2BV6F-PV1525Solar PV Installation Tester

2 June 2026 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for 2BV6F-PV1525 Seaward Electronic Ltd (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, Anthony Barker 2 June 2026 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for 2BV6F-PV1525 Seaward Electronic Ltd (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, Anthony Barker

Attestation Statements 2 June 2026 TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for 2BV6F-PV1525 Seaward Electronic Ltd, the undersigned, hereby authorize Dranetz Technologies, Inc. dba GMC Instruments Americas to act as our designated U.S. agent for service of process, Seaward Electronic Ltd accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Dranetz Technologies, Inc. dba GMC Instruments Americas accepts the responsibility to act as designated U.S. agent for service of process. Applicant Information ： ：： ： Company Name: Seaward Electronic Ltd Contact Name: Anthony Barker Address: Bracken Hill, SW Industrial Estate, Peterlee, Co Durham, SR8 2Sw FRN: 0038433157 Telephone No: 441915863511 Email: [email protected] Signature [Anthony Barker] U.S. Agent Information: Company Name: Dranetz Technologies, Inc. dba GMC Instruments Americas Address: 191 Talmadge Road, Edison, New Jersey 08817 USA FRN: 0038506127 Contact Name: Ross Ignall Telephone No: (800) 372-6832 Email: [email protected] Signature [Ross Ignall]

2 June 2026 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR PV1525 2BV6F-PV1525 To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the Block Diagram Schematics Operational description required to be submitted with this application be permanently withheld from public review. The above documents are company proprietary information that could never get into the possession of your competition. Please contact me if there is any information you may need. Sincerely,

2 June 2026 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize James Beevers at Eurofins Electronic and Electrical UK to a ct on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Anthony Barker

2 June 2026 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Short Term Confidentiality Request For PV1525 2BV6F-PV1525 To Whom It May Concern: In accordance with sections 0.457 and 0.459 of CFR 47, Seaward Electronic Ltd requests s hort-term Confidentiality of following sections of this application for a period of 45 days after grant is issued. External photos Test Setup Photos User Manual Internal photos These documents contain detailed system and equipment descriptions and related information about the product, which Seaward Electronic Ltd considers to be proprietary, confidential, and a custom design and otherwise, would not release to the general public. Since this design is a basis from which future technological products will evolve, Seaward Electronic Ltd feels that this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give our competitors an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely,

0.11 0.09 0.075 0.06 MATERIAL MR G F DESCRIPTION ISS 1 2 E D C TITLE SOUTH WEST IND EST BRACKEN HILL DATE 3 PETERLEE 4 ELECTRONIC 5 LTD 600mm PLUS 150-600mm 75-150mm UP TO 75mm TOL DIM 6 + DIA. + 0.2 0-3mm 10mm PLUS 6-10mm 3-6mm SCALE 7 + 1.5 - 0.8 0.5 + - + - - DIA. + DIA. DIA. + + 210 x 297mm A4 B A 1 2 DO NOT SCALE 3 4 5 6 7 IF IN DOUBT ASK. CHECKEDDRAWN DRAWING No. 8 9 APPROVED 10 G F E D C SHEET 1 OF 1 8 9 10 B A MODIFIED KJ First release 1 04/06/26 1 : 1 mm PV USA Battery battery label KJ 601LA315 - MATERIAL: White permanent hi-tack vinyl with matt finish Background colour - Pantone 11C LABEL TO BE ALCOHOL RUB TEST PROOF Dimensions 38.5 x 101 mm, corner radius 3.5mm see note Made In Britain www.seaward.com IP40 Rpe0.05Ω..199Ω Uq>4VDC / In >200mA I (PV) 0.5A..25A Riso 0.05MΩ..1.0GΩ U N > 250/500/1000/1500VDC In >1mA Iclamp0.5A..400A V +10V..+1500V DC 10V..440V AC -10V..-440V DC Power 0.5kW..600kW FCC ID: 2BV6F-PV1525 Contents updated 2 15/06/26 - Contains FCC ID: 2AC7Z-ESPS3WROOM1

Location of FCC label The FCC information is placed on the label which attaches to the battery compartment cover which fits to the back of the product.

