2AL8A-QWA2250KTDoor/window Sensor with Thread

Date (06/22/2026) TUV SUD BABT UNLIMITED TCB Octagon House, Concorde Way Segensworth North, Fareham, Hampshire, PO15 5RL, United Kingdom Confidentiality Request FCC ID: 2AL8A-QWA2250KT Pursuant to Sections 0.457(d)(1)(ii) and 0.459 of the Commission’s Rules, (Beijing Siemens Cerberus Electronics Ltd.) hereby requests permanent confidential treatment of information accompanying this application as outlined below: Schematics Bill of Materials/BOM Block Diagrams Theory of Operation] (Beijing Siemens Cerberus Electronics Ltd.) also hereby requests short-term confidential treatment of information accompanying this application as outlined below for a period of 180 days Internal Photos External Photos User Manual Test Set-up Photographs The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457(d)(1)(ii), disclosure of this Application and all accompanying materials will not be made before the date of the Grant for this Application. Yours sincerely, Company Officer: Yanming Li Telephone Number: +8613810094145 Email: [email protected]

Date (06/22/2026) To: Federal Communications Commission 7435 Oakland Mills Road Columbia MD FCC ID: 2AL8A-QWA2250KT To Whom It May Concern: This letter is to ascertain that Beijing Siemens Cerberus Electronics Ltd. Product name: Door/window sensor Thread, Model: QWA2250KT has been the units used for conducting FCC compliance testing, the SDoC part will be tested by FCC recognized test lab. If you have any question or concerns, please contact us. Sincerely, Signature: Contact name: Yanming Li Company name: Beijing Siemens Cerberus Electronics Ltd. Address: NO 1 FengZhiDongLu, Xibeiwang, Haidian District, 100094 Beijing, PEOPLE'S REPUBLIC OF CHINA E-mail: [email protected] Tel: +8613810094145

s c Siemens Switzerland Ltd Doc. type: ECO/TM: Responsible: Date: Checked: Drawn: Volume: 3 CorelDRAW Mass: Scale: en First Use: General tol.: See the Table S Rev: Page: b DIN A4 a 12 Yang Yujin Lina 01-Jul.-2026 CN-PEK/CPS 1:1 QWA2250KT product label laser marking drawing A5W02938970A AA-002 / 1 1 The product does not exceed the maximum concentration values of restricted substances in homogeneous materials tolerated by weight as set out in Annex II of the Directive 2011/65/EU (RoHS) in the version applicable at the time of delivery. Table S Standard GB/T 1804-m ISO 2768-m Required Y Unit: mm AA-002 Deleted KNX marking and changed the location of FCC ID ,IC ID and CAN. Laser marking content: s QWA2250KT S55720-S709 T50 IP30 3V 2xCR2032 Country of Origin: China Siemens Switzerland Ltd, CH-6300 Zug YYYYMMDD A I o T 2 S Scan t o Join S/N:00FD XXXXXXXX EUI:XXXXXXXXXXXXXXXXP:XXXXXXXXXXXX P A:XXXXXXXXXXXXXX Note: 1.DMC1(5x5mm) content: S55720-S709+QWA2250KT+A+YYXXXXXXXX+YYYYMMDD1P31P2PFS43S16D 1)16DYYYYMMDD: YYYY: year, MM: month, DD: day 2)A: Product version(Mass product version refer to product survey Doc. ; Z for 0-series build; MS1, MS2... for MS build; ES 1,ES2... for ES build ) 3)43SYYXXXXXXXX: YY:factory/suppier code(e.g.:14=factory Zug,16=factory BSCE,6A=supplier GVS) XXXXXXXX: consecutively number(Hex),managed by factory/supplier. 2. DMC2(9x9mm) content: QWA2250KT+00FDXXXXXXXX+EUI:XXXXXXXXXXXXXXXX.P:XXXXXXXXXXXX.PA:XXXXXXXXXXXXXX 31P41S3Z 1)41S00FDXXXXXXXX: 12-character hexadecimal KNX serial number. 2)3ZEUI:XXXXXXXXXXXXXXXX.P:XXXXXXXXXXXX.PA:XXXXXXXXXXXXXX: EUI is device network address; P and PA are passwords used as joining device credential, P fields 12 characters, PA fields 14 characters, composition of both: only capital letters and numbers (0-9 and A-Y) can be used, for the sake of readability, the letters I,O,Q,Z are not allowed to be used. 3. Font requirement: s: Font: Siemens logo QWA2250KT: Font: Siemens sans black Other texts: Font: Siemens sans 4. Laser marking must be clearly s QWA2250KT S55720-S709 T50 IP30 3V 2xCR2032 Country of Origin: China Siemens Switzerland Ltd, CH-6300 Zug YYYYMMDD A I o T 2 S IC ID:XXXXXXXXXXXXXXXX CAN ICE-3(B)/NMB-3(B) FCC ID:XXXXXXXXXXXXXXXX S/N:00FD XXXXXXXX EUI:XXXXXXXXXXXXXXXXP:XXXXXXXXXXXX P A:XXXXXXXXXXXXXX s QWA2250KT S55720-S709 T50 IP30 3V 2xCR2032 Country of Origin: China Siemens Switzerland Ltd, CH-6300 Zug YYYYMMDD A IC ID:XXXXXXXXXXXXXXXX CAN ICE-3(B)/NMB-3(B) FCC ID:XXXXXXXXXXXXXXXX S/N:00FD XXXXXXXX EUI:XXXXXXXXXXXXXXXXP:XXXXXXXXXXXX P A:XXXXXXXXXXXXXX I C I D : 2 2 7 9 5 - Q W A 2 2 5 0 K T C A N I C E - 3 ( B ) / N M B - 3 ( B ) F C C I D : 2 A L 8 A Q W 2 2 5 0 K T Scan t o Join Scan t o Join I C I D : 2 2 7 9 5 - Q W A 2 2 5 0 K T C A N I C E - 3 ( B ) / N M B - 3 ( B ) F C C I D : 2 A L 8 A Q W 2 2 5 0 K T

Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn RF Exposure MPE Report Reference No. ..................... : FCC ID............................................. : CTA26041403502 2AL8A-QWA2250KT Compiled by ( position+printed name+signature) . : File administrators Zoey Cao Supervised by ( position+printed name+signature) . : Project Engineer Ace Chai Approved by ( position+printed name+signature) . : RF Manager Eric Wang Date of issue .................................... : 04 June 2026 Testing Laboratory Name .............. : Shenzhen CTA Testing Technology Co., Ltd. Address............................................ : Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Applicant’s name ............................ : Beijing Siemens Cerberus Electronics Ltd. Address............................................ : 1, Fengzhi East Road, Xibeiwang, Haidian District 100094 BEIJING, China Standard ........................................... : 47CFR §1.1310 47CFR §2.1091 KDB447498 D01 General RF Exposure Guidance v06 Shenzhen CTA Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purpses as long as the Shenzhen CTA Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTA Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : Door/window sensor Thread Trade Mark ....................................... : Siemens Manufacturer .................................... : Siemens Switzerland Ltd. Model/Type reference ...................... : QWA2250KT Listed Models ................................... : N/A Modulation ....................................... : OQPSK Rating ............................................... : Input: 3V 2xCR2032 Result ............................................... : PASS Report No.: CTA26041403502 Page 2 of 8 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn T E S T R E P O R T Equipment under Test : Door/window sensor Thread Model /Type : QWA2250KT Listed Models : N/A Model difference : N/A Applicant : Beijing Siemens Cerberus Electronics Ltd. Address : 1, Fengzhi East Road, Xibeiwang, Haidian District 100094 BEIJING, China Manufacturer : Siemens Switzerland Ltd. Address : Theilerstrasse 1a CH-6300 Zug / Switzerland Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: CTA26041403502 Page 3 of 8 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn Contents 1 TEST STANDARDS ............................................................................................................ 4 2 SUMMARY .......................................................................................................................... 5 2.1 General Remarks ..................................................................................................... 5 2.2 Product Description ................................................................................................. 5 2.3 Special Accessories ................................................................................................. 5 2.4 Modifications ............................................................................................................ 5 3 TEST ENVIRONMENT ....................................................................................................... 6 3.1 Address of the test laboratory .................................................................................. 6 3.2 Test Facility .............................................................................................................. 6 3.3 Statement of the measurement uncertainty ............................................................. 6 4 Test limit .............................................................................................................................. 7 4.1 Requirement ............................................................................................................ 7 4.2 MPE Calculation Method ......................................................................................... 7 4.3 Conducted Power Results ....................................................................................... 7 4.4 Manufacturing tolerance .......................................................................................... 7 4.5 Standalone MPE Result ........................................................................................... 8 4.6 Simultaneous Transmission for MPE Result ........................................................... 8 5 Conclusion ........................................................................................................................... 8 Report No.: CTA26041403502 Page 4 of 8 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected]…

