FCC ID: 2AYGT-JYM Monocular Head Mounted Thermal Imager

J-YM Monocular Head Mounted Thermal Imager User Manual V1.3 Table of Contents 1. Device Information and Description..................................................................................................2 1.1 Device Information..................................................................................................................2 1.2 Device Specifications...............................................................................................................5 2. Assembly and Power-on for Use........................................................................................................7 2.1 Assembly/Disassembly............................................................................................................7 2.1.1 Installing the Battery.....................................................................................................7 2.1.2 Handheld Use................................................................................................................7 2.1.3 Helmet-mounted Use....................................................................................................7 2.2 Power-on for Use.....................................................................................................................8 3. Operating Instructions........................................................................................................................9 3.1 Home Screen Operations.........................................................................................................9 3.1.1 Home Screen Display...................................................................................................9 3.1.2 Digital Zoom...............................................................................................................11 3.1.3 Polarity Switching.......................................................................................................11 3.1.4 Manual Image Correction...........................................................................................11 3.1.5 Image Capture.............................................................................................................11 3.1.6 Video Capture.............................................................................................................11 3.2 Menu Operations....................................................................................................................12 3.2.1 Image...........................................................................................................................12 3.2.2 Application Scenario...................................................................................................12 3.2.3 Display........................................................................................................................12 3.2.4 Settings........................................................................................................................13 4. Faults and Troubleshooting..............................................................................................................15 Warnings, Cautions and Notes Warnings, cautions, and notes may be found in this document. They are defined as follows:

Warnings Alert you to potentially hazardous situations, and conditions, practices or procedures that users must follow, so as to avoid serious injury and death. Cautions Alert you to potentially hazardous situations, and conditions, practices or procedures that users must follow, so as to avoid moderate injury and equipment damage. Notes Provide basic information that helps you better use or operate the product. 1. Device Information and Description 1.1 Device Information Device model and name:

J-YM Monocular head mounted thermal imager Device use:

J-YM is a multi-functional monocular thermal imaging device, which can be used for observation and target search under night, dim, dark, bad weather and complex scene conditions. Featuring a compact size, light weight, low power consumption, and long battery life, it can be helmet-mounted or handheld. It is suitable for enforcement, outdoor hunting, wilderness exploration, search and rescue and other fields. J-YM packing list: monocular head mounted thermal imager body, helmet adapter bracket, L4G24 helmet bracket, battery charger, cable, and user manual, lens wiping cloth. J-YM packing list:

No. Component 1 2 3 4 5 6 7 8 Thermal imager device body Helmet adapter bracket Helmet bracket Type-C cable User manual Lens wiping cloth Portable bag Waterproof case Figure 1.1 J-YM Packing List

Components and their function descriptions of the J-YM monocular head mounted thermal imager device body:

No. Component Function Description 1 button button button In the menureturns to the Press previous option/increases the value. Out of menudigital zoom In the menuno function Out of menuswitch image polarity In the menu confirm Out of menu no function In the menuno function Out of menu On/Off Press and hold Press Press and hold In the menu moves to the next Press option/decreases the value. Out of menu image capture Press and hold In the menuno function Out of menuvideo capture Type-C interface Eyepiece Objective lens Mounting interface Battery compartment Connects the cable, external USB serial port and analog video interface. diopter adjustment knob Adjusts the focal length of the objective lens. Head-mounted adapter bracket interface Adapts to 18650 batteries after battery cap is installed. 2 3 4 5 6 7 8

Figure 1.2 Components of the J-YM Monocular head mounted thermal imager Device Body 1.2 Device Specifications Device Specifications Parameters Pixel Pitch Resolution Frame Rate Display Focal Length of Objective Lens FOV Visual Amplification Diopter Adjustment Exit Pupil Distance Polarity Thermal Optical Display YM316 Value 12 m YM627 384*288 640*480 50 Hz 1024 768 OLED 16mm/F1.0 26.7mm/F1.0 16.3 X 12.3 1 x

-5, +2

>20mm Black hot, White hot, color palettes, Iron

Mode Mode Default, Outdoor, Arctic, Rainforest Digital Zoom 1x2x3x4x 1x2x4x6x8x Functions Power Weight &

Volume DMC Wi-Fi image transmission Video/Image Capture Battery Max Battery Life

(Wi-Fi disabled) Weight (w/o battery) Dimension

(mm) Mounting Type Encapsulation Rating Operating Temperature Range Environment al Requirement External Interfaces Azimuth, Pitch, Roll Support Support 1 x 186503.7V 7h 6h