SAR Exclusion Calculation Project: C9968 Report number: C16750TR2 Date: 13 th July 2026 Customer Details Company name Seaward Electronic Ltd Address 18 Bracken Hill South West Industrial Estate Peterlee Co. Durham SR8 2SW United Kingdom Contact Mr Anthony Barker Email [email protected] Equipment Under Test: PV1525-IV (915MHz) Installation Analyser FCC ID: 2BV6F-PV1525 Operating frequency bands: BLE: 2400MHz to 2483.5MHz SRD: 902MHz to 928MHz RF Modules: Bluetooth Low Energy: ESP32-S3-WROOM-1: FCC ID: 2AC7Z- ESPS3WROOM1 SRD, 902 to 928MHz Module 13 th July 2026 Report No:C16750TR2 Page 2 of 7 SAR Exclusion Calculation - FCC The calculation is according to the FCC Knowledge Database (KDB) document KDB 447498 D01 General RF Exposure Guidance V06. Section 4.3.1 General SAR Test Exclusion Bands was applied. Section 4.3.1 a) for 100MHz to 6GHz and test separation distances ≤50mm was specifically applied where applicable. According to this section the SAR test exclusion thresholds are determined by the following: Threshold= [ 푃(푚푊) 푑(푚푚) ] . √ 푓(퐺퐻푧) Where P is the maximum power of the channel including tune-up tolerance in mW d is the minimum test separation distance in mm f is the RF channel frequency in GHz This evaluation of the threshold is compared to the threshold limit. a. Limit for 1-g head or body worn devices: threshold limit ≤3 b. Limit for 10-g extremity worn devices: threshold limit ≤7.5 Since the device is hand-held the limit b applies. Section 4.3.1 b)(1) for 100MHz to 1500MHz and test separation distances >50mm, was specifically applied where applicable. According to this section the SAR test exclusion thresholds are determined by the following: Threshold ( mW ) = [[ 푥 √ 푓 ( 퐺퐻푧 ) ] .50 ] + [ ( 푑 ( 푚푚 ) −50 ) ∙ ( 푓(푀퐻푧) 150 )] When separation distance > 50 mm and the device output power is less than the calculated result (power threshold, mW) shown in the above equation, the SAR testing exclusion is applied. where x is 3 for head or body worn devices and x is 7.5 for extremity worn devices. 13 th July 2026 Report No:C16750TR2 Page 3 of 7 Section 4.3.1 b)(2) for 1500MHz to 6GHz and test separation distances >50mm, was specifically applied where applicable. According to this section the SAR test exclusion thresholds are determined by the following: Threshold (mW)= [[ 푥 √ 푓 ( 퐺퐻푧 ) ] .50 ] + [( 푑 ( 푚푚 ) −50 ) ∙10 ] When separation distance > 50 mm and the device output power is less than the calculated result (power threshold, mW) shown in the above equation, the SAR testing exclusion is applied. The minimum test separation distance was considered to be 2.5mm for the SRD & 11.0mm for the BLE (distance from the antenna to users hand) as declared by the customer and in consultation with Section 4.2.2 Body-worn accessory exposure conditions. Short Range Device – 902MHz to 928MHz The device is a hand-held device with a declared interaction distance of 2.5mm, as such the device is to be assessed as a portable device in accordance with section 4.3.1a) of KDB 447498 D01 General RF Exposure Guidance V06. When the minimum test separation distance is <5mm a distance of 5mm is applied. For this apparatus, the calculated threshold was evaluated using a distance of 5.0mm, and the results are tabulated in the table below. The power level values taken from the results obtained in test report: C16749TR3 with antenna gain value of 4.07dBi taken from Antenova SRFC025 data sheet. Frequency (GHz) Power (mW) Dist (mm) Calculated Threshold Threshold Limit 0.915 5.68 5.0 1.09 7.5 0.920 5.31 5.0 1.02 7.5 0.924 5.12 5.0 0.98 7.5 Table 1 Calculation of threshold SRD 13 th July 2026 Report No:C16750TR2 Page 4 of 7 2.4GHz BLE For this apparatus, the calculated threshold was evaluated using a distance of 11mm, and the results are tabulated in the table below. Power level value taken from the RF Exposure test report contained in the FCC submission for FCC ID: 2AC7Z-ESPS3WROOM1 Frequency (GHz) Max EIRP (dBm) Max EIRP (mW) Dist (mm) Calculated Threshold Threshold Limit SAR Test required 2.4 13.3 21.4 11.0 3.0 7.5 No Table 2 Calculation of threshold BLE Determination of the SAR test exclusion for simultaneous transmission Simultaneous transmission SAR test exclusion considerations are calculated according to according to KDB 447498 4.3.2 b) [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)]·[√f(GHz)/x] W/kg for test separation distances ≤ 50 mm; where x = 7.5 for 1-g SAR and x = 18.75 for 10-g SAR Alternatively, 0.4 W/kg for 1-g SAR and 1.0 W/kg for 10-g SAR, when the test separation distance is > 50 mm. SRD [(5.68 mW) / 5 mm)]·[√f(0.915GHz)/18.75]=0.058 W/kg BLE [(21.4 mW) / 11 mm)]·[√f(2.480 GHz)/18.75]=0.163 W/kg SRD + BLE = 0.221 W/kg 0.221 W/kg is under the limit of 4 W/kg for 10-g SAR* therefore simultaneous transmission SAR further assessment is not required. *Reference CFR47 Rule section 1.1310 (c) Conclusion For the required stated distances, the apparatus met the exclusion requirements for SAR testing (FCC). A further SAR assessment will not be required. 13 th July 2026 Report No:C16750TR2 Page 5 of 7 SAR Exclusion Calculation - ISED Standard: RSS-102 Radio Frequency (RF) ~Exposure Compliance of Radio communication Apparatus (All Frequency Bands) Issue 6 December 2023 From RSS-102: 6.3 SAR exemption limits SAR evaluation is required if the separation distance between the user and/or bystander and the antenna and/or radiating element of the device is less than or equal to 20 cm, except when the device operates at or below the applicable output power level (adjusted for tune-up tolerance) for the specified separation distance defined in Table 11. For limb-worn devices where the 10 gram of tissue applies, the exemption limits for routine evaluation in table 11 are multiplied by a factor of 2.5. For controlled-use devices where the 8 W/kg for 1 gram of tissue applies, the exemption limits for routine evaluation in table 11 are multiplied by a factor of 5. Whe…

