OF8-AX1Medical telemetry transmitter

Life Sensing Instruments, Inc. | CONFIDENTIAL pg. 1 Axis Transmitter Setup and Assembly Instructions Life Sensing Instruments, Inc. Life Sensing Instruments, Inc. | CONFIDENTIAL pg. 2 Axis Transmitter: Overview The Axis Transmitter is a component of a wireless medical patient-monitoring system designed to acquire and transmit electrocardiogram (ECG) physiological data to a telemetry receiver via a set of internal antennas. The Axis Transmitter is internally powered by (2) AAA batteries. Axis Transmitter: Setup & Assembly Instructions Insert the Batteries Unscrew each battery cap by grasping the battery cap and turning it counterclockwise until the cap has been full removed. Insert (1) AAA battery into each battery well following the battery direction indicator on the back of the transmitter. Repeat the above instructions for the battery caps but rotate the battery cap clockwise to tighten. Power on the Transmitter Press and hold the button for (2) seconds to power on or off the transmitter. The transmitter will make an audible beep to indicate the transmitter is powering on or off. The Power Button’s LED will flash Purple to indicate the transmitter has a communication link with the Nexus Telemetry Receiver. Power down the Transmitter Press and hold the button for (2) seconds to power on or off the transmitter. System Disassembly Instructions • Power down the transmitter. • Remove the (2) batteries following the instructions above. • Rotate the battery caps clockwise to tighten. Life Sensing Instruments, Inc. | CONFIDENTIAL pg. 3 Axis Transmitter: Disassembly Instructions (Unit) 1. Power down the unit by removing the batteries. 2. Remove the four screws on the back of the Axis Transmitter housing using a Torx bit. 3. Gently lift the housing cover. Be careful not to tear the antennas that are glued to the cover. 4. Gently disconnect both antennas using a plastic pry tool. 5. Disconnect the ECG flex by lifting the latch on the CN2 connector and gently sliding the flex to the right. 6. Disconnect the keypad pigtail by lifting the latch on the CN3 connector and gently sliding the flex downward. 7. Desolder the four wires attached to the PCB. 8. Remove the four screws securing the PCB. 9. Gently lift the PCB from the top side. 10. Disconnect the LCD on the rear of the PCB by lifting the latch. 11. Once the board is free, remove it from the housing.

