WIGDT-870YSHigh performance thermal imager with Bluetooth

FCC STATEMENT 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 device must not be co-located or operating in conjunction with any other antenna or transmitter. 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. Portable devices: This device complies with FCC’ s radiation exposure limits set forth for an uncontrolled environment WARNING: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’ s authority to operate the equipment. This device must not be collocated or operating in conjunction with any other antenna or transmitter.

SCS-F18: Project and Product Certification Representative Authorization Letter Page 1 of 2 Rev 6.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Project and Product Certification Representative Authorization Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Revised wording (obsolete) 1.0 2.0 Sept–25-2007 Updated company template (obsolete) 2.0 3.0 Jan-31-2012 Updated letter information (obsolete) 3.0 4.0 May-23-2014 Added FCC ID field (obsolete) 4.0 5.0 Sep-16-2014 Updated company name & logo (current) 5.0 6.0 Jun-27-2018 SCS-F18: Project and Product Certification Representative Authorization Letter Page 2 of 2 Rev 6.0 Shenzhen Everbest Machinery Industry Co., Ltd. 2020.6.29 To: BVCPS, INC. 775 Montague Expressway, Milpitas, CA 95035 USA Dear Sir/Madam, Re: Product Certification Representative Authorization Letter We, _____ Shenzhen Everbest Machinery Industry Co., Ltd.____ hereby authorize Bureau Veritas Consumer Product Services, Inc. to act as a Certification Body for certifying for the following project(s): FCC ID: WIGDT-870YS Product Description: High performance thermal imager with Bluetooth Model: DT-870YS, DT-982Y, DT-980Y, DT-9875Y, DT-9897Y, DT-9896Y, DT-9895Y, DT-988Y, DT-9887Y, DT-983Y, DT-984Y, DT-870Y, DT-9875HY Sincerely, Client’s signature Client’s name: Mr Aiguo Deng Title : quality manager Contact information / address : 19th Building, 5th Region, Baiwangxin Industrial Park, SongBai Rd., Baimang, Xili, Nanshan, Shenzhen China

SCS-F19: Confidentiality Request Letter Page 1 of 2 Rev 6.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Confidentiality Request Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Adding CFR 2.459 (obsolete) 1.0 2.0 August – 11 - 2008 Updated company template & Added text box (obsolete) 2.0 3.0 Jan-31-2012 Added IC confidentiality letter form (obsolete) 3.0 4.0 March-26-2015 Corrections to STC form. Added reference to KDB (obsolete) 4.0 5.0 Nov-19-2015 Updated company logo (current) 5.0 6.0 Jun-26-2019 SCS-F19: Confidentiality Request Letter Page 2 of 2 Rev 6.0 Shenzhen Everbest Machinery Industry Co., Ltd. 2020.6.29 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: WIGDT-870YS Pursuant to sections 0.457 and 0.459 of CFR 47, we respectfully request permanent confidential treatment of the following Exhibits accompanying this application as: - Block Diagram - Schematics - Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Client’s signature Client’s name: Mr Aiguo Deng Title : quality manager Contact information / address : 19th Building, 5th Region, Baiwangxin Industrial Park, SongBai Rd., Baimang, Xili, Nanshan, Shenzhen China

Shenzhen Everbest Machinery Industry Co., Ltd. Declaration of Identical Product Name of manufacturer: Shenzhen Everbest Machinery Industry Co., Ltd. Address: 19th Building, 5th Region, Baiwangxin Industrial Park, SongBai Rd., Baimang, Xili, Nanshan, Shenzhen China City: Shenzhen Country: China declares that: Product description: High performance thermal imager with Bluetooth Type designation(s): DT-982Y, DT-980Y, DT-9875Y, DT-9897Y, DT-9896Y, DT-9895Y, DT-988Y, DT-9887Y, DT-983Y, DT-984Y, DT-870Y, DT-9875HY Trademark: CEM Family name is technically identical to: Product description: High performance thermal imager with Bluetooth Type designation: DT-870YS Trademark: CEM Certificate number (if applicable) They are identical with the test model DT-870YS except the model number for marketing purpose。 Date: 2020.6.29 City: Shenzhen Name: Mr Aiguo Deng Signature

Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 1 of 6 Report Version 1 Reference No.: 200420N022 PHOTOGRAPHS OF THE EUT Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 2 of 6 Report Version 1 Reference No.: 200420N022 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 3 of 6 Report Version 1 Reference No.: 200420N022 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 4 of 6 Report Version 1 Reference No.: 200420N022 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 5 of 6 Report Version 1 Reference No.: 200420N022 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 6 of 6 Report Version 1 Reference No.: 200420N022

Label and Location

Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 1 of 7 Report Version 1 Reference No.: 200420N022 PHOTOGRAPHS OF THE EUT Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 2 of 7 Report Version 1 Reference No.: 200420N022 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 3 of 7 Report Version 1 Reference No.: 200420N022 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 4 of 7 Report Version 1 Reference No.: 200420N022 RF ANT Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 5 of 7 Report Version 1 Reference No.: 200420N022 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 6 of 7 Report Version 1 Reference No.: 200420N022 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 7 of 7 Report Version 1 Reference No.: 200420N022

Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 1 of 6 Report Version 1 Test Report No.: FM200420N022 RF EXPOSURE REPORT Applicant Shenzhen Everbest Machinery Industry Co., Ltd. Address 19th Building, 5th Region, Baiwangxin Industrial Park, SongBai Rd., Baimang, Xili, Nanshan, Shenzhen China Manufacturer or Supplier Shenzhen Everbest Machinery Industry Co., Ltd. Address 19th Building, 5th Region, Baiwangxin Industrial Park, SongBai Rd., Baimang, Xili, Nanshan, Shenzhen China Product High performance thermal imager with Bluetooth Brand Name CEM Model DT-870YS Additional Models & Model Difference DT-982Y, DT-980Y, DT-9875Y, DT-9897Y, DT-9896Y, DT-9895Y, DT-988Y, DT-9887Y, DT-983Y, DT-984Y, DT-870Y, DT-9875HY Date of tests Apr. 20, 2020 ~ Jun. 05, 2020 FCC Part 2 (Section 2.1093) KDB 447498 D01 IEEE C95.1 CONCLUSION: The submitted sample was found to COMPLY with the test requirement Tested by Breeze Jiang Project Engineer / EMC Department Approved by Glyn He Assistant Manager / EMC Department Date: Jun. 29, 2020 This report is governed by, and incorporates by reference, CPS Conditions of Service as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our-business/cps/about-us/terms-conditions/and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute you unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 2 of 6 Report Version 1 Test Report No.: FM200420N022 Table of Contents RELEASE CONTROL RECORD ................................................................................ 3 1. CERTIFICATION .............................................................................................. 4 2. RF EXPOSURE DEFINE ................................................................................. 5 3. CLASSIFICATION ........................................................................................... 5 4. SAR TEST EXCLUSION THRESHOLDS ........................................................ 6 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 3 of 6 Report Version 1 Test Report No.: FM200420N022 RELEASE CONTROL RECORD ISSUE NO. REASON FOR CHANGE DATE ISSUED FM200420N022 Original release Jun. 29, 2020 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 4 of 6 Report Version 1 Test Report No.: FM200420N022 1. CERTIFICATION FCC ID: WIGDT-870YS PRODUCT: High performance thermal imager with Bluetooth BRAND NAME: CEM MODEL NO.: DT-870YS ADDITIONAL NO.: DT-982Y, DT-980Y, DT-9875Y, DT-9897Y, DT-9896Y, DT-9895Y, DT-988Y, DT-9887Y, DT-983Y, DT-984Y, DT-870Y, DT-9875HY TEST SAMPLE: Engineering Sample APPLICANT: Shenzhen Everbest Machinery Industry Co., Ltd. STANDARDS: FCC Part 2 (Section 2.1093) KDB 447498 D01 IEEE C95.1 Note: Additional models (see above table) are identical with the test model DT-870YS except the model number for marketing purpose Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 5 of 6 Report Version 1 Test Report No.: FM200420N022 2. RF EXPOSURE DEFINE The corresponding SAR Exclusion Threshold condition, listed below: 1) The 1-g and 10-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 and ≤ 7.5 for 10-g extremity SAR,16 where   f(GHz) is the RF channel transmit frequency in GHz   Power and distance are rounded to the nearest mW and mm before calculation   The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is…

