2A9ZQ-S90Smart Bicycle Lock

2 1. Document Version Revision Revised by Date Description V1.0 Alexander De Bievre 31/03/2022 First version 2. Overview This document describes the basic information and functions of the Sentinel S90 smart lock. 3 3. Sentinel S90 smart lock introduction 3.1 Product appearance and dimensions 4 3.2 Basic parameters of the Sentinel M60 smart lock Buzzer 385dB Open lock APP, or Back office unlock Close lock Manually charging 5V/2A Solar panel charging 4.5-6V Battery 5000mAH/ 3.7V Normal mode standby 30 days at 25°C Power saving mode standby 12 months at 25°C Shell material ADC12/SUS304 Locking bar material 304 stainless steel locking bar. Waterproof and dustproof IP66 Operating temperature -10°C ~ +60°C Charging temperature 0°C ~ +45°C 5 Working humidity 10 ~ 95% Stand-by current < 6mA SIM card Nano SIM card Motion sensor 3-axis motion sensor Color Black (Customization available) Weight 1.2kg Communication with E-Bike UART/CANBUS (via S-BOX) LED - Red light on three times: Alarm event is triggered. - Blue breathing light: Registering to the network. - White light: Enter power saving mode or restart. - Continuous red light: Over-the-air (OTA) upgrade is in progress. 6 3.2.1 Bluetooth performance Frequency 2402~2480MHz Sensitivity -93dBm(Typical) RF Power 9dBm(Max) Protocol BLE5.0 4. Function description After the Bluetooth module is powered on, it broadcasts as a slave according to the BLE5.0 communication protocol. The broadcasting interval is 2 seconds, waiting for the host to search and connect. After the Bluetooth module is successfully connected to other devices, handshake and encrypted communication are performed according to the communication protocol defined by our company. When the Bluetooth module is powered off, or the connected device cuts off the communication, the Bluetooth module stops working. 5.1 6PIN Connector 7 The S90 lock has a 6PIN connector, which allows for a lot of expandable features through the connector, including Solar panel charging, EBIKE integration, Type-C charging, etc. 5.2 Magnetic charging —7.70±0± Magnetic charging allows for a sleeker and simpler charging experience for the user. 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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: 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 on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help.

Sentinel NV 1/1 Letter of Authorization Company: Sentinel NV Address: Kempische steenweg 303 Bus 200 Hasselt, Belgium Product Name: Smart Bicycle Lock Model Number: S90 FCC Identifier: 2A9ZQ-S90 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: justin.zhao Date: 2023-01-11 Title: Manager Signature of applicant:

Sentinel NV 1/1 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023-01-11 Subject: Request for Confidentiality FCC ID: 2A9ZQ-S90 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual No ☐ Internal Photos No ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: justin.zhao Title: Manager

