2ADWTCCS01Capacitor Can Sensor

CONFIDENTIAL

3505 Francis Circle Alpharetta, GA 30004 PH: 770-740-0717 www.ustech-lab.com SDoC Attestation Letter Date: January 29, 2021 Subject: SDoC Attestation Letter: FCC ID: 2ADWTCCS01 The following equipment meets FCC Part 15 SDoC Requirements for digital device: Responsible Party: Southern States, LLC 30 Georgia Avenue Hampton, GA 30228 Contact: Tan Tran Phone: 770-519-3080 Email: [email protected] Equipment: Cap Can Sensor Sincerely, By: __________________________ ___Sandi McEnery__- Agent (Signature/Title) (Print name)

3505 Francis Circle Alpharetta, GA 30004 PH: 770-740-0717 www.ustech-lab.com Request for Confidentiality Date: January 29, 2021 Subject: Confidentiality Request for: FCC ID: 2ADWTCCS01 Pursuant to FCC 47 CRF 0.457(d) and 0.459, and DA04-1705, Dated June 15, 2004, the applicant requests that a part of the subject FCC application be held confidential. Type of Confidentiality Requested Exhibit Short Term Permanent Block Diagrams Short Term Permanent Operation Description/Theory of Operation Short Term Permanent Schematics Short Term – 180 days Permanent Internal Photos Short Term – 180 days Permanent External Photos Short Term – 180 days Permanent Test Setup Photos Short Term – 180 days Permanent User Manual Southern States LLC. 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. The applicant requests the exhibits listed above be withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Sincerely, By: __________________________ ___Sandi McEnery__- Agent (Signature/Title) (Print name)

US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 1 of 7 EXTERNAL PHOTOGRAPHS Figure 1. Top of EUT US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 2 of 7 Figure 2. Bottom of EUT US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 3 of 7 Figure 3. Left Side of EUT US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 4 of 7 Figure 4. Right Side of EUT US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 5 of 7 Figure 5. Front of EUT US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 6 of 7 Figure 6. Back of EUT US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 7 of 7 Figure 7. Label Location FCC ID Label Goes Here

US Tech Test Report: FCC Part 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States, LLC Model: Cap Can Sensor SAMPLE LABEL 1” 2” Sample Label – To be Placed on Top of EUT (see External Photo Exhibit) FCC ID: 2ADWTCCS01 THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBEJECT 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 OPERATON.

US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 1 of 7 INTERNAL PHOTOGRAPHS Figure 1. PCB Mounted in Enclosure US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 2 of 7 Figure 2. Enclosure - PCB Removed US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 3 of 7 Figure 3. PCB – Top US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 4 of 7 Figure 4. PCB – Bottom US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 5 of 7 Figure 5. BLE Radio Circuit Antenna RF port identified by the RED arrow above. US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 6 of 7 Figure 6. Patch Antenna Placement The antenna has adhesive on it and is placed on the window of the enclosure. See the red arrow above for the location. See image below for the image of the antenna on the window opening. US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 7 of 7 Figure 7. Antenna Placement The antenna is placed on the window opening to allow for unobstructed wireless communication.

US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States, LLC Model: Cap Can Sensor Page 1 of 1 Maximum Permissible Exposure to RF (MPE) CFR 15.247 (i), CFR 1.1310 (e) The maximum exposure level to the public from the RF power of the EUT shall not exceed a power density, S as per the respective limits in Table 1 below, at a distance, d, of 5 cm (Mobile condition) from the EUT. TABLE 1—LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *100 30 1.34-30 824/f 2.19/f *180/f 2 30 30-300 27.5 0.073 0.2 30 300-1,500 f/1500 30 1,500-100,000 1.0 30 f = frequency in MHz * = Plane-wave equivalent power density Therefore, for: MPE for 2400.00 MHz – 2483.50 MHz: Limit: 1.0 mW/cm 2 Peak Power (dBm) = 3.5 dBm Peak Power (Watts) = 0.023 W Gain of Transmit Antenna = +2.8 dB i = 1.91 numeric d = Distance = 20 cm = 0.2 m S = (PG/ 4d 2 ) = EIRP/4A = 0.023 (1.91)/4*π*0.2*0.2 = 0.0440/0.5027 = 0.0875 W/m 2 = (0.0875 W/m 2 ) (1m 2 /W) (0.1 mW/cm 2 ) = 0.00875 mW/cm 2 which is << less than S = 1.0 mW/cm 2 All calculations performed by: Test Engineer: ___George Yang___ Date: January 29, 2021 Signature:____________________

