FCC ID: 2A82N-DEGRIITHM Degrii Smart Thermostat

Antenna Test Report Contents:

1. Antenna Profile 2. Antenna Performance Test 3. Antenna Passive Test

Tester : Feng Boyuan Approval : Li Hongyu Date : 2022 / 10 / 25 2. Antenna Performance Test S Parameter Test Phi=0 Theta=90 3D model Passive Test For BLE Antenna(2.4G) Frequency(MHZ) Efficiency(%) Efficiency(db) Peak Gain(dbi) 2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500 53%

54%

56%

61%

61%

57%

57%

60%

63%

60%

56%

-2.75

-2.67

-2.50

-2.18

-2.16

-2.41

-2.45

-2.19

-2.04

-2.21

-2.54 3.09 3.16 3.33 3.60 3.60 3.30 3.24 3.78 3.97 3.80 3.33

Confidential Information SPEEDTECHNOLOGY SPEED Communication Technology Limited Approval sheet of ZHONGQING Antenna Customer/Project MARS Frequency Band SCT P/N Date Material Code Version 2022-10-9 F-0G-C6-0002-000-00 WIFI T16 RF ERICGUO Checked by ME ERICGUO SPEED Design by RF ME QC TAOZHUTAORemark Customer Date Confirmed by Remark RF ME www.speed-hz.com SPEED has possession of proprietary information provided in this presentation and this proprietary information shall be kept in strict confidence and not disclosed to any person or firm without the prior written consent of SPEED Communication Technology. Page 1 Confidential Information Index 1. Indication 2.Measurement Data 2.1 WIFI Antenna 2.2 Gain .. 3. Appearance drawing. 4. Suggestions and Conclusion. 3 4 4 7 9 10 SPEED has possession of proprietary information provided in this presentation and this proprietary information shall be kept in strict confidence and not disclosed to any person or firm without the prior written consent of SPEED Communication Technology. www.speed-hz.com Page 2 Confidential Information Description of the MARS antenna information 1 2 3 4 5 6 7 8 9 10 11 12 13 Antenna shape Antenna type Material Frequency Peak Gain Efficiency Impedance Wire length Color Edition Other attributes Manufacturer Manufacturer model HZ DBI

MM FPC+WIRE+IPAX 1 WIFI MARS(NBA3001)

:WiFi2.4G 2400M-2500M 4 35

:50 47 Black T16 SPEED NO SPEED has possession of proprietary information provided in this presentation and this proprietary information shall be kept in strict confidence and not disclosed to any person or firm without the prior written consent of SPEED Communication Technology. www.speed-hz.com Page 4 Confidential Information 2. Measurement Data 2.1 WIFI Antenna VSWR measurements (S11) were performed using Agilent 5071C Network Analyzer. The testing was performed in free space. This section summarizes the electrical performance structure drawings confirmed by the customers, 2400MHZ ~ 2500MHZ WIFI antenna. Figure 3: WIFI RETURN LOSS www.speed-hz.com SPEED has possession of proprietary information provided in this presentation and this proprietary information shall be kept in strict confidence and not disclosed to any person or firm without the prior written consent of SPEED Communication Technology. Page 5 Confidential Information Figure 4: WIFI SWR SPEED has possession of proprietary information provided in this presentation and this proprietary information shall be kept in strict confidence and not disclosed to any person or firm without the prior written consent of SPEED Communication Technology. www.speed-hz.com Page 6 2.2 Gain Confidential Information Frequency(MHZ) 2400 2410 2420 2430 2440 2450 2460 2470 2480 2490 2500 2.3 Directional Diagram Efficiency(db) Efficiency(%) Peak Gaindbi 44.9 42.8 40.4 40.3 42.7 43.4 41.7 41.5 40.4 39.8 38.5

-3.48

-3.68

-3.93

-3.94

-3.7

-3.63

-3.8

-3.82

-3.94

-4

-4.14 4.88 4.68 4.43 4.42 4.66 4.73 4.56 4.54 4.42 4.36 4.22 Figure 5: Theta=90 www.speed-hz.com SPEED has possession of proprietary information provided in this presentation and this proprietary information shall be kept in strict confidence and not disclosed to any person or firm without the prior written consent of SPEED Communication Technology. Page 7 Confidential Information Figure 6: Phi=90 Figure 7: Phi=0 Figure 7: 3d model www.speed-hz.com SPEED has possession of proprietary information provided in this presentation and this proprietary information shall be kept in strict confidence and not disclosed to any person or firm without the prior written consent of SPEED Communication Technology. Page 8 Confidential Information 4. Suggestions and Conclusion This report summarizes the electrical performance structure drawings confirmed by the customers of MARS project. Speed is looking forward to getting your approval. Thanks for your cooperation. www.speed-hz.com SPEED has possession of proprietary information provided in this presentation and this proprietary information shall be kept in strict confidence and not disclosed to any person or firm without the prior written consent of SPEED Communication Technology. Page 10