< 300g 113 x 70 x 48 Handheld, head-mounted IP67

-10 --- 50 Type-C power supply, serial port, analog video output Recognition Distance Specifications:

Target Type Human target 1.7m0.5m Vehicle target 4.6m2.3m Identification Recognition Detection Identification Recognition Detection Distance YM316 YM627 190m 370m 1200m 250m 510m 1500m 310m 630m 1800m 425m 850m 2500m

2. Assembly and Power-on for Use 2.1 Assembly/Disassembly There are two use methods of J-YM: handheld and helmet-mounted. Different use methods need to correspond to the specified accessories and mounting methods. The battery needs to be installed first before any use. 2.1.1 Installing the Battery J-YM supports 18650 battery with protective boardbattery diameter 180.5mm, length 690.5mm Note: confirm the battery polarity before installation, the incorrect installation may lead to boot problem or device damage. Figure 2.1 J-YM 18650 Battery Installation Diagram 2.1.2 Handheld Use J-YM is for handheld use by default and requires no other accessories. You can use it directly after installing the battery. 2.1.3 Helmet-mounted Use For helmet-mounted use, after installing the battery, you need to install the helmet adapter bracket. The installation steps are as follows:

1 Take out the helmet adapter bracket, and fix the screw on the adapter bracket into the middle screw hole of the thermal imager device mounting interface. 2 Install the device with the helmet adapter on L4G24 standard helmet bracket. 3 Adjust L4G24 bracket and adapter to the optimal observation position.

Caution: In helmet-mounted use, you need to operate the menu in the device to flip the screen. Step 1 Step 2 Step 3 Figure 2.2 J-YM Installation Diagram for Helmet-mounted Use

2.2 Power-on for Use Remove the lens hood before powering on the device, and press and hold the On button for 3s. The startup screen indicating that the device is being initialized will be displayed and the image will be displayed after shutter correction.

3. Operating Instructions 3.1 Home Screen Operations 3.1.1 Home Screen Display The information displayed on the home screen of J-YM includes the infrared image, time, battery level, azimuth information, pitch angle information, roll angle information, digital zoom amplification, image polarity, reticle (displayed after being set in the menu), and PIP (displayed after being set in the menu). J-YM Home Screen Display Description Icon Azimuth compass Displays W, NW, N, NE, E, SE, S, and SW azimuths and angles. Wi-Fi icon Display Wi-Fi on/off status Displays four bars when the battery is fully charged and turns red when the battery level is less than 10%. Is not displayed by default and can be displayed after being set in the menu.

-90 ~ 90

-90 ~ 90 Can be displayed after being set in the menu. The default mode is full-screen digital zoom. BlackHot, WhiteHot, Color Palettes, Iron Video capture prompts icon Image capture prompts icon Display digital zoom magnification Battery level Reticle Pitch angle Roll angle PIP digital zoom Image polarity Video capture icon Image capture icon Digital zoom amplification No. 1 2 3 4 5 6 7 8 9 10 11

Figure 3.1 J-YM Home Screen Main functions of J-YM buttons No. Component Function Description In the menureturns to the Press previous option/increases the value. button Press and hold button Press Out of menudigital zoom In the menuno function Out of menuswitch image polarity In the menu confirm Out of menu no function 1 2

Press and hold In the menuno function Out of menu On/Off In the menu moves to the next Press option/decreases the value. Out of menu image capture Press and hold In the menuno function Out of menuvideo capture 3 button 3.1.2 Digital Zoom In the home screen, short press the button to display the digital zoom image. The device defaults to full-screen digital zoom. J-YM supports 1.08.0 digital zoom, image centered 1/2/4/6/8 amplification. 3.1.3 Polarity Switching In the home screen, press and hold the button to switch image polarities among WhiteHot, BlackHot, Color Palettes, and Iron cyclically. 3.1.4 Manual Image Correction In the home screen, when the infrared image is blurred, degraded, uneven, or with halos, manual shutter correction is required. Press the + button simultaneously for 1s to manually correct the shutter. You can hear the shutter click during the correction. The correction time is less than 1s. 3.1.5 Image Capture In the home screen, press button to capture an image, the image capture icon will be displayed on the left side of the interface during image capture, the captured image will be named by the current time and saved. 3.1.6 Video Capture In the home screen, press button to capture a video, the video capture icon will be displayed on the left side of the interface during image capture, the captured image will be named by the