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Antennas for Wireless Applications Product Specification SRFC025-PS-1.7 Page 1 1.Features Antenna for 3G applications including MIMO systems. GSM850, GSM900, DCS1800, PCS1900, WCDMA2100 1.13mm diameter RF cable with I-PEX MHF connector Self-adhesive mounted Quick and simple integration minimizes design cycle Available in two standard cable lengths 100mm and 150mm, (other lengths available, MOQs apply) 2.Description Avia is intended for use with 3G applications. This product specification shows the performance of the antenna to cover a typical penta-band reception: GSM850/900/1800/1900 and WCDMA. 3.Applications Smart meters Femto / Pico base stations Tracker devices Remote monitoring Machine to Machine POS (Point of Sale) terminals Avia 3G FPC Antenna Part No. SRFC025 flexiiANT ® Product Specification Avia Part No. SRFC025 Antennas for Wireless Applications Product Specification SRFC025-PS-1.7 Page 2 4.Part Number Avia: SRFC025-xxx Note. -xxx refers to cable length option: 5.General Data 6.RF Characteristics Part Number Cable Length SRFC025-100 100mm SRFC025-150 150mm Product name Avia GSM antenna Part Number SRFC025 Frequency 824-960MHz; 1710-2170MHz Polarization Linear Operating temperature -40°C to 85°C Impedance with matching 50 Ω Environmental condition text ISO 16750-4 5.1.1 / 5.1.2 Weight < 0.5 g Antenna type FPC Self-adhesive 3M 468P Dimensions (Antenna) 71.0 x 12.5 x 0.15 (mm) Connection I-PEX MHF1 (20278-112R-13) 824 – 960 MHz 1710 – 1990 MHz 2110 – 2170 MHz Peak gain 4.07dBi 5.44dBi 3.9dBi Average gain -3.31dBi-1.1dBi-1.74dBi Average efficiency >45%>70%>65% Maximum return loss -6.6dB-8.7dB-17dB Maximum VSWR 2.80:1 2.20:1 1.30:1 All data measured in a loaded condition adhered to a plastic carrier free space. Avia Part No. SRFC025 Antennas for Wireless Applications Product Specification SRFC025-PS-1.7 Page 3 7.RF Performance 7.1 Return Loss 7.2 VSWR 8009001000110012001300140015001600170018001900200021002200 -35 -30 -25 -20 -15 -10 -5 0 5 [MHz] [dB] Atyune 1 2 3 4 5 6 MARKERS: MHz dBMHz dBMHz dB RD8025-MP.S1P - S11 1: 824 2: 960 -6.60 -14.39 3: 1710 4: 1990 -8.73 -19.67 5: 2110 6: 2170 -17.77 -22.02 8009001000110012001300140015001600170018001900200021002200 1 2 3 4 5 6 7 8 9 10 [MHz] [] Atyune 1 2 3 4 5 6 MARKERS: MHzMHzMHz RD8025-MP.S1P - S11 1: 824 2: 960 2.76 1.47 3: 1710 4: 1990 2.16 1.23 5: 2110 6: 2170 1.30 1.17 Avia Part No. SRFC025 Antennas for Wireless Applications Product Specification SRFC025-PS-1.7 Page 4 7.3 Antenna patterns 7.3.1 824 MHz – 960 MHz 3D pattern at 890 MHz Drag to rotate pattern and PCB by using Adobe Reader (Click to Activate) Avia Part No. SRFC025 Antennas for Wireless Applications Product Specification SRFC025-PS-1.7 Page 5 7.3.2 1710 MHz – 2170 MHz 3D pattern at 1950 MHz Drag to rotate pattern and PCB by using Adobe Reader (Click to Activate) Avia Part No. SRFC025 Antennas for Wireless Applications Product Specification SRFC025-PS-1.7 Page 6 8. Antenna Dimensions 8.1 Dimensions