Date: 2022-11-14____ Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Confidentiality Request for FCC ID: 2A82N-DEGRIITHM Pursuant to FCC 47 CRF 0.457(d), the applicant requests that a part of the subject FCC/IC application be held confidential. Type of Confidentiality Requested Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Permanent n/a Permanent Permanent Permanent Permanent Permanent Permanent Permanent Exhibit Block Diagrams External Photo Internal Photos ***

Operation Description/Theory of Operation Schematics Test Setup***

Tune-Up Procedure Users Manual***

Part List/ Antenna Construction Degrii, Inc. has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality:

The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public.

(*** Exceptional case for Permanent Confidentiality for these Exhibits by PAG only) Short-Term Confidentiality:

The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of specify number of days not to exceed 180 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify TUV Rheinland in the event information regarding the product or the product is made available to the public. TUV Rheinland will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705. Sincerely, By:

(Signature/Title) Mr. Jason Sun_/ Director of Quality

(Print name) Email: eric.lee@ebuynow.com MS-0044715 Page 1 of 1 Revision 1

The EUT is Smart Thermostat which supported IEEE 802.11 b/g/n 2.4GHz Wi-Fi and Bluetooth Low Energy. The Mars Intelligent Thermostat is an intelligent HVAC device controller Device, local interaction contains three capacitive touch keys And LED dot matrix screen, remote interaction through mobile APP real now. The Mars smart thermostat is based on user-set information and data Ground sensor data, combined with local and cloud control algorithms, Intelligent adjustment of home decoration HVAC system working mode, in order to real Now the temperature, humidity, air circulation in the living environment Intelligent adjustment to achieve a balance between comfort and energy saving. SPECIFICATION:

Input: 24V~ 60Hz 0.1A max Dimensions: 145mm x 83mm x 22mm Operating Temperature: 32F~130F Operating Humidity: 5%~95%RH (non-condensing) Storage Temperature: -22~140F Storage Humidity: 5%~95%RH (non-condensing) Technical Specification of Wi-Fi 802.11 b/g/n (WBR1) Operating Frequency Type of Modulation Data Rate Channel Number Channel Separation Number of Antenna:

Antenna type Antenna Gain:

2412 - 2462 MHz for 802.11b/g/n(HT20) DSSS(DBPSK/DQPSK/CCK) OFDM(BPSK/QPSK/16QAM/64QAM) 1/2/5.5/11 Mbps for 802.11b 6/9/12/18/24/36/48/54 Mbps for 802.11g MCS0 ~ MCS7 for 802.11n 11 channels for 802.11b/g/n(HT20) 5 MHz 1 FPC antenna 4.88dBi Technical Specification of Bluetooth Low Energy (WBR1) Operating Frequency Data rate Channel Number Channel separation Modulation Number of Antenna Antenna Type Antenna Gain 2402 2480 MHz 1Mbps 40 channels 2MHz GFSK 1 FPC antenna 4.88dBi Technical Specification of Bluetooth Low Energy (ESP32) Operating Frequency Data rate Channel Number Channel separation Modulation Number of Antenna Antenna Type Antenna Gain 2402 2480 MHz 1Mbps 40 channels 2MHz GFSK 1 PCB Layout antenna 3.97dBi

Confidential Information 1.Indication This report summarizes the electrical performance structure drawings confirmed by the customers of MARS project.The antenna is an assembly Inside the Temperature and humidity machine (see Figure1). The gain and efficiency of the antenna was measured in the Blue test chamber. The chamber provides less than 40 dB reflectivity from 600MHz through 6GHz. Figure 1: Proposed Antenna Figure 2: WIFI www.speed-hz.com SPEED has possession of proprietary information provided in this presentation and this proprietary information shall be kept in strict confidence and not disclosed to any person or firm without the prior written consent of SPEED Communication Technology. Page 3