current time and saved, the max duration is 30min. 3.2 Menu Operations In the home screen, short press button to enter the menu mode. In the menu mode, you can set the image, display, device settings and select application scenarios. 3.2.1 Image Figure 3.2 Main Menu Brightnessset the screen brightness to 1-10and the default value is 5. Contrast set the image contrast to 1-10and the default value is 5. 3.2.2 Application Scenario Application Scenario can be Default, Outdoor, Arctic, or Rainforest. Specifically, Default is the initial mode; Outdoor is mainly suitable for environments with fewer outdoor thermal targets to highlight thermal targets; Arctic is suitable for scenes with low ambient temperature, like winter;

Rainforest is suitable for scenes with high ambient temperature and high humidity. 3.2.3 Display Display allows setting options like DMC, Menu Flip, PIP, Reticle Display, Reticle Color and Reticle Movement.

DMC allows setting the compass information and whether to display the pitch angle and roll angle. By default, they are displayed. Menu Flip allows setting the display status of the menu, handheld use by default, that isthe image interface is normal when the buttons are facing up . For head-mounted use, you can switch the menu direction by enabling menu flip to ensure that it is consistent with the direction of use, this function is disabled by default. PIP allows setting the display mode of the image. The default is Full-screen, and PIP can be selected. When PIP is selected, it will be overlaid on the bottom of the display. Reticle Display allows displaying or hiding the reticle. When the reticle is displayed, the color and position of the reticle can be set. Reticle Color can be set to White, Black, or Green. Reticle Move can be set to Default, Horizontal, or Vertical. If Default is selected, the position of the reticle will be reset to the center of the image. If Horizontal or Vertical is selected, the reticle will move horizontally or vertically. The move value ranges from 100 to 100, and each move value represents a pixel. 3.2.4 Settings Settings allows calibrating the device, restoring factory settings, etc., which includes Wi-Fi, Date and Time, DMC Calibration, Analog Video, Type-C Mode, Calibration Mode, Factory Reset, Accumulated Service Time and Product SN. Wi-Fienable or disable Wi-Fidisable by defaultThe Wi-Fi icon will be displayed on the home interface when Wi-Fi is enabled. The access point named XWIFI_XXXXX will be found via mobile phone or other mobile devices after about 10s when Wi-Fi is enabled, the password is 12345678 by default. You can observe or capture image/video via App after Wi-Fi is successfully connected. Note: please contact the supplier for App. DMC Calibration: mainly calibrate the accuracy of the compass indication. You are recommended to perform an azimuth calibration when using the device for the first time or in a

different place. After entering Azimuth Calibration, you can view the calibration instructions. Specifically, horizontally rotate the device 360 around itself, click Start to start the rotation, and click OK after the rotation is completed. PAL Videoallows turning on/off the output of analog video, disabled by default. You can observe the image on the monitor by connecting the Type-C interface on the device to the BNC connector on the monitor with the cable in the package. Note: The power consumption will be increased after PAL video output is enabled. Serial Port Modeswitch between serial port and OTG mode, realize debugging by connecting Type-C connector with serial port and OTG video and image reading, OTG Mode by default. Under OTG mode, the Camera icon will be displayed on the PC after connecting with PC via USB interface on the cable, then the image and video in the device can be read. Note: The device Wi-Fi needs to be enabled when exporting images and videos via cables. Under serial port debugging mode, after the device is connected with PC via USB connector on the cable, a serial port will be displayed on the PC, then the user can update and debug via client software. Note: To avoid device damage, the device needs to be updated via client software under professional guidance. Correction Settings: allows setting the shutter correction time interval. Auto indicates that the device will perform auto shutter correction according to environmental situations. Manual indicates the user needs to perform shutter correction manually. 1-10 indicates that the shutter correction will be performed according to fixed time interval. Unit: minute. Factory Reset allows restoring factory settings. If required, you can select this option and click OK to restore the device data to factory defaults and quit all menus. Accumulated service time: display accumulated service time. Note: The factory reset will not clear the service time of the device. SNdisplay product serial number.