Text truncated - open the document above for the full version.

规格承认书 SPECIFICATION FOR APPROVAL 日期 Date 2025/12/22 编号 File No 25122201 版本 Revision 1.0 客户 CUSTOMER: 视声智能 客户料号 CUSTOMER NO: ZK2502门磁 品名 PARTNAME: BT Antenna 供方料号 SUPPLIERNO: YJL01.098.039.302A 东莞市长安镇沙头社区木鱼路59号Tel:0769-82586086 Fax:0769-82586086 SUPPLIERNO: YJL01.098.039.302A 送样日期Date: 送样数量Q'TY: 客户确认CUSTOMER APPROVED BY APPROVALCHIEFSUPERVISOR 供方确认SUPPLIER SIGNATURE APPROVALCHECKDESIGN ChenGuoqiangZhangLiqunLiaoGuangxi YJ-RD-F04-A 承认书项目表 NO . 内容 （Contents） 页数 （Number of Page） 页码 （Page Code） 1 承认书封面（Spec Cover） 11 2 承认书项目表（ Spec Item ） 12 3 工程成品图（ Drawing） 13 4 天线规格（ Antenna Specification） 14 5 S参数测试（S Parameter ） 15 东莞市长安镇沙头社区木鱼路59号Tel:0769-82586086 Fax:0769-82586086 5 S参数测试（S Parameter ） 15 6 无源测试（Passive Test ） 26 ~ 7 7 方向图（Radiation Pattern ） 18 8 天线匹配电路（ Antenna Matching Circuit） 19 9 天线装配图（Antenna Profile） 210 ~ 11 10 材质证明（Material Certificate ） 612 ~ 17 11 RoHS报告（RoHSTest Report ） **** 12N/AN/AN/A 13--- DC R E V . E D E S C R I P T I O N D A T E B 8 6 7 5 4 A 1 2 3 A 首 次 发 行 2 0 2 5 - 1 1 - 1 4 P A R T N A M E : X . X X X . X X ° ± 3 ° ± 0 . 5 0 ± 0 . 1 5 P A R T N O . : P A R T N O B T A n t e n n a Y J L 0 1 . 0 9 8 . 0 3 9 . 3 0 2 A 0 . 9 5 . 4 1 6 . 2 0 . 3 5 . 3 1 9 . 0 0 . 9 0 . 9 2.2 3.5 備 注 : 1 . 材 質 : 不 锈 钢 T = 0 . 3 m m 2 . 顏 色 / 表 面 處 理 : 镀 镍 （ 要 求 过 2 4 H 盐 雾 ） 3 . 尺 寸 : 帶 ＊ 為 重 點 尺 寸 . 4 . 公 差 : 未 標 注 公 差 參 照 標 准 公 差 . 天线规格 Antenna Specification Electrical Properties Frequency 2.4-2.5GHz Impedance50 Ohm Nominal V.S.W.R2.5 Max Gain 1.7 dBi RadiationOmni-directional 东莞市长安镇沙头社区木鱼路59号Tel:0769-82586086 Fax:0769-82586086 PolarizationLinear Physical Properties ConnectorNone Cable TypeNone Cable LengthNone Cable ColorNone Operating Temp.-40 ~ +85 ̊C Storage Temp / Humidity 25± 5 ̊C / <70% Agilent E5071C S Antenna Performance Test 东莞市长安镇沙头社区木鱼路59号Tel:0769-82586086 Fax:0769-82586086 S Parameter Test // BT Antenna Antenna Passive Test Z Y X 东莞市长安镇沙头社区木鱼路59号Tel:0769-82586086 Fax:0769-82586086 Y X Z Passive Test For BT Antenna(2.4G) Freq (MHz) Effi (%) Effi (dB) Gain (dBi) 2400 47.0-3.31.6 2410 47.1-3.31.7 2420 45.8-3.41.4 东莞市长安镇沙头社区木鱼路59号Tel:0769-82586086 Fax:0769-82586086 2430 45.1-3.51.5 2440 44.5-3.51.3 2450 44.5-3.51.5 2460 44.7-3.51.2 2470 45.0-3.51.5 2480 42.9-3.71.3 2490 42.8-3.71.2 2500 43.3-3.60.7 Radiation Pattern For BT Antenna(2450MHz) 东莞市长安镇沙头社区木鱼路59号Tel:0769-82586086 Fax:0769-82586086 BT Antenna Matching Circuit 东莞市长安镇沙头社区木鱼路59号Tel:0769-82586086 Fax:0769-82586086 Device 东莞市长安镇沙头社区木鱼路59号Tel:0769-82586086 Fax:0769-82586086 BT Antenna BT Antenna 东莞市长安镇沙头社区木鱼路59号Tel:0769-82586086 Fax:0769-82586086

Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No. ...................: FCC ID. ......................................... : CTA26041403501 2AL8A-QWA2250KT Compiled by ( position+printed name+signature) : File administrators Zoey Cao Supervised by ( position+printed name+signature) : Project Engineer Ace Chai Approved by ( position+printed name+signature) : RF Manager Eric Wang Date of issue ...................................: 04 June 2026 Testing Laboratory Name .............: Shenzhen CTA Testing Technology Co., Ltd. Address ..........................................: Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Applicant’s name...........................: Beijing Siemens Cerberus Electronics Ltd. Address ...........................................: 1, Fengzhi East Road, Xibeiwang, Haidian District 100094 BEIJING, China Test specification ......................... : Standard ..........................................: FCC Part 15.247 Shenzhen CTA Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTA Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTA Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Equipment description ................ : Door/window sensor Thread Trade Mark ......................................: Siemens Manufacturer ...................................: Siemens Switzerland Ltd. Model/Type reference .....................: QWA2250KT Listed Models ..................................: N/A Modulation ......................................: OQPSK Frequency .......................................: From 2405MHz to 2480MHz Ratings ............................................: Input: 3V 2xCR2032 Result ..............................................: PASS Report No.: CTA26041403501 Page 2 of 54 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn T E S T R E P O R T Equipment under Test : Door/window sensor Thread Model /Type : QWA2250KT Listed Models : N/A Model difference : N/A Applicant : Beijing Siemens Cerberus Electronics Ltd. Address : 1, Fengzhi East Road, Xibeiwang, Haidian District 100094 BEIJING, China Manufacturer : Siemens Switzerland Ltd. Address : Theilerstrasse 1a CH-6300 Zug / Switzerland Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: CTA26041403501 Page 3 of 54 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn Contents 1 TEST STANDARDS ...................................................................................................................................... 4 2 SUMMARY .................................................................................................................................................... 5 2.1 General Remarks ............................................................................................................................ 5 2.2 Product Description* ....................................................................................................................... 5 2.3 Equipment Under Test .................................................................................................................... 5 2.4 Short description of the Equipment under Test (EUT) .................................................................... 5 2.5 EUT configuration ........................................................................................................................... 5 2.6 EUT operation mode ....................................................................................................................... 6 2.7 Block Diagram of Test Setup .......................................................................................................... 6 2.8 Related Submittal(s) / Grant (s) ...................................................................................................... 6 2.9 Modifications ................................................................................................................................... 6 3 TEST ENVIRONMENT ................................................................................................................................. 7 3.1 Address of the test laboratory ......................................................................................................... 7 3.2 Test Facility ..................................................................................................................................... 7 3.3 Environmental conditions ................................................................................................................ 7 3.4 Summary of measurement results .................................................................................................. 8 3.5 Statement of the measurement uncertainty ...........................................…

Text truncated - open the document above for the full version.