Life Sensing Instruments, Inc. | CONFIDENTIAL Pg. 1 AXIS TRANSMITTER Operator’s Manual Life Sensing Instruments, Inc. December 16, 2025 Life Sensing Instruments, Inc. | CONFIDENTIAL Pg. 2 Axis Transmitter Overview The Axis Transmitter is a component of a wireless medical patient-monitoring system designed to acquire and transmit electrocardiogram (ECG) physiological data to a telemetry receiver. The receiver forwards the data to a central monitoring station for display, trending, and analysis by healthcare professionals. The Axis uses four patient lead wires connected to disposable ECG electrodes to derive three ECG channels. The analog ECG signals are digitized, processed, and transmitted wirelessly using the Wireless Medical Telemetry Service (WMTS) frequency bands. Axis Keypad/Buttons The keypad provides a protective cover for the LCD, contains the assigned TrensCenter Channel Number, and has (4) buttons: • POWER BUTTON: o This button has a dual functionality – the button is used for powering the transmitter and displays high-level status information. o Power Functionality: Press and hold the button for (2) seconds to power on or off the transmitter. The transmitter will make an audible beep to indicate the transmitter is powering on or off. o Status Functionality: When the PMT is powered on, the Power Button will be illuminated with different colors to indicate the transmitter’s status:  Orange: Transmitter is powered on without an active communication link with the Nexus Telemetry Receiver. To resolve, ensure that the transmitter is in the pre-defined wireless range and confirm that the Nexus Telemetry Receiver is powered on.  Purple: Transmitter is powered on with an active communication link with the Nexus Telemetry Receiver.  Blue: Transmitter is powered on with an active communication link with the Nexus Telemetry Receiver, and the transmitter has been admitted to TrensCenter software.  Red: Transmitter has reached a state of low battery. Replace batteries to resolve. o Main Screen Functionality: Press this button to navigate to the Main Screen. Note: The Main Screen only displays when the Transmitter is admitted to TrensCenter. • VIEW BUTTON: o Lead Off Functionality: Press this button to navigate to the View Screen which displays the connection status of each ECG electrode. A Green Checkmark indicates that the electrode is connected. A Red X indicates that the electrode is disconnected. Note: This button only has functionality when the transmitter is admitted to TrensCenter. • STATUS BUTTON: o This button is used to access the Status Screen for support purposes. • REMOTE RECORD BUTTON: o Press and hold this button for (1) second to store a “Remote” Event in TrensCenter. Note: This button only has functionality when the transmitter is admitted to TrensCenter. Axis Display Overview The display has three modes of operation that are designed to maximize battery life. • Active Mode: The LCD is turned on and at full brightness. This mode is initiated when the keypad buttons are pressed, or the transmitter is powered on. Active Mode uses the most current and impacts battery life. • Inactive Mode: The LCD is turned on but has dimmed the brightness level due to inactivity. • Sleep Mode: The LCD is turned off due to inactivity. Sleep Mode uses the least amount of current and increases battery life. The display is configured to display Status Indicators at the top of all screens. Examples of Status Indicators include Channel Number, Filter/Monitor, Pacer, Remote Record, Primary/Auxiliary, Battery Strength, and Signal Strength. The Main Screen displays the patient’s Heart Rate (as determined and reported by TrensCenter) and the patient’s configured Target Heart Rate Range. Life Sensing Instruments, Inc. | CONFIDENTIAL Pg. 3 Instructions for Use Insert the Batteries Unscrew each battery cap by grasping the battery cap and turning it counterclockwise until the cap has been full removed. Insert (1) AAA battery into each battery well following the battery direction indicator on the back of the transmitter. Repeat the above instructions for the battery caps but rotate the battery cap clockwise to tighten. CAUTION: MAKE SURE THE BATTERIES ARE INSTALLED CORRECTLY. IF THE BATTERIES ARE INSTALLED INCORRECTLY, THE TRANSMITTER WILL NOT FUNCTION. CAUTION: MAKE SURE THAT THE BATTERY CAP IS TIGHT. IF THE CAP IS NOT TIGHTENED PROPERLY, THE TRANSMITTER SIGNAL MAY BE INTERMITTENT, AND THE WATERPROOFING SEAL MAY NOT SEAL WHICH MAY DAMAGE TO THE TRANSMITTER. Power on the Transmitter Press and hold the button for (2) seconds to power on or off the transmitter. The transmitter will make an audible beep to indicate the transmitter is powering on or off. The Power Button’s LED will flash Purple to indicate the transmitter has a communication link with the Nexus Telemetry Receiver. Connect the Lead Wires & Electrodes The patient lead wires have a color-coded connector that plugs into a corresponding color-coded transmitter connector. When inserting the lead wires, insert the connector until the cables fit firmly into the transmitter. CAUTION: ONLY USE THE LEAD WIRES SUPPLIED BY LSI FOR OPTIMAL PERFORMANCE. Gently abrade the electrode sites with an alcohol prep pad until slight redness is observed. Dry the site before applying the electrodes. Attach the electrodes to the patient on the prepared sites. Apply pressure to the outer edges of the electrode, not the center. Applying pressure to the center may cause the electrode conductive jelly to ooze out, resulting in a loose electrode. Attach the electrodes to the lead wires. For optimum monitoring, the electrodes should be placed in the following locations: • WHITE (Right Arm): Right Clavicle and Right Sternal Border in the interclavicular notch • RED (Left Leg): Lower Left Rib Cage, at the V6 chest lead position • BLACK (Left Arm): Left Clavicle and Left Sternal Border in the interclavicular notch • GREEN (Right Leg): Grounding electrode, Lower Right Rib Cage…

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Life Sensing Instruments, Inc. | CONFIDENTIAL Axis Transmitters: External Photos Front: Back: Top: Bottom:

