FCC ID: 2AZ3J-B10 Bluetooth Beacon

E15 Environmental Sensor INSTALLATION MANUAL sales@rhombus.com 1919 19th St Sacramento, CA 95811 1

|E15 OVERVIEW The Rhombus E15 proactively detects changes in temperature and humidity. With its long-lasting battery, the E15 broadcasts to all nearby BLE-enabled Rhombus devices and can monitor fluctuations in temperature and humidity in climate-controlled areas to protect valuable assets. PACKAGE CONTENTS Specifications Dimensions Power Temperature Measurement Humidity Measurement Estimated Battery Life Weather Resistance 70x32.2x18.2mm (2.75x1.26x0.72in) 2x 1.5V AAA Lithium, replaceable (2x Lithium Batteries Included) 0.3C (0C to 60 C), 0.5C (-20C to 0C) 4.5% (0% - 10% RH), 3% (10% - 90% RH), 3.8% (90% - 95% RH) 5 years with typical medium-heavy use IPX4 Button LED Temperature and Humidity Sensor LED Indicators Pulsing Green LED off Pulsing Red Solid Red E15 waiting to be registered E15 registered and operating normally Hard Reset required (remove and re-install battery) Hardware Error (Contact Support) sales@rhombus.com 1919 19th St Sacramento, CA 95811 2 Last Revised: 7/11/2023

|E15 Installing the Battery Remove the battery cover located on the back of the E15. Insert the included 1.5V AAA Lithium batteries into the device and close the battery cover. 1.5V AAA Mounting the E15 Fix the E15 to the desired surface using the mounting adhesives provided. It is recommended that the E15 is installed in direct line of sight with a BLE-

enabled Rhombus camera to reduce connectivity issues. WARNING: Improper installation may result in inaccurate or faulty sensor responses. sales@rhombus.com 1919 19th St Sacramento, CA 95811 3 Last Revised: 7/11/2023

|E15 Installation Best Practices To reduce the likelihood of E15 sensing errors or connectivity issues, the following points must be followed:

Have a BLE-enabled Rhombus device in direct line of sight with the E15 to increase signal strength. Avoid RF-blocking obstacles: This includes mounting the E15 inside a freezer, fridge, behind a metal door, etc. Avoid mounting the E15 near a source of heat (e.g., on the output vent of an AC/HVAC system, near exhaust vent, etc.). Ensure sensor intake panel is not covered or blocked by surrounding objects. HVAC vent vent Refrigerator vent Registration The E15 must be awakened from sleep mode to be registered into the rhombus console. There are several ways to wake the device for registration:

Press the button on the E15. Re-Insert battery into the E15. The E15 LED will pulse green when waiting to be registered and will stay awake for two (2) minutes before going back into sleep mode. Button Follow the instructions on the registration page to complete product registration. For additional information on registering the E15 into the rhombus console, please visit:

www.rhombus.com/setup/e15 sales@rhombus.com 1919 19th St Sacramento, CA 95811 4 Last Revised: 7/11/2023

|E15 Notes Supplemental Info For additional information and recommendations on setting up the E15, please visit:

https://support.rhombussystems.com/hc/en-us/articles/14921970592141-Registering-the-E15 For a product overview and additional E15 sensor specifications, please visit:

https://www.rhombus.com/sensors/environmental-monitoring/e15 Support For questions or troubleshooting support, contact Rhombus support at help@rhombus.com or submit a request online at: https://support.rhombussystems.com/hc/en-us/requests/new sales@rhombus.com 1919 19th St Sacramento, CA 95811 5 Last Revised: 7/11/2023

|E15 Notes E15 Compliance FCC Compliance Statement FCC ID: 2AZ3J-B10 1. 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. 2. 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. RF warning statement:

To maintain compliance with FCCs RF Exposure guidelines, This equipment should be installed and operated with minimum distance 20cm between the radiator and your body: Use only the supplied antenna. IC Compliance Statement This device contains license-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas license-exempt RSS(s). Operation is subject to the following two conditions:

(1) This device may not cause interference; and

(2) This device must accept any interference, including interference that may cause undesired operation of the device. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. RF exposure statement:

The equipment complies with IC Radiation exposure limit set forth for uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. Cet appareil contient des metteurs / rcepteurs exempts de licence conformes aux RSS (RSS) d'Innovation, Sciences et Dveloppement conomique Canada. Le fonctionnement est soumis aux deux conditions suivantes:

(1) Lappareil ne doit pas produire de brouillage, et

(2) lutiliateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement Tout changement ou modification non expressment approuv par la partie responsable de la conformit pourrait annuler l'autorit de l'utilisateur utiliser l'quipement. Dclaration d'exposition RF:

