MTD-0030Tracking Device with Transceiver

VitalSense Wristband User Manual TimeKeeping Systems, Inc. Introduction The VitalSense Wristband is a PPG-based wearable monitoring device designed to support operational oversight by providing physiological trend indicators in a correctional environment. The device measures heart rate and blood oxygen saturation (SpO₂) and transmits this information wirelessly using proprietary RF communication to the GUARD1 Tracking System. The VitalSense Wristband is intended for situational awareness and early warning purposes only and is not intended for medical diagnosis, treatment, or patient care. Configurable alerts within the GUARD1 system provide flexibility in establishing thresholds for early detection of critical incidents. Intended Use The VitalSense Wristband is intended for continuous, non-invasive monitoring of heart rate and blood oxygen levels for individuals under supervised custody. It is designed for operational monitoring purposes and is not intended to replace or function as a clinical medical device, diagnostic tool, or therapeutic system. The device is intended to be applied, monitored, and interpreted by trained facility personnel in accordance with established operational procedures. Device Overview The VitalSense Wristband consists of the following components: • PPG optical sensor module • Disposable tamper-resistant wristband • Internal non-rechargeable battery • Proprietary RF communication module Each VitalSense Wristband is a single-use, disposable device and must be discarded according to facility procedures once the battery is depleted or the device is removed. Reuse is not supported due to battery life limitations and the tamper-resistant design of the wristband. Applying the VitalSense Wristband • Verify the device is active and properly registered in the GUARD1 Tracking System. • Place the wristband on the wearer’s wrist with the sensor positioned directly against the skin. • Tighten the band until it is secure, ensuring it cannot be removed without damage. • Confirm the fit is snug but comfortable, allowing normal circulation. • Ensure the sensor is in contact with clean, dry skin. Improper placement, excessive movement, or foreign material between the sensor and skin may affect measurement quality, • Confirm vital signs are received within the GUARD1 system. Operation When properly applied, the VitalSense Wristband automatically begins monitoring and transmitting vital sign data. By default, the device transmits a signal to the GUARD1 Tracking System once per second. Actual transmission behavior may vary based on system configuration and environmental conditions. If signal transmission is interrupted or data falls outside configured parameters, an alert is generated in the GUARD1 Tracking System. Alerts and Monitoring Alerts are configured within the GUARD1 Tracking System based on predefined thresholds such as heart rate limits, oxygen saturation levels, or signal loss. It is the responsibility of facility staff to respond to alerts according to established operational protocols. Alert delivery and timing may be affected by wireless coverage, environmental conditions, or system configuration. The absence of an alert should not be interpreted as confirmation of normal condition. Safety Information • The VitalSense Wristband contains a non-rechargeable battery. Do not attempt to recharge, open, or modify the device. • Inspect the device prior to application. Do not use if damaged or malfunctioning. • Ensure the wristband is applied with proper tension to avoid circulation restriction. • The device is water-resistant but should not be submerged for prolonged periods. • Discontinue use if skin irritation or discomfort occurs and follow facility procedures for device removal and evaluation. Disposal The VitalSense Wristband is a disposable device. When battery life is exhausted, dispose of the device in accordance with local regulations and facility disposal policies for electronic waste or other applicable regulated waste categories, as appropriate. Technical Specifications • Monitoring Technology: Photoplethysmography (PPG) • Measurements: Heart Rate, Blood Oxygen Saturation (SpO₂) • Communication: Proprietary RF • Battery Type: Internal, non-rechargeable • Usage: Single-use, disposable • Intended Operating Environment: Indoor, facility-controlled settings Certification FCC Compliance Pursuant to FCC 15.21 of the FCC rules, changes not expressly approved by TimeKeeping Systems, Inc. might cause harmful interference and void the FCC authorization to operate this product. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation. This product complies with FCC radiation exposure limits set forth for an uncontrolled environment. ISED (Canada) Compliance This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: 1. This device may not cause interference. 2. This device must accept any interference, including interference that may cause undesired operation of the device. This device complies with Industry Canada’s RSS-102 radiation exposure limits set forth for an uncontrolled environment. L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : 1. L’appareil ne doit pas produire de brouillage; 2. L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement. Cet appareil est conforme aux limites d'exposition aux rayonnements de la norme …

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Test Lab Attestation Letter Date of Test: April 6-20, 2026 Applicant Name: TimeKeeping Systems, Inc. FCC ID: MTD-0030 Test Item: Security Device with Transceiver Model: PPG-030 Name of Engineer Performing Test: Joseph Strzelecki, Chris D’Alessio, Manav Ahuja Radiometrics Midwest Corporation Statement of Compliance: Radiometrics declares that this Unit has been tested in accordance with the test method identified in this test report and that we observed it being tested. We also declare that the Unit complies with the relevant limits. All instrumentation and accessories used to test this unit for compliance to the indicated test method are calibrated regularly in accordance with ISO 17025:2017 requirements by laboratories accredited by A2LA, NVLAP, or ACLAS for the measurement parameters. The measurements were made at: Radiometrics Midwest Corporation 12 Devonwood Avenue Romeoville IL 60446 Test Lab Witness- Joseph Strzelecki Signature of Test Lab Witness: Full Name, Typed: Joseph R Strzelecki Title of Witness: Senior EMC Engineer Email Address: [email protected] Phone No.: 815-293-0772 Test Lab Stamp:

Page 1 of 1 RP-10291 12 Devonwood Ave SOL VING A WAV E OF EMI COMP LIANCE PR OB LE MS Romeoville, IL 60446 Tel: (815) 293-0772 Federal Communications Commission June 10, 2026 Authorization and Evaluation Division 7435 Oakland Mills Rd. Columbia, MD 21046 Reference FCC ID: MTD-0030 Organization: TimeKeeping Systems, Inc. 1. Long Term Confidentiality In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, (TimeKeeping Systems, Inc.) hereby requests long-term confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Circuit Schematics 7a TimeKeeping Tag Main Board Schematic 10291 7b TimeKeeping Tag Sensor Board Schematic 10291 Block Diagram 8 TimeKeeping Tag Block Diagram 10291 EUT description (Operational Description) 10 TimeKeeping Operational Description 10291 The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. They are considered confidential trade secrets. Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, we also request temporary confidential treatment of information accompanying this application as outlined below for 180 days: Exhibit Type File Name Internal Photos 4a TimeKeeping Internal Photos 10291 External Photos 5 TimeKeeping External Photos 10291 Authorized Signature Joseph Strzelecki Senior EMC Engineer Radiometrics Midwest Corporation Authorized Agent for TimeKeeping Systems, Inc..

Page 1 of 2 RP-10291 FCC Label information June 26, 2026 Innovation, Science, and Economic Development Canada (ISED) 3701 Carling Ave., Bldg. 94, Ottawa, ON, K2H 8S2 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Rd. Columbia, MD 21046 FCC ID: MTD-0030 ISEDC ID: 12375A-0030 Dear Sir or Madam: Subject: Justification for Label Exemption due to Physical SizeTo Whom It May Concern,We, Timekeeping, hereby request a label exemption for our Model PPG-030, under the provisions of 47 CFR Part 2.925(f). The device is physically too small to accommodate a legible FCC/ISED label. Also placing the required label on the exterior surface of the device is would compromise the product's design and intended use. The PPG-030 will be in a small puck that can be placed in our standard non conductive wristband. Neither etching nor a label can be placed over the clear lens of the PPG-030 as that is required for it the PPG-030 to function properly. The sides of the PPG puck are threaded, while the top is a ratchet tooth to lock into the wristband, both of which prohibit a label or etching. Therefore, the full FCC and IC ID numbers and the required compliance statements will be:Prominently printed in the User Manual supplied to the user and also on the packaging. The following label will be placed on the on the PPG-030 product packaging: • The label will be a PP-301, 2 mil White Polyester. • The label information will be in the user manual. Please contact me should there be need for any additional clarification or information. Page 2 of 2 RP-10291 Best Regards, Authorized Signature Joseph Strzelecki Senior EMC Engineer Radiometrics Midwest Corporation Authorized Agent for TimeKeeping Systems, Inc.