Life Sensing Instruments, Inc. | CONFIDENTIAL Axis Transmitter: FCC Label Label Size: 1.5” H x 1.5” W Life Sensing Instruments, Inc. | CONFIDENTIAL Axis Transmitter: FCC Label Location Label is applied on rear of housing

Life Sensing Instruments, Inc. | CONFIDENTIAL Axis Transmitter: Internal Photos

RADIO FREQUENCY EXPOSURE REPORT FOR THE Axis Transmitter Report No.: 111599-16 Date of issue: March 23, 2026 PREPARED FOR: Alejandro Melchor Life Sensing Instruments, Inc. 2102 Cambridge Beltway Drive, Suite A1 Charlotte NC, 28273 PREPARED BY: Kevin Navarro CKC Laboratories, Inc. 5046 Sierra Pines Drive Mariposa, CA 95338 The test data contained in this report documents the observed testing parameters pertaining to and are relevant for only the sample equipment tested in the agreed upon operational mode(s) and configuration(s) as identified herein. Compliance assessment remains the client’s responsibility. This report may not be used to claim product endorsement by A2LA or any government agencies. This test report has been authorized for release under quality control from CKC Laboratories, Inc. Steve Behm Director of Quality Assurance & Engineering Services CKC Laboratories, Inc. Page 2 of 14 Report No: Purpose: To demonstrate compliance with United States, Canada, Australia, New Zealand, European Union and/or United Kingdom RF Exposure requirements for Portable equipment (devices used ≤20cm from the body) with power output below exemption levels or Mobile equipment (devices used >20cm from the body) where Maximum Permissible Exposure (MPE) Calculations apply. Device and Antenna Operating Configuration: Device operating at maximum output power with continuous transmission of modulated data. Method: This equipment is evaluated in accordance with the guidelines set forth in 47 CFR 1.1310, KDB 447498 & ANSI C95.1 for the US, Health Canada Safety Code 6 & RSS 102 for Canada, ARPANSA RPS S-1 for AU & NZ and EN 62479 or EN 62311 for EU and UK. Other Considerations: Report considers stand-alone equipment configurations only. RF Exposure limits are calculated at the mid-point of each operating band. Multi-transmitter equipment are assumed to permit simultaneous transmission, unless indicated otherwise. Simultaneous transmissions are aggregated providing a worst case assessment. Referenced Test Reports: The following test reports were referenced in conjunction with this assessment: 111599-7 Decision Rule: Outcome of RF exposure assessment is listed in the comment section(s) below as a binary statement for simple acceptance rule according to ILAC-G8 (2019). Designation Information: Location *NIST CB# FCC Canada Canyon Park, Bothell, WA US0103 US1024 3082C Brea, CA 3082D Fremont, CA 3082B Mariposa, CA 3082A Page 3 of 14 Report No: 111599-16 RF Exposure Mobile Equipment Assessment Power Density Calculations (Single Transmitter, Stand Alone) MPE Calculation: 푃표푤푒푟 퐷푒푛푠푖푡푦 ( 푆 ) = 퐸퐼푅푃 4휋 푑 2 Given: EIRP in mW or W and d in cm or m US/FCC MPE Assessment Power Reported is: ☒ Peak ☐ Average Limit Used is: ☒ General Population ☐ Occupational Exposure Operating Band MHz Power dBm Ant Type/Gain dBi EIRP dBm Distance