FPC section All dimensions in mm 8.2 Dimensions assembled L W T Length Width Thickness 71.0 ±0.2 (mm) 12.5 ±0.2 (mm) 0.15 (mm) nominal SRFC025-100 SRFC025-150 L L 160 ±2.0 (mm) 210 ±2.0 (mm) Standard cable lengths for this antenna (other lengths are available, MOQs apply) Avia Part No. SRFC025 Antennas for Wireless Applications Product Specification SRFC025-PS-1.7 Page 7 8.3 I-PEX Connector MHF1 (20278-112R-13) 8.4 Assembly I-PEX Material Copper Alloy Plating Ag Front Side Back 5.0 2 .0 All dimensions in mm Avia Part No. SRFC025 Antennas for Wireless Applications Product Specification SRFC025-PS-1.7 Page 8 9.Electrical Interface 9.1 Host Interface The host PCB requires the mating connector which is the I-PEX MHF (UFL) receptacle. The location should be close to the chip/modules pin for the RF. Any feed from this receptacle should be maintained at 50Ω impedance. 9.2 Transmission Line All transmission lines should be designed to have a characteristic impedance of 50Ω. • The length of the transmission lines should be kept to a minimum • Any other parts of the RF system like transceivers, power amplifiers, etc, should also be designed to have an impedance of 50 Ω Once the material for the PCB has been chosen (PCB thickness and dielectric constant) a coplanar transmission line can easily be designed using any of the commercial software packages for transmission line design. For the chosen PCB thickness, copper thickness and substrate dielectric constant, the program will calculate the appropriate transmission line width and gaps on either side of the feed. A DC blocking capacitor should be placed in line to protect the RF front end. 10. Mechanical Fixing The antenna uses 3M 468MP adhesive on the reverse side of the FPC. The antenna has an easy access split line to peel off to reveal the adhesive side. It is designed for a one time fix to a clean smooth surface. FPC back side Split line for easy peel Avia Part No. SRFC025 Antennas for Wireless Applications Product Specification SRFC025-PS-1.7 Page 9 10.0 Antenna Integration Guide 10.1 Placement For placing the FPC antenna within a device, the host PCB size is not a factor like with PCB mounted antennas. However the placement still needs to follow some basic rules, as any antenna is sensitive to its environment. Use the diagram of six spatial directions below as a guide. The antenna FPC section should ideally maintain a minimum of three directions free from obstructions to be able to operate effectively. The other directions will have obstacles in their paths - these directions still require a minimum clearance. These minimum clearances are further defined in this section. The plastic case is not included in this, only metal objects/components that will obstruct or come in close proximity to the antenna. Six spatial directions relative to FPC Avia Part No. SRFC025 Antennas for Wireless Applications Product Specification SRFC025-PS-1.7 Page 10 10.2 Orientation of FPC The orientation of the FPC with respect to the host PCB …

