Certificate of Compliance Issued to: Sichuan Zhongce Measure Instrument Technology Co.,Ltd. Building B5, UESTC Science Park, No. 8 Wulian Road, Shuangliu District, Chengdu, Sichuan, CN This certificate confirms that representative samples of: OGTK - Laboratory-use Electrical Equipment See Addendum Page for Product Designation(s). Have been evaluated by UL in accordance with the Standard(s) indicated on this Certificate. UL 61010-1, Edition 3, Issue Date 2012-05-11, Revision Date 202411-15 Additional Information: See UL Product iQ® at https://iq.ulprospector.com for additional information. This Certificate of Compliance indicates that representative samples of the product described in the certification report have met the requirements for UL certification. It does not provide authorization to apply the UL Mark. Only the Authorization Page that references the Follow-Up Services Procedure for ongoing surveillance provides authorization to apply the UL Mark. Only those products bearing the UL Mark should be considered as being UL Certified and covered under UL’s Follow-Up Services. Look for the UL Certification Mark on the product. 1 David Piecuch UL Mark Certification Program Manager Any information and documentation involving UL Mark services are provided on behalf of UL LLC (UL) or any authorized licensee of UL. For questions, please contact UL Solutions Customer Service at https://www.ul.com/contact-us.

CERTIFICATE OF COMPLIANCE Certificate number(s): Report reference: Issue Date: This is to certify that representative samples of the product as specified on this certificate were tested according to the current UL requirements. Vital Signs Simulator Model(s): ZCE880 Any information and documentation involving UL Mark services are provided on behalf of UL LLC (UL) or any authorized licensee of UL. For questions, please contact UL Solutions Customer Service at https://www.ul.com/contact-us.