Page 1 of 46 Application for Part 2, Subpart J, Paragraph 2.907 Equipment Authorization of Certification for an Intentional Radiator per Part 15, Subpart C, paragraphs 15.207, 15.209 and 15.247 for the Southern States, LLC Model: Cap Can Sensor FCC ID: 2ADWTCCS01 UST Project: 20-0359 Issue Date: January 29, 2021 Total Pages:46 3505 Francis Circle Alpharetta, GA 30004 PH: 770-740-0717 Fax: 770-740-1508 www.ustech-lab.com Page 2 of 46 I certify that I am authorized to sign for the Test Agency and that all of the statements in this report and in the Exhibits attached hereto are true and correct to the best of my knowledge and belief: US TECH (Agent Responsible For Test): By: Alan Ghasiani Name: Title: Compliance Engineer – President Date: January 29, 2021 This report shall not be reproduced except in full. This report may be copied in part only with the prior written approval of US Tech. The results contained in this report are subject to the adequacy and representative character of the sample provided. This report must not be used to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the Federal Government. 3505 Francis Circle Alpharetta, GA 30004 PH : 770-740-0717 Fax : 770-740-1508 www.ustech-lab.com US Tech Test Report: FCC Part 15 Certification FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 3 of 46 MEASUREMENT TECHNICAL REPORT COMPANY NAME: Southern States, LLC. ADDRESS: 30 Georgia Avenue Hampton, GA 30228 USA MODEL: Cap Can Sensor FCC ID: 2ADWTCCS01 DATE: January 29, 2021 This report concerns (check one): ☒ Original ☐ Class II Change Equipment type: 2.4 GHz Radio Transceiver Technical: IEEE 802.15.4 Technology: ZigBee Frequency of Operation: 2405-2480 MHz Output Power: +3.6 dBm Type of Modulation: O-QPSK Data/Bit Rate: 2 Mbps Antenna Gain: +2.8 dBi Software used to program EUT: Proprietary test software EUT firmware: N/A Power setting: +4.0 dBm Report prepared by: US Tech 3505 Francis Circle Alpharetta, GA30004 US Tech Test Report: FCC Part 15 Certification FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC. Model: Cap Can Sensor Page 4 of 46 Table of Contents Title Page 1 General Information ............................................................................................... 7 1.1 Purpose of this Report ....................................................................................... 7 1.2 Characterization of Test Sample ........................................................................ 7 1.3 Product Description ............................................................................................ 7 1.4 Configuration of Tested System ......................................................................... 8 1.5 Test Facility ........................................................................................................ 8 1.6 Related Submittal(s)/Grant(s)............................................................................. 8 2 Tests and Measurements .................................................................................... 11 2.1 Test Equipment ................................................................................................ 11 2.2 Modifications to EUT Hardware ........................................................................ 11 2.3 Number of Measurements for Intentional Radiators (CFR 15.31(m)) ............... 12 2.4 Frequency Range of Radiated Measurements (CFR 15.33) ............................ 12 2.4.1 Intentional Radiator ....................................................................................... 12 2.4.2 Unintentional Radiator ................................................................................... 12 2.5 Measurement Detector Function and Bandwidth (CFR 15.35) ......................... 13 2.5.1 Detector Function and Associated Bandwidth ............................................... 13 2.5.2 Corresponding Peak and Average Requirements ......................................... 13 2.5.3 Pulsed Transmitter Averaging ....................................................................... 13 2.6 Transmitter Duty Cycle (Part 15.35(c)) ............................................................. 14 2.7 Restricted Bands of Operation (Part 15.205) ................................................... 15 2.8 EUT Antenna Requirements (CFR 15.203) ...................................................... 15 2.9 Maximum Peak Conducted Output Power (CFR 15.247(b)(3)) ........................ 16 2.10 Power Spectral Density (CFR 15.247(e), RSS-247 (5.2(b))) ........................ 20 2.11 Antenna Conducted Intentional and Spurious Emissions (CFR 15.209, 15.247(d)) (RSS-247 (5.5), RSS-Gen 8.9) ................................................................. 21 2.12 Intentional Radiator, Radiated Emissions (CFR 15.209, 15.247(d)) ............. 31 2.13 Band Edge Measurements – (CFR 15.247(d)) ............................................. 34 2.14 DTS Bandwidth (CFR 15.247(a)(2)) .............................................................. 37 2.15 Intentional Radiator Power Line Conducted Emissions (CFR 15.207) .......... 41 2.16 Unintentional Radiator and Intentional Radiator, Radiated Emissions (CFR 15.109, 15.209) ......................................................................................................... 42 2.17 Measurement Uncertainty ............................................................................. 46 2.17.1 Conducted Emissions Measurement Uncertainty ........................................ 46 2.17.2 Radiated Emissions Measurement Uncertainty ........................................... 46 3 Test Results ........................................................................................................ 46 US Tech Test Report: FCC Part 15 Certification FCC ID: 2ADWTCCS01 Test Report Number…

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US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC Model: Cap Can Sensor Page 1 of 6 TEST CONFIGURATION PHOTOGRAPHS Figure 1. Radiated Emissions EUT Test Setup – Worst Case Position US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC Model: Cap Can Sensor Page 2 of 6 Figure 2. Radiated Emissions Test Setup, 150 kHz to 30 MHz US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC Model: Cap Can Sensor Page 3 of 6 Figure 3. Radiated Emissions Test Setup, 30 MHz to 200 MHz US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC Model: Cap Can Sensor Page 4 of 6 Figure 4. Radiated Emissions Test Setup, 200 MHz to 1 GHz US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC Model: Cap Can Sensor Page 5 of 6 Figure 5. Radiated Emission Test Setup, above 1 GHz US Tech Test Report: FCC Part 15 Certification 15.247 FCC ID: 2ADWTCCS01 Test Report Number: 20-0359 Issue Date: January 29, 2021 Customer: Southern States LLC Model: Cap Can Sensor Page 6 of 6 Figure 6. Conducted Emissions Test Setup