cm MPE mW/cm 2 Limit mW/cm 2 Comment 608.30MHz- 613.70MHz 2.20 Dipole flex Film / 0dBi 2.20 20 0.00033 0.4073 Pass US/FCC MPE Assessment Power Reported is: ☒ Peak ☐ Average Limit Used is: ☒ General Population ☐ Occupational Exposure Operating Band MHz Power dBm Ant Type/Gain dBi EIRP dBm Distance cm MPE mW/cm 2 Limit mW/cm 2 Comment 1395.30MHz- 1399.65MHz 8.50 Dipole flex Film / 0dBi 8.50 20 0.00141 0.9317 Pass US/FCC MPE Assessment Power Reported is: ☒ Peak ☐ Average Limit Used is: ☒ General Population ☐ Occupational Exposure Operating Band MHz Power dBm Ant Type/Gain dBi EIRP dBm Distance cm MPE mW/cm 2 Limit mW/cm 2 Comment 1427.30MHz- 1431.80MHz 6.20 Dipole flex Film / 0dBi 6.20 20 0.00083 0.9530 Pass Page 4 of 14 Report No: 111599-16 RF Exposure Mobile Equipment Assessment (Multi Transmitter, Simultaneous Transmission) MPE Calculation: 푃표푤푒푟 퐷푒푛푠푖푡푦 ( 푆 ) = 퐸퐼푅푃 4휋 푑 2 Given: EIRP in mW or W and d in cm or m For multi-transmitter (including multi-band) equipment with simultaneous transmission, assessment of compliance to MPE limits is based on fractional analysis for each band of operation: ∑ 푆(퐶푎푙푐푢푙푎푡푒푑) 푖 푀푃퐸 퐿푖푚푖푡 푖 푖 ≤1. For Mixed Measurements, the calculation is modified to include multiple RF exposure assessment types: ∑ 푆(퐶푎푙푐푢푙푎푡푒푑) 푖 푀푃퐸 퐿푖푚푖푡 푖 푖 + ∑ 푆(푀푒푎푠푢푟푒푑) 푖 푀푃퐸 퐿푖푚푖푡 푖 푖 + ∑ 푆퐴푅 푖 푆퐴푅 퐿푖푚푖푡 푖 푖 ≤1. The equipment is deemed to meet mobile RF exposure conditions when aggregate values are less than 1. US/FCC MPE Assessment Power Reported is: ☒ Peak ☐ Average Limit Used is: ☒ General Population ☐ Occupational Exposure Operating Band MHz Power dBm Ant Type/Gain dBi EIRP dBm Distance cm MPE mW/cm 2 Limit mW/cm 2 S/Limit 608.30MHz- 613.70MHz 2.20 Dipole flex Film / 0 2.20 20 0.00033 0.4073 0.00081 1395.30MHz- 1399.65MHz 8.50 Dipole flex Film / 0 8.50 20 0.00141 0.9317 0.00151 1427.30MHz- 1431.80MHz 6.20 Dipole flex Film / 0 6.20 20 0.00083 0.9530 0.00087 Aggregate: 0.00319 Comment Pass Page 5 of 14 Report No: 111599-16 Summary: Exemptions: Equipment demonstrating compliance by portable RF exposure exemption have been evaluated, without further testing, for use under either portable or mobile RF exposure configurations. Additional configurations including collocation or simultaneous transmission with other transmitters (including necessary separation distances) are subject to further assessment. Certain exemption criteria may define specific separation distances. It is assumed that the manufacturer shall design the equipment such that these minimum separation distance is met. MPE Calculation Results: Equipment demonstrating compliance with MPE calculations have been evaluated, without further testing, for use under mobile RF exposure configurations as identified herein. Additional configurations including collocation or simultaneous transmission with other transmitters (including necessary separation distances) are subject to further assessment. It is assumed that the manufacturer shall design the equipment such that the minimum separation distance of 20cm (or greater, as listed above) is met or that the manufacturer provides a protection guide (e.g. installation instructions) to …

