2AZ4UGMX-GAS-SAFEGEOZIEL-AIR

GEOMEXSOFT Ltd. Product Manual Document No. GMX-CO_SAFE -BT_WIFI Enacted/Revi sed No. 0 Geoziel Indoor Carbon Monoxide Detector (Version with Communication Function ) Revision Date May 14, 2021 Page 1 1. Product Description The Geoziel Indoor Carbon Monoxide Detector developed and manufactured by our company is a product equipped with an alarm function that can prevent fatal accidents and gas explosion accidents caused by carbon monoxide poisoning by measuring carbon monoxide gas in indoor air more easily with a semiconductor gas detector. 2. Product Main Function 2.1 Precise detection of carbon monoxide The product accurately measures carbon monoxide generated in everyday life between 10PPM and 1000PPM. <CO Sensor SPEC> Characteristics of sensitivity (β) (Rs,gas / Rs,air -CO(10PPM) 0.75≤ β ≤ 0.85, CO(100PPM) 0.30≤ β ≤ 0.60 -Tobacco(2,000ppm-ESSE, KOREA) β ≤ 0.6 -Ethyl alcohol vapor (50ppm) β ≤ 0.50 (Sample is gathered by using injector(10㎖) 10mm/sec speed) Operating environment -Temp. : -10 ~ 50°C, Humidity : 5 ~ 90%RH, Non-condensing -Storage Æ Temp. : -10 ~70°C, Humidity : 0 ~90%RH Reaction time(T90) -Recovering Time(T90) : Less then 30sec 2.2 Danger Alarm (1) When the carbon monoxide measurement value rises above a certain level, the product provides an immediate alarm to the user by using the built-in 85dB alarm buzzer and lamp. (2) When the value measured by the built-in temperature sensor lasts more than 50°C for more than one minute, the product judges it as a high-temperature condition and provides an immediate alarm to the user. 2.3 Built-in Battery (1) The product has a built-in 2000mah rechargeable lithium-ion battery in 3.7V 1 cell type and can be used continuously for up to eight hours. (2) The product can be charged and reused through a micro USB-C connector. GEOMEXSOFT Ltd. Product Manual Document No. GMX-CO_SAFE -BT_WIFI Enacted/Revi sed No. 0 Geoziel Indoor Carbon Monoxide Detector (Version with Communication Function ) Revision Date May 14, 2021 Page 2 2.4 Bluetooth communication Function Support (1) The product supports the communication function based on Bluetooth v4.2 BR/EDR BLE and allows the user to check the operation information such as sensor measurement value and battery level on a smartphone through its dedicated application. The user can use the bluetooth wireless communication function through its dedicated software on a smartphone with Android 4.0 or higher, and this function may not be able to operate normally due to the technical characteristics, such as interference and external noise. 3. Product Specification Table Product Performance - Measurement of carbon monoxide (CO) and alarm in the event of a danger situation - Measurement of high temperature situation and alarm Power - Built-in rechargeable lithium-ion battery (up to eight hours of continuous use time) - Charging the battery using the USB-C connector with 5V, 1A and higher (5.5 hours of full charge time) Alarm - Alarm of 85dB (30cm distance from the product) Bluetooth - Using the dedicated application on smartphones with Android 4.0 or higher - Real-time confirmation of sensor measurement value and alarm control function 4. Precautions The product is a detector equipped with semiconductor-type carbon monoxide sensors and it has different detection performance depending on the usage environment. The normal operation may not be possible in the following situation: ➀ High pollution that lasts for a long time (volatile gas, etc.); ➁ Battery low power state; and ➂ A situation where the product has been exposed for a long time in the indoor environment with a continuous high temperature of 40°C or higher. GEOMEXSOFT Ltd. Product Manual Document No. GMX-CO_SAFE -BT_WIFI Enacted/Revi sed No. 0 Geoziel Indoor Carbon Monoxide Detector (Version with Communication Function ) Revision Date May 14, 2021 Page 3 5. Product Configuration (1) Product Configuration Diagram (2) Product Structure Description GEOMEXSOFT Ltd. Product Manual Document No. GMX-CO_SAFE -BT_WIFI Enacted/Revi sed No. 0 Geoziel Indoor Carbon Monoxide Detector (Version with Communication Function ) Revision Date May 14, 2021 Page 4 6. How to Use the Product ➀ How to turn on and off the product >Press the power button on the front of the product for a long time until the product turns on. >When the product is turned on, the state and operation indicator lamp lights up in white along with the melody. >After the sensor stabilization time for 30 seconds, the sensor starts to detect. During this time, the white LED lamp lights up and the button operation is deactivated. >If you press the power button for more than three seconds during the operation, the operation is turned off along with the off melody. ➁ Product Operation Situation >After 30 seconds of the operation, the product starts to detect gas and measure temperature. At this time, the status and operation indicator lamp in the middle lights up in green every 4 and 5 seconds. ➂ Sensor Operation Situation >When the status indicator lamp light up in yellow, it displays that the concentration of carbon monoxide is cautious. Therefore, you need to adequately ventilate the room. >When the status indicator lamp light up in red, it displays that the concentration of carbon monoxide is high. Therefore, you must adequately ventilate the room. >When both the status indicator lamp and the warning indicator lamp light up in red, they indicate that the concentration of carbon monoxide is a very dangerous condition. Therefore, you must immediately ventilate the room or leave the area. *At this time, a warning buzzer sounds. *However, the buzzer operates 3 minutes after the operation. GEOMEXSOFT Ltd. Product Manual Document No. GMX-CO_SAFE -BT_WIFI Enacted/Revi sed No. 0 Geoziel Indoor Carbon Monoxide Detector (Version with Communication Function ) Revision Date May 14, 2021 Page 5 ④ Power Situation >When the status indicator lamp flashes blue periodically, it displays that the product needs to be charge…