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Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 1 of 40 Report Version 1 Test Report No.: RF200420N022 TEST REPORT Applicant Shenzhen Everbest Machinery Industry Co., Ltd. Address 19th Building, 5th Region, Baiwangxin Industrial Park, SongBai Rd., Baimang, Xili, Nanshan, Shenzhen China Manufacturer or Supplier Shenzhen Everbest Machinery Industry Co., Ltd. Address 19th Building, 5th Region, Baiwangxin Industrial Park, SongBai Rd., Baimang, Xili, Nanshan, Shenzhen China Product High performance thermal imager with Bluetooth Brand Name CEM Model DT-870YS Additional Models & Model Difference DT-982Y, DT-980Y, DT-9875Y, DT-9897Y, DT-9896Y, DT-9895Y, DT-988Y, DT-9887Y, DT-983Y, DT-984Y, DT-870Y, DT-9875HY, see items 3.1 Date of tests Apr. 20, 2020 ~ Jun. 05, 2020 the tests have been carried out according to the requirements of the following standard: FCC Part 15, Subpart C, Section 15.247 CONCLUSION: The submitted sample was found to COMPLY with the test requirement Tested by Breeze Jiang Project Engineer / EMC Department Approved by Glyn He Assistant Manager / EMC Department Date: Jun. 29, 2020 This report is governed by, and incorporates by reference, CPS Conditions of Service as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our-business/cps/about-us/terms-conditions/and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute you unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 2 of 40 Report Version 1 Test Report No.: RF200420N022 TABLE OF CONTENTS RELEASE CONTROL RECORD ............................................................................................................ 4 1 SUMMARY OF TEST RESULTS .................................................................................................... 5 2 MEASUREMENT UNCERTAINTY ................................................................................................. 5 3 GENERAL INFORMATION ............................................................................................................ 6 3.1 GENERAL DESCRIPTION OF EUT ............................................................................................. 6 3.2 DESCRIPTION OF TEST MODES ............................................................................................... 7 3.2.1. CONFIGURATION OF SYSTEM UNDER TEST ............................................................... 7 3.2.2. TEST MODE APPLICABILITY AND TESTED CHANNEL DETAIL .................................... 7 3.3 GENERAL DESCRIPTION OF APPLIED STANDARDS ............................................................ 10 3.4 DESCRIPTION OF SUPPORT UNITS ....................................................................................... 10 4 TEST TYPES AND RESULTS .......................................................................................................11 4.1 CONDUCTED EMISSION MEASUREMENT .............................................................................. 11 4.1.1 LIMITS OF CONDUCTED EMISSION MEASUREMENT ................................................ 11 4.1.2 TEST INSTRUMENTS ...................................................................................................... 11 4.1.3 TEST PROCEDURES ..................................................................................................... 12 4.1.4 DEVIATION FROM TEST STANDARD ........................................................................... 12 4.1.5 TEST SETUP ................................................................................................................... 13 4.1.6 EUT OPERATING CONDITIONS .................................................................................... 13 4.1.7 TEST RESULTS .............................................................................................................. 14 4.2 RADIATED EMISSION MEASUREMENT .................................................................................. 16 4.2.1 LIMITS OF RADIATED EMISSION MEASUREMENT .................................................... 16 4.2.2 TEST INSTRUMENTS ..................................................................................................... 17 4.2.3 TEST PROCEDURES ..................................................................................................... 18 4.2.4 DEVIATION FROM TEST STANDARD ...............................................…

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Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 1 of 3 Report Version 1 Reference No.: 200420N022 SET-UP FOR CONDUCTED EMISSION TEST Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 2 of 3 Report Version 1 Reference No.: 200420N022 SET-UP FOR RADIATED EMISSION TEST Frequency Range< 30MHz~1GHz > Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 3 of 3 Report Version 1 Reference No.: 200420N022 Frequency Range< Above 1GHz >