Page 1 of 1 RP-10291 RF Exposure FCC ID: MTD-0030 These calculations are based on the highest EIRP possible from the EUT, measured in the radiated mode. EIRP was calculated using the following. EIRP = (E x d)2/30, where: • E = electric field strength in V/m, • d = measurement distance in meters (m). It was measured to be 92.5 dBuV/m at 2402 MHz at 3 meters or -2.7 dBm (0.53 mW) EIRP. KDB 447498 D04 Interim General RF Exposure Guidance v01, Section 2.1.2: 1mW Test Exemption As per Section 2.1.2: of KDB 447498 D04 v01: “Per § 1.1307(b)(3)(i)(A), a single RF source is exempt RF device (from the requirement to show data demonstrating compliance to RF exposure limits, as previously mentioned) if the available maximum time- averaged power is no more than 1 mW, regardless of separation distance. This exemption applies to all operating configurations and exposure conditions, for the frequency range 100 kHz to 100 GHz, regardless of fixed, mobile, or portable device exposure conditions. This is a standalone exemption, and it cannot be applied in conjunction with any other test exemption.” Band Freq. (MHz) Max Power EIRP (dBm) Tune up Tolerance (dB) Max Power (mW) Duty Cycle % Average EIRP (mW) 2.4G 2402 -2.7 2.5 0.95 10 0.095 As can be seen in the table above, the average power is much less than 1 mW, therefore it is exempt from testing. The product is stand-alone transmitter A 10% duty cycle was used for the calculation. In actual use, it will be lower. SAR EXCLUSION RESULT In accordance with FCC KDB Publication 447498 D01 V05R06 Clause 4.3.1 a), The 1‐g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power, mW)/(min. separation distance, mm)] x [√f(GHz)] ≤ 3.0 for 1‐g extremity SAR, where ‧ f(GHz) is the RF channel transmit frequency in GHz Judgement: The product is exempt from SAR testing

Radiomet.com Page 1 of 19 Electromagnetic Compatibility Test Report Tests Performed on a TimeKeeping Systems, Inc. Tracking Device, Models PPG-030 Radiometrics Document RP-10291 Product Detail: FCC ID: MTD-0030 IC: 12375A-0030 FCC Equipment type: “DSR-Part 15 Remote Control/Security Device with Transceiver” ISED Equipment type: “Security Device / Alarm System” Test Standards: US CFR Title 47, Chapter I, FCC Part 15 Subpart C FCC Part 15 CFR Title 47: 2024 Canada ISED; RSS-210, Issue 11: 2019 as required for Category I Equipment IC RSS-GEN Issue 5: 2018 / 2021 This report concerns: Original Grant for Certification FCC Part 15.249 Tests Performed For: Test Facility: TimeKeeping Systems, Inc. 30700 Bainbridge Rd., Suite H Solon, OH 44139 Radiometrics Midwest Corporation 12 Devonwood Avenue Romeoville, IL 60446-1349 (815) 293-0772 Test Date(s): April 6-20, 2026 Document RP-10291 Revisions: Rev. Issue Date Revised By 0 June 10, 2026 1 June 25, 2026 Manav Ahuja Radiometrics Midwest Corporation Testing of: TimeKeeping Systems, Inc., Model PPG-030, Tracking Device RP-10291 Rev. 0 Radiomet.com Page 2 of 19 Table of Contents 1.0 ADMINISTRATIVE DATA ............................................................................................................... 3 2.0 TEST SUMMARY AND RESULTS ................................................................................................. 3 2.1 RF Exposure Compliance Requirements .................................................................................... 4 3.0 EQUIPMENT UNDER TEST (EUT) DETAILS ................................................................................ 4 3.1 EUT Description .......................................................................................................................... 4 3.1.1 FCC Section 15.203 & RSS-GEN Antenna Requirements .................................................... 4 4.0 TESTED SYSTEM DETAILS .......................................................................................................... 4 4.1 Tested System Configuration ...................................................................................................... 4 4.2 EUT Operating Modes ................................................................................................................ 4 4.3 Special Accessories .................................................................................................................... 4 4.4 Equipment Modifications ............................................................................................................. 5 5.0 TEST SPECIFICATIONS ............................................................................................................... 