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Test Report for the FCC and ISED Testing of a PV1525-IV (915MHz) Installation Analyser to FCC Rule 47CFR 15.247 and ISED RSS-247 Issue 4 for Seaward Electronic Ltd Report number: C16749TR3 Project number: C9968 Author: ...................................................................................................... L Trickett Radio Test Engineer Checked: .................................................................................................. J Beevers MPhys(Hons), PhD Radio Testing Team Lead Approved: ................................................................................................. J Beevers MPhys(Hons), PhD Radio Testing Team Lead Issue Description Issue by Date 2 Copy 1 Copy 2 PDF √ JB 10 th July 2026 This report shall not be reproduced, except in full without the prior written approval of Eurofins E&E UK Ltd The results contained in this report are only applicable to the apparatus tested. Commercial in Confidence Date: 10 th July 2026 Report Number: C16749TR3 Page 2 of 51 FCC 15_247_DTS Report Template Issue 10 CONTENTS Test Report Change History .......................................................................................................................5 Section 1 Test Location ......................................................................................................................6 UKAS Accreditation ....................................................................................................................................6 Section 2 Customer Information .......................................................................................................7 Section 3 Equipment Details ..............................................................................................................8 Equipment Under Test (EUT).....................................................................................................................8 EUT Photographs .......................................................................................................................................9 Configuration of EUT ..................................................................................................................................9 EUT Monitoring/Auxiliary Equipment .........................................................................................................9 Monitoring Software ...................................................................................................................................9 Section 4 Test Specifications ......................................................................................................... 10 Knowledge Database References .......................................................................................................... 12 4.1.1 Radiated Emissions (30MHz to 1000MHz) ............................................................................ 12 4.1.2 Radiated Emissions (1GHz to 40GHz) .................................................................................. 12 Compliance Statement ............................................................................................................................ 12 Decision Rule Statement ......................................................................................................................... 13 Section 5 Spurious Emission Results – Radiated and Conducted ............................................. 14 Test Specification .................................................................................................................................... 14 Procedure and Test Software Version .................................................................................................... 14 Radiated Emissions (30MHz to 1GHz) ................................................................................................... 15 5.1.1 Limits at 3m ............................................................................................................................ 15 5.1.2 Emissions measurements ...................................................................................................... 15 5.1.3 Date of Test ............................................................................................................................ 15 5.1.4 Test Area ................................................................................................................................ 15 5.1.5 Tested by ................................................................................................................................ 15 5.1.6 Test Setup .............................................................................................................................. 16 5.1.7 Electric field emissions, 30MHz to 1GHz ............................................................................... 17 Radiated Emissions (1GHz to 10GHz) ................................................................................................... 19 5.1.8 Limits ...................................................................................................................................... 19 5.1.9 Receiver Settings ................................................................................................................... 19 5.1.10 Emissions measurements ...................................................................................................... 19 5.1.11 Date of Test ............................................................................................................................ 19 5.1.12 Test Area ................................................................................................................................ 19 5.1.13 Tested by ................................................................................................................................ 19 5.1.14 Test Setup ...........................................................…

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