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AXIS TRANSMITTER Unlicensed Transmitters: Approved Antennas List This list addresses antenna identification requirements for unlicensed rules where general antenna information is required (e.g. 15.209, 15.231). Manufacturer Antenna Description Type Length (mm) Width (mm) Other Info Connector Type Notes Life Sensing Instruments Inc. Axis Upper Antenna: LSI0815 Dipole Flex Film Antenna Dipole 39.37 57.91 0.1mm Thick UFL 1 Life Sensing Instruments Inc. Axis Lower Antenna: LSI0816 Dipole Flex Film Antenna Dipole 28.448 57.83 0.1mm Thick UFL 1 Notes: 1. Antenna is integrated into the device and can only be serviced by authorized personnel.

This report contains a total of 72 pages and may be reproduced in full only. Partial reproduction may only be done with the written consent of CKC Laboratories, Inc. Life Sensing Instruments Inc. EMC TEST REPORT FOR Axis Transmitter Tested to The Following Standards: SpecLimit: FCC Part 95 SUBPART H Report No.: 111599-7 Date of issue: March 13, 2026 This test report bears the accreditation symbol indicating that the testing performed herein meets the test and reporting requirements of ISO/IEC 17025 under the applicable scope of testing for CKC Laboratories, Inc. We strive to create long-term, trust based relationships by providing sound, adaptive, customer first testing services. We embrace each of our customers’ unique EMC challenges, not as an interruption to set processes, but rather as the reason we are in business. Test Certificate # 803.01 Page 2 of 72 Report No.: 111599-7 TABLE OF CONTENTS Administrative Information .......................................................................................................................... 3 Test Report Information ............................................................................................................................................ 3 Report Authorization ................................................................................................................................................. 3 Test Facility Information ............................................................................................................................................ 4 Software Versions ...................................................................................................................................................... 4 Site Registration & Accreditation Information .......................................................................................................... 4 Summary of Results ................................................................................................................................................... 5 Standard / Specification: FCC Part 95 Subpart H ................................................................................................... 5 Modifications During Testing ..................................................................................................................................... 5 Conditions During Testing.......................................................................................................................................... 5 Equipment Under Test (EUT) ..................................................................................................................................... 6 General Product Information..................................................................................................................................... 7 FCC Part 95 Subpart H ................................................................................................................................. 15 95.2369 WMTS Field Strength Limits....................................................................................................................... 15 2.1049 20dB Bandwidth .......................................................................................................................................... 25 95.2379(a)/95.2379(b) WMTS Unwanted Emissions Limits .................................................................................... 30 95.2365 WMTS frequency accuracy ........................................................................................................................ 66 Supplemental Information .......................................................................................................................... 71 Measurement Uncertainty ...................................................................................................................................... 71 Emissions Test Details .............................................................................................................................................. 71 Page 3 of 72 Report No.: 111599-7 Administrative Information Test Report Information REPORT PREPARED FOR: REPORT PREPARED BY: Life Sensing Instruments, Inc. 2102 Cambridge Beltway Drive, Suite A1 Charlotte, NC 28273 Viviana Prado CKC Laboratories, Inc. 5046 Sierra Pines Drive Mariposa, CA 95338 Representatives: Karen Whipkey - F-Squared Laboratories Alejandro Melchor - Life Sensing Instruments, Inc. Project Number: 111599 Customer Reference Number: 7133 DATE OF EQUIPMENT RECEIPT: January 19, 2026 DATE(S) OF TESTING: January 20, 21, 22, and 26, 2026 and February 2, 4, 5, 6, and 11, 2026 Report Authorization The test data contained in this report documents the observed testing parameters pertaining to and are relevant for only the equipment provided by the client, tested in the agreed upon operational mode(s) and configuration(s) as identified herein. Compliance assessment remains the client’s responsibility. This report may not be used to claim product endorsement by A2LA or any government agencies. This test report has been authorized for release under quality control from CKC Laboratories, Inc. . Steve Behm Director of Quality Assurance & Engineering Services CKC Laboratories, Inc. Page 4 of 72 Report No.: 111599-7 Test Facility Information Our laboratories are configured to effectively test a wide variety of product types. CKC utilizes first class test equipment, anechoic chambers, data acquisition and information services to create accurate, repeatable and affordable test results. TEST LOCATION(S): CKC Laboratories, Inc. 110 North Olinda Place Brea, CA 92823 Software Versions CKC Laboratories Proprietary Software Version EMITest Emissions 5.03.20 and 5.03.24 EMITest Immunity 5.03.10 Site Registration & Accreditation Information Location *NIST CB # FCC Canada Japan Canyon Park, Bothell, WA US0103 US1024 3082C A-0136 Brea, CA US0103 US1024 308…

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