5 6.0 TEST PROCEDURE DOCUMENTS ............................................................................................... 5 7.0 RADIOMETRICS’ TEST FACILITIES ............................................................................................. 5 8.0 DEVIATIONS AND EXCLUSIONS FROM THE TEST SPECIFICATIONS ...................................... 6 9.0 CERTIFICATION ............................................................................................................................ 6 10.0 TEST EQUIPMENT TABLE .......................................................................................................... 6 11.0 TEST SECTIONS ......................................................................................................................... 6 11.1 Radiated RF Emissions............................................................................................................. 6 11.1.1 Field Strength Calculation ................................................................................................... 7 11.1.2 Duty Cycle .......................................................................................................................... 7 11.1.3 Radiated Emissions Test Results ....................................................................................... 9 11.2 Occupied Bandwidth Data ....................................................................................................... 17 11.2.1 Measurement Instrumentation Uncertainty ....................................................................... 19 12.0 REVISION HISTORY ................................................................................................................. 19 Notice: This report must not be reproduced (except in full) without the written approval of Radiometrics Midwest Corporation. Radiometrics Midwest Corporation Testing of: TimeKeeping Systems, Inc., Model PPG-030, Tracking Device RP-10291 Rev. 0 Radiomet.com Page 3 of 19 1.0 ADMINISTRATIVE DATA Equipment Under Test: A TimeKeeping Systems, Inc., Tracking Device Model: PPG-030 Serial Number: A This will be referred to as the EUT in this Report Date EUT Received at Radiometrics: Test Date(s): April 6, 2026 April 6, 7, 17, and 20 2026 Test Report Written and Authorized By: Test Witnessed By: Joseph Strzelecki Senior EMC Engineer The tests were not witnessed by personnel from TimeKeeping Systems, Inc.. Radiometrics’ Personnel Responsible for Test: EUT Checked By: 06/10/2026 Date Joseph Strzelecki Senior EMC Engineer NARTE EMC-000877-NE Chris D’Alessio EMC Technician Manav Ahuja EMC Engineer Joseph Strzelecki Manav Ahuja Chris D’Alessio Radiometrics 2.0 TEST SUMMARY AND RESULTS The EUT (Equipment Under Test) is a Tracking Device, Model PPG-030, manufactured by TimeKeeping Systems, Inc. The detailed test results are presented in a separate section. The following is a summary of the test results. Emissions Tests Results Environmental Phenomena Frequency Range Basic Standard Test Result RF Radiated Emissions 30-25,000 MHz RSS-210 & FCC Part 15.249 Pass Occupied Bandwidth Test Fundamental Freq. RSS-GEN & FCC Part 15 Pass IEC 17025 Decision Rule: The declaration of pass or fail is based on the specifications listed above. The …

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Application Report 2.4-GHz Inverted F Antenna ABSTRACT This document describes a printed-circuit board (PCB) antenna design that can be used with all 2.4-GHz transceivers and transmitters from Texas Instruments ™ . The maximum gain when used on the reference board is measured to be +3.3 dBi, and the overall size requirements for this antenna are 25.7 × 7.5 mm (not including ground plane). Table of Contents 1 Description of the antenna Design........................................................................................................................................2 2 Measurement Results.............................................................................................................................................................3 2.1 Radiation Pattern...............................................................................................................................................................3 2.2 Reflection.........................................................................................................................................................................10 2.3 