R46/2012-A-NL1-20.06

OIML Member State The Netherlands

Number R46/2012-A-NL1-20.06 Project number 2509324 Page 1 of 2

Issuing authority Person responsible:

NMi Certin B.V.

M. Boudewijns

Applicant and Manufacturer

Holley Technology Ltd.

No.181 Wuchang Avenue

Yuhang District

Hangzhou

P.R. China

Identification of the certified type

A measuring instrument Type: DTSD545

See page 2 and further

Characteristics

This OIML Certificate is issued under scheme A

This Certificate attests the conformity of the above identified type (represented by the sample(s) identified in the OIML Type Evaluation Report) with the requirements of the following Recommendation of the International Organization of Legal Metrology (OIML):

R 46-1/-2 (2012) "Active electrical energy meters"

Accuracy class B

This Certificate relates only to the metrological and technical characteristics of the type of measuring instrument covered by the relevant OIML International Recommendation identified above. This Certificate does not bestow any form of legal international approval.

Important note: Apart from the mention of the Certificate's reference number and the name of the OIML Member State in which the Certificate was issued, partial quotation of the Certificate and of the associated OIML Type Evaluation Report(s) is not permitted, although either may be reproduced in full.

Issuing Authority

NMi Certin B.V., OIML Issuing Authority NL1 3 December 2020

Certification Board

This document is issued under the provision that no liability is accepted and that the applicant shall indemnify third-party liability.

Number R46/2012-A-NL1-20.06 Project number 2509324 Page 2 of 2

The conformity was established by the results of tests and examinations provided in the associated reports:

• No. NMi-2509324-01 dated 23 November 2020 that includes 61 pages;

• No. NMi-2509324-02 dated 23 November 2020 that includes 13 pages.

Characteristics of the measuring instrument

In Table 1 the general characteristics of the measuring instrument are presented.