4. Faults and Troubleshooting Table 4.1 lists common faults of J-YM during use. Please check and fix the faults according to the steps listed in Table 4.1. You need to check whether the faults are fixed after troubleshooting. Not all possible faults are listed in Table 4.1. If the unlisted faults occur in J-YM or the faults cannot be fixed upon troubleshooting, please perform the higher level maintenance. No. Faults Test or Check Troubleshooting Table 4.1 J-YM Troubleshooting

(a) Check whether the battery is installed

(a) Reinstall the battery. in the correct direction.

(b) Clean the threads of

(b) Check whether there are sundries or the battery cover and scraps around the knob of the battery battery compartment. Unable to cover. screw or open

(c) Check whether the battery cover is 1 the cover of the damaged, worn or deformed. battery compartment

(d) Check whether the battery compartment is damaged or deformed.

(e) Check whether the battery size conforms to the requirement

(180.5mmlength: 690.5mm)

(c) Perform the higher level maintenance.

(d) Perform the higher level maintenance.

(e)Change 18650 battery conforming to standard 2 Unable to power on

(a) Check whether the battery is installed,

(a) Replace the old battery whether its direction is correct, and with a new one and install whether its power is sufficient. it correctly according to

(b) Check whether the On/Off button can the instructions in Chapter be pressed normally. 2.

(b) Perform the higher level maintenance.

(a) Check whether the lens hood is

(a) Remove the lens hood removed and whether the focal length is and adjust the objective appropriate. lens focusing knob.

(b) Check whether the objective lens is

(b) Remove the barriers. blocked during operation.

(c) Perform the higher

(c) Check whether the lens is damaged. level maintenance.

(d) Long press the button to perform

(d) Perform the higher manual shutter correction. level maintenance if the Unable to 3 display the image

fault persists. FCC Warning 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, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help. The SAR limit adopted by USA is 1.6 watts/kilogram (W/kg) averaged over one gram of tissue. The highest SAR value reported to the Federal Communications Commission (FCC) when it is tested for use at the body is 1.08W/kg, and the head is 0.015W/kg. The device complies with the RF specifications when the device is used near your head or at a distance of 0 mm from your body. Ensure that the device accessories such as a device case and a device holster are not composed of metal components.

CTC Laboratories, Inc. 1-2/F., Building 2, Jiaquan Building, Guanlan High-Tech Park, Shenzhen, Guangdong, China Tel: +86-755- 27521059 Fax: +86-755- 27521011 Http://www.sz-ctc.org.cn Label Label Location 1. Page 1 of 1

IRay Technology Co., Ltd. Date: 2023.02.07 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AYGT-JYM Product Name: Monocular Head Mounted Thermal Imager Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:

(List here the documents for which you are seeking confidentiality for example ) Schematics Block Diagram Operation Description Parts List These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Signature:

Name: Peng Zhang Company: IRay Technology Co., Ltd. Address: 11GUIYANG STREET, YANTAI ECONOMY AND TECHNOLOGY DEVELOPMENT DISTRICT, YANTAI Shandong P.R. China Phone: 18562243217 E-Mail: pzhang@iraytek.com

IRay Technology Co., Ltd. Covered Equipment Certification Attestation Letter 2/7/2023 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: 2AYGT-JYM IRay Technology Co., 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not covered equipment. IRay Technology Co., 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. Signed:

Printed name: Peng Zhang Title: : Quality supervisor Company Name: IRay Technology Co., Ltd. Date: 2/7/2023

IRay Technology Co., Ltd. U.S. Agent Designation for Service of Process -

Certification Attestation Letter 2/7/2023 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: 2AYGT-JYM Per section 2.911(d)(7) of the FCC rules, IRay Technology Co., Ltd. (the applicant) certifies that the equipment for which authorization is sought is designated to the following U.S. agent*

for service of process:

Company Name: Visir Inc. Physical U.S. Company Address: 39899 Balentine Drive STE 200, Newark, CALIFORNIA, 94560, USA Agent name: Tao Huang Agent Email Address: thuang@visirinc.com FRN: 0032684243 The above contact person accepts the obligation for service of process. The applicant 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. Applicant Signed:

Agent Signed (if different to Applicant):

Signed:

Printed name: Peng Zhang Title: Quality supervisor Company Name: IRay Technology Co., Ltd. Date: 2/7/2023 Signed:

Printed name: Tao Huang Title: President Company Name: Visir Inc. Date: 2/9/2023

* the applicant must designate a contact located in the United States for purposes of acting as the applicants agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process.