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GEOMEXSOFT Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: June 21, 2021 Subject; Request for Confidentiality FCC ID: 2AZ4UGMX-GAS-SAFE To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure indefinitely. Schematic Diagram Block Diagram Part List Operational Description Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. In additional to above mentioned documents, pursuant to Public Notice DA 04-1705 of the Commission' s policy, in order to comply with the marketing regulations in 47 CFT §2.803 and the importation rules in 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices. We are requesting the commission to grant shot-term confidentiality request on the following attachment(s) for 180 days after the grant as outlined in Public Notice DA 04-1705. External Photos Internal Photos Test Setup Photos User Manual It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Name: Bomuk, Kim Title: Research Enginner

Letter of Authorization Company : GEOMEXSOFT Co., Ltd. Address : #305, 306, 307, GIMC, 882 BAKSA-RO SEO-MYEON, CHUNCHEON-SI, GANGWON-DO KOREA Product Name Model Number FCC Identifier : GEOZIEL-AIR : GMX-GAS_SAFE-BT_WIFI : 2AZ4UGMX-GAS-SAFE We authorize MiCOM Labs Inc, 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the above named equipment. Any individual within MiCOM Labs is authorized to act on our behalf and take action on the application. We declare that MiCOM Labs Inc, 575 Boulder Court, Pleasanton, California 94566, USA, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Name: Bomuk, Kim Date: June 21, 2021 Title: Research Enginner Signature of applicant:

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Page 1 of 17 Report No.: OT-215-RED-145 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-EMC-004(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) FCC 47 CFR PART 15 SUBPART B TEST REPORT Test Report No. : OT-215-RED-145 Reception No. : 2104002308 Applicant : GEOMEXSOFT Co., Ltd. Address : #305, 306, 307, GIMC, 882 BAKSA-RO SEO-MYEON, CHUNCHEON-SI, GANGWON- DO KOREA Manufacturer : GEOMEXSOFT Co., Ltd. Address : #305, 306, 307, GIMC, 882 BAKSA-RO SEO-MYEON, CHUNCHEON-SI, GANGWON- DO KOREA Type of Equipment : GEOZIEL-AIR Model Name : GMX-GAS_SAFE-BT_WIFI FCC ID. : 2AZ4UGMX-GAS-SAFE Multiple Model Name : N/A Serial number : N/A Total page of Report : 17 pages (including this page) Date of Incoming : May 12, 2021 Date of Issuing : May 26, 2021 SUMMARY The equipment complies with the requirement of FCC CFR 47 Part 15 Subpart B. This test report contains only the results of a single test of the sample supplied for the examination. It is not a general valid assessment of the features of the respective products of the mass-production. Reviewed by: Approved by: Eung-Chan, Kim / General Manager ONETECH Corp. Gea-Won, Lee / Exe. Managing Director ONETECH Corp. Page 2 of 17 Report No.: OT-215-RED-145 It should not be reproduced except in full, without the written approval of ONETECH Corp. OTC-TRF-EMC-004(0) ONETECH Corp.: 43-14, Jinsaegol-gil, Chowol-eup, Gwangju-si, Gyeonggi-do, 12735, Korea (TEL: 82-31-799-9500, FAX: 82-31-799-9599) CONTENTS Page 1. VERIFICATION OF COMPLIANCE ............................................................................................................................. 4 2. TEST FACILITY ............................................................................................................................................................... 5 3. PRODUCT INFORMATION ............................................................................................................................................ 6 3.1 DESCRIPTION OF EUT .................................................................................................................................................... 6 3.2 MODEL DIFFERENCES .................................................................................................................................................... 6 3.3 SUPPORT EQUIPMENT .................................................................................................................................................... 6 3.4 SYSTEM CONFIGURATION .............................................................................................................................................. 6 3.5 CABLE DESCRIPTION ..................................................................................................................................................... 6 3.6 EQUIPMENT MODIFICATIONS ........................................................................................................................................ 6 4. DESCRIPTION OF TESTS .............................................................................................................................................. 7 4.1 TEST METHODOLOGY .................................................................................................................................................... 7 4.2 TEST CONDITION ............................................................................................................................................................ 7 4.3 CONDUCTED EMISSION .................................................................................................................................................. 8 4.4 RADIATED EMISSION ...................................................................................................................................................... 8 5. FINAL RESULT OF MEASUREMENT ......................................................................................................................... 9 5.1 CONDUCTED EMISSION TEST ......................................................................................................................................... 9 5.1.1 Operating Environment .......................................................................................................................................... 9 5.1.2 Test Setup ................................................................................................................................................................ 9 5.1.3 Measurement uncertainty ....................................................................................................................................... 9 5.1.4 Limit ........................................................................................................................................................................ 9 5.1.5 Test Equipment used ............................................................................................................................................... 9 5.1.6 Test Data ............................................................................................................................................................... 10 5.2 RADIATED EMISSION TEST .......................................................................................................................................... 12 5.2.1 Operating Environment ........................................................................................................................................ 12 5.2.2 Test Setup .............................................................................................................................................................. 12 5.2.3 Measurement uncertainty .......................................................................................…

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Page 2 of 4 Report No.: OT-215-RED-145 Conducted Disturbance Test Set Up Page 3 of 4 Report No.: OT-215-RED-145 Radiated Emission Test Set Up (Below 1 GHz) Page 4 of 4 Report No.: OT-215-RED-145 Radiated Disturbance Test Set Up (Above 1 GHz)