L'quipement est conforme la limite d'exposition aux radiations de la IC tablie pour un environnement non contrl. Cet quipement doit tre install et utilis avec une distance minimale de 20cm entre le radiateur et votre corps. sales@rhombus.com 1919 19th St Sacramento, CA 95811 6 Last Revised: 7/11/2023

label size:2*2cm

[SERIAL NUMBER BARCODE]

Bluetooth Beacon MODEL: E15 FCC ID: 2AZ3J-B10 IC: 27286-B10 HVIN:E15 Label location:

Rhombus Systems, Inc Section 2.911(d)(5)(i) Certification Equipment Type Company name: Rhombus Systems, Inc Address: 1920 20th Street Sacramento,CA 95811 Product Name: Bluetooth Beacon FCC ID: 2AZ3J-B10 Model(s): B10, E15 2.911(d)(5)(i) Equipment Type We, [Rhombus Systems, Inc] certify that the equipment for which authorization is sought through certification is not:

Prohibited from receiving an equipment authorization pursuant to 2.903; of the FCC rules. Identified as an equipment type in the Covered List NOTE 1 Yours sincerely, Signature:

Name: Dave Gustafson Date:

2023.7.13 Title and Company name:

VP of Hardware/ Rhombus Systems Inc. NOTE 1 Covered List; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References;

1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(i) Equipment Type Attestation v1.2

Rhombus Systems, Inc Section 2.911(d)(5)(ii) Certification Applicant (Covered List) Company name: Rhombus Systems, Inc Address: 1920 20th Street Sacramento,CA 95811 Product Name: Bluetooth Beacon FCC ID: 2AZ3J-B10 Model(s): B10, E15 2.911(d)(5)(ii) Applicant filing We, [Rhombus Systems, Inc] certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the Covered List NOTE 2, established pursuant to 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Signature:

Name: Dave Gustafson Date:

2023.7.13 Title and Company name:

VP of Hardware, Rhombus Systems Inc. NOTE 1 Delete option not applicable to this application. NOTE 2 Covered List; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References;

1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(ii) Applicant Attestation v1.2

Rhombus Systems, Inc Section 2.911(d)(7) USA Agent for Service of Process Company name: Rhombus Systems, Inc Address: 1920 20th Street Sacramento,CA 95811 Product Name: Bluetooth Beacon FCC ID: 2AZ3J-B10 Model(s): B10, E15 2.911(d)(7) USA Designated Agent for Service of Process We, [Rhombus Systems, Inc] designate [Rhombus Systems, Inc] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent: We Acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledge our acceptance of our obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Agent obligation: We Acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. 2.911 (d)(7)USA Agent v1.2 Rhombus Systems, Inc USA Agent Company name: Rhombus Systems, Inc Address: 1920 20th Street Sacramento,CA 95811 Applicant Company name: Rhombus Systems, Inc Address: 1920 20th Street Sacramento,CA 95811 FRN0030968606 Contact Name:Dave Gustafson Telephone No: +1-650-269-7258 Email:dave@rhombussystems.com FCC Grantee Code: 2AZ3J Contact Name: Dave Gustafson Telephone No: +1-650-269-7258 Email: dave@rhombussystems.com Signature:

Title: VP of Hardware Date: 2023.7.17 Signature:

Title: VP of Hardware Date: 2023.7.17 NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the 2.911 (d)(7)USA Agent v1.2

Rhombus Systems, Inc Agent Authorization Company name: Rhombus Systems, Inc Address: 1920 20th Street Sacramento,CA 95811 Product Name: Bluetooth Beacon Model Number(s): B10, E15 Product Description: Bluetooth Beacon We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required 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. Signature:

Date: 2023.7.3 Name:

Dave Gustafson Title:

VP of Hardware Company: Rhombus Systems, Inc

Rhombus Systems, Inc Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2AZ3J-B10 Date: 2023.7.13 To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name:Dave Gustafson Title: VP of Hardware

Rhombus Systems, Inc Model difference statement It is hereby declared that the product Product Name: Bluetooth Beacon Model: E15, B10 FCC ID: 2AZ3J-B10 Trade Mark: /

The B10 does not have a temperature and humidity sensor, while the E15 has a temperature and humidity sensor. The appearance is slightly different, and the different model names are for the market demand. Other power supply methods, internal structure, circuit and key components are the same, do not affect the safety and electromagnetic compatibility performance,The main test model is E15.

, Sincerely Signature:

Name:

Dave Gustafson Title:

VP of Hardware Company: Rhombus Systems, Inc Date: 2023.7.13 version01