................................................... 13 6.3 Test procedure .................................................................................................... 13 6.4 EUT Operating Conditions .................................................................................. 13 6.5 Test Result .......................................................................................................... 13 7. Radiated Emissions ............................................................................................. 14 7.1 Block Diagram Of Test Setup .............................................................................. 14 7.2 Limit .................................................................................................................... 15 7.3 Test procedure .................................................................................................... 16 7.4 EUT operating Conditions ................................................................................... 17 7.5 Test Result .......................................................................................................... 18 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 22 8.1 Block Diagram Of Test Setup .............................................................................. 22 8.2 Limit .................................................................................................................... 22 8.3 Test Procedure ................................................................................................... 23 8.4 EUT Operating Conditions .................................................................................. 23 8.5 Test Result .......................................................................................................... 24 9. Power Spectral Density Test ............................................................................... 25 9.1 Block Diagram Of Test Setup .............................................................................. 25 9.2 Limit .................................................................................................................... 25 9.3 Test procedure .................................................................................................... 25 9.4 EUT Operating Conditions .................................................................................. 25 9.5 Test Result ...........…

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Report No.: BCTC2206700924E No.：BCTC/RF-EMC-007 Page: 37 of 38 Edition：A.4 15. EUT Test Setup Photographs Radiated Measurement Photos