Bandwidth.........................................................................................................................................................................11 3 Summary................................................................................................................................................................................11 4 References.............................................................................................................................................................................11 5 Revision History...................................................................................................................................................................12 Trademarks Texas Instruments ™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. www.ti.comTable of Contents SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna1 Copyright © 2021 Texas Instruments Incorporated 1 Description of the antenna Design It is important to make an exact copy of the antenna dimensions to obtain optimum performance. The easiest approach to implement the antenna in a PCB CAD tool is to import the antenna layout from a gerber file or a DXF file. Such files are included in CC2430DB reference design [1]. The gerber file is called Inverted_F_Antenna.spl and the DXF file is called Inverted_F_Antenna.dxf. If the antenna is implemented on a PCB that is wider than the antenna, avoid placing components or having a ground plane close to the end points of the antenna. If the CAD tool being used does not support importing gerber or DXF files, see Figure 1-1 and Table 1-1. The antenna impedance is tuned to 50 ohm on the reference board. The impedance will however be affected by different size and shape of the ground plane, objects in the antenna nearfield such as mechanical assemblies (housing, batteries, etc.), PCB thickness, PCB material and so on. It is therefore recommended to add a pi-network close to the antenna feedpoint for impedance matching. The results presented in this document are based on an antenna implemented on a PCB with a 1-mm thickness using standard FR-4 material. Figure 1-1. IFA Dimensions Table 1-1. IFA Dimensions H15.70 mmW20.46 mm H20.74 mmL125.58 mm H31.29 mmL216.40 mm H42.21 mmL32.18 mm H50.66 mmL44.80 mm H61.21 mmL51.00 mm H70.80 mmL61.00 mm H81.80 mmL73.20 mm H90.61 mmL80.45 mm W11.21 mm Description of the antenna Designwww.ti.com 22.4-GHz Inverted F AntennaSWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 2 Measurement Results All of the results presented in this section are based on measurements performed with the CC2430DB [1] evaluation board. 2.1 Radiation Pattern Figure 2-1 shows how to relate all of the radiation patterns to the orientation of the antenna. The radiation patterns were measured with the CC2430 device programmed to 0-dBm output power. Figure 2-1. Relating Antenna to Radiation Patterns www.ti.comMeasurement Results SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna3 Copyright © 2021 Texas Instruments Incorporated Figure 2-2 shows the XY plane vertical polarization. Figure 2-2. XY Plane–Vertical Polarization Measurement Resultswww.ti.com 42.4-GHz Inverted F AntennaSWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Figure 2-3 shows the XY plane horizontal polarization. Figure 2-3. XY Plane–Horizontal Polarization www.ti.comMeasurement Results SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna5 Copyright © 2021 Texas Instruments Incorporated Figure 2-4 shows the XZ plane vertical polarization. Figure 2-4. XZ Plane–Vertical Polarization Measurement Resultswww.ti.com 62.4-GHz Inverted F AntennaSWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Figure 2-5 shows the XZ plane horizontal polarization. Figure 2-5. XZ Plane–Horizontal Polarization www.ti.comMeasurement Results SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna7 Copyright © 2021 Texas Instruments Incorporated Figure 2-6 shows the YZ plane vertical polarization. Figure 2-6. YZ Plane–Vertical Polarization Measurement Resultswww.ti.com 82.4-GHz Inverted F AntennaSWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Figure 2-7 shows the YZ plane horizontal polarization. Figure 2-7. YZ Plane–Horizontal Polarization www.ti.comMeasurement Results SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna9 Copyright © 202…

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Page 1 of 2 RP-10291 Test Setup Photographs Photographs of Radiated Emissions Test Setup The EUT was placed on a foam block, in order to change the orientation Page 2 of 2 RP-10291