Size:58*38mm M/N: S90 FCC ID: 2A9ZQ-S90 Label location

BT ANT

Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20221230031E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 24 FCC Part 15C Test Report FCC ID: 2A9ZQ-S90 Applicant: Sentinel NV Address: Kempische steenweg 303 Bus 200 Hasselt, Belgium Manufacturer: Sentinel Intelligent Technology (Wuxi) Co., Ltd. Address: G1-301, China Internet of Things International Innovation Park, Linghu Road, Xinwu District, Wuxi City EUT: Smart Bicycle Lock Trade Mark: Model Number: S90 Date of Receipt: Dec. 16, 2022 Test Date: Dec. 16, 2022 - Dec. 30, 2022 Date of Report: Dec. 30, 2022 Prepared By: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Building C, Shuanghuan, No.8, Baoqing Road, Baolong Industrial Zone, Baolong Street, Longgang District, Shenzhen, Guangdong, China Applicable Standards: FCC PART 15 C 15.249 ANSI C63.10:2013 Test Result: Pass Report Number: DL-20221230031E Prepared (Test Engineer): Pxing Huang Reviewer (Supervisor): Jack Bu Approved (Manager): Jade Yang This test report is based on a single evaluation of one sample of above mentioned products. It is not permitted to be duplicated in extracts without written approval of Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20221230031E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 24 Table of Contents Page 1 . SUMMARY OF TEST RESULTS 4 1.1 MEASUREMENT UNCERTAINTY 4 2 . GENERAL INFORMATION 5 2.1 GENERAL DESCRIPTION OF EUT 5 2.2 DESCRIPTION OF TEST MODES 6 2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 7 2.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 7 2.5 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 7 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 8 3 . EMC EMISSION TEST 9 3.1 CONDUCTED EMISSION MEASUREMENT 9 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 9 3.1.2 TEST PROCEDURE 9 3.1.3 DEVIATION FROM TEST STANDARD 9 3.1.4 TEST SETUP 10 3.1.5 EUT OPERATING CONDITIONS 10 3.1.6 TEST RESULTS 10 3.2 RADIATED EMISSION MEASUREMENT 11 3.2.1 RADIATED EMISSION LIMITS 11 3.2.2 TEST PROCEDURE 12 3.2.3 DEVIATION FROM TEST STANDARD 12 3.2.4 TEST SETUP 12 3.2.5 EUT OPERATING CONDITIONS 13 3.2.6 TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 14 3.2.7 TEST RESULTS (BETWEEN 30MHZ – 1GHZ) 15 3.2.8 TEST RESULTS (1GHZ~25GHZ) 17 3.3 RADIATED BAND EMISSION MEASUREMENT 18 3.3.1 TEST REQUIREMENT: 18 3.3.2 TEST PROCEDURE 18 3.3.3 DEVIATION FROM TEST STANDARD 18 3.3.4 TEST SETUP 19 3.3.5 EUT OPERATING CONDITIONS 19 4 . BANDWIDTH TEST 21 4.1 APPLIED PROCEDURES / LIMIT 21 4.1.1 TEST PROCEDURE 21 4.1.2 DEVIATION FROM STANDARD 21 4.1.3 TEST SETUP 21 4.1.4 EUT OPERATION CONDITIONS 21 Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20221230031E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 3 of 24 Table of Contents Page 4.1.5 TEST RESULTS 22 5 . ANTENNA REQUIREMENT 23 5.1 STANDARD REQUIREMENT 23 5.2 EUT ANTENNA 23 6 . TEST SEUUP PHOTO 24 7 . EUT PHOTO 24 Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20221230031E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 4 of 24 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.249) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission N/A 15.205(a), 15.209(a) 15.249(a), 15.249(c) Fundamental &Radiated Spurious Emission Measurement PASS 15.249(d) Band Edge Emission PASS 15.215(c) 20dB Bandwidth PASS 15.203 Antenna Requirement PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report 1.1 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2,providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 Conducted Emission Test ±2.56dB 2 RF power,conducted ±0.42dB 3 Spurious emissions,conducted ±2.76dB 4 All emissions,radiated(<1G) ±3.65dB 5 All emissions,radiated(>1G) ±4.89dB 6 Temperature ±0.5°C 7 Humidity ±2% Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20221230031E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 5 of 24 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Product Name: Smart Bicycle Lock Trademark Model No.: S90 Model Difference N/A Operation Frequency: 2402~2480MHz Channel numbers: 40 Channels Channel separation: 2M Modulation technology: GFSK Antenna Type: Internal Antenna Antenna gain: 3.38dBi Power supply: DC 3.7V from battery Note: 1.For a more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. 2.The EUT’s all information provided by client. Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20221230031E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 6 of 24 3. Channel List Channel Frequency (MHz) Channel Frequency (MHz) Channel Frequency (MHz) 00 2402 14 2430 27 2456 01 2404 15 2432 28 2458 02 2406 16 2434 29 2460 03 2408 17 2436 30 2462 04 2410 18 2438 31 2464 05 2412 19 2440 32 2466 06 2414 20 2442 33 2468 07 2416 21 2444 34 2470 08 2418 22 2446 35 2472 09 2420 23 2448 36 2474 10 2422 24 2450 37 2476 11 2424 25 2452 38 2478 12 2426 26 2454 39 2480 13 2428 / / / / 2.2 DESCRIPTION OF TEST MODES Note: (1) The measurements are performed at the highest, middle, lowest available channels. (2) A new fully charged battery was used for testing during the test. To investigate the maximum EMI emission characteristics generates from EUT, the test system was pre-scanning tested base on the consideration of following EUT operation mode or test configuration mode which possible have effect on EMI emission level. Each of these EUT operation mode(s) or test configuration mode(s) mentioned above was evaluated respectively. Pretest Mode Description Mode 1 CH00 GFSK Mode 2 CH19 Mode 3 CH39 Mode 4 Link Mode For Conducted & Radiated Emission Final Test Mode De…

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Summary Antenna Specification ITEMANT SPEC Model Name2.4G ANT MAX. Gain 3.38dBi PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length38.20mm Manufacture Shenzhen Xianlong Technology Co., Ltd. Antenna Photo & Length (mm) ÏÚ 2‹ Œøº∑ø ̈∑±≤ Ω ∏øÆøΩ ̈ªÆ∑≠ ̈∑Ω≠ ±∫ ø≤ ̈ª≤≤ø PHI 0° PHI90° THETA90 °

Radiated Measurement Photos