FCC ID: THCOS-1000CW OS-1000CW

complies This device may not cause harmful interference, and (2) this device must accept any interference may cause undesired with Part 15 of the FCC Rules. Operation is subject operation to the following two conditions:

(1) this device received, including interference that Changes s authority or modifications the equipment to operate to this unit not expressly approved by the party responsible for compliance user'

could void the and found to comply with the limits for a Class B digital device, pursuant to Part 15 to provide and can radiate radio frequency energy and, protection reasonable against harmful interference in a residential may cause harmful interference to radio communications. if not installed However, and used in there is no s equipment installation. If thi by turning measures:

the equipment does cause harmful interference to to try off and on, the user is encouraged are designed This equipment generates, uses with the instructions, that interference reception, will not occur in a particular which can be determined NOTE: This equipment has been tested of the FCC Rules. These limits installation. accordance guarantee radio or television to correct

-- Reorient

-- Increase

-- Connect

-- Consult the interference or relocate the receiving the separation between the equipment the dealer antenna. by one or more of the following into an outlet or an experienced the equipment from that to which the receiver on a ccuit for help radio/TV technician and receiver different is connected. This device and its antenna(s) must not be co-located or operation in conjunction with any other antenna or transmitter. Exposure Radiation Statement The equipment complies with FCC r operation of d respected evice a distance 15cm surrounding the device and 20cm above the top surface of the device must be adiation exposure limits set forth for an uncontrolled environment. During the

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021/6/21 Pursuant to Paragraphs 0.457 and 0.459 of the Commissions Rules (47 C.F.R.) and Section 552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products:

FCC ID THCOS-1000CW Model name OS-1000CW For the product stated above, we request that the following information be held confidential;

Exhibits Short-Term Confidentiality Long-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos Users Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title Park Kyutae/ Principal Research Engineer Company:

Address:

Phone:

Fax:

E-Mail:

D&T Inc. 26-121, Gajeongbuk-ro, Yuseong-gu, Daejeon, South Korea

+82-42-360-8000

+82-42-360-0830 ktpark@dntinc.co.kr

D&T Inc. 26-121, Gajeongbuk-ro, Yuseong-gu, Daejeon, South Korea Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern:

2021/6/21 We, D&T Inc. the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: THCOS-

1000CW including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Park Kyutae/ Principal Research Engineer D&T Inc. 26-121, Gajeongbuk-ro, Yuseong-gu, Daejeon, South Korea

+82-42-360-8000

+82-42-360-0830 ktpark@dntinc.co.kr Sincerely, Name/Title Company:

Address:

Phone:

Fax:

E-Mail: