2AFTLSV1Digital Transmission System

QUICK START GUIDE 5 min 2 min Our app will guide you through the complete install, step by step. Use your mobile device. Search for "Ecovent" Use the included tablet. It comes pre-loaded with the Ecovent app. Connect the smart hub to your home's WiFi router using the included ethernet cable. Then plug in the power cord and you’re good to go. Installing vents and sensors happens one room at a time. If you already have a Nest thermostat installed. If you purchased a Sensi™ thermostat through Ecovent and need to install it 2 1 34 5 min 15 min per room 20-45 min SETUP THERMOSTAT CONNECT HUB LAUNCH APP ROOM-BY-ROOM INSTALL Need help? Email us at [email protected] or call us at XXX-XXX-XXXX Included Changes or modifications not expressly approved by Ecovent could void the user’s authority to operate the equipment. 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 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.” WARNING! This equipment complies with FCC’s and IC’s RF radiation exposure limits set forth for an uncontrolled environment under the following conditions: This equipment should be installed and operated such that a minimum separation distance of 20cm is maintained between the radiator (antenna) & user’s/nearby person’s body at all times. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. THIS ECOVENT PRODUCT CONTAINS OPEN SOURCE SOFTWARE. FOR LICENSING, COMPLIANCE, AND OTHER IMPORTANT INFORMATION, PLEASE VISIT HTTPS://WWW.ECOVENTSYSTEMS.COM/PRODUCT-INFO.

Request for Confidentiality for FCC 09/07/15 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046-1609 Curtis-Straus LLC TCB One Distribution Center Circle, #1 Littleton, MA 02702 Re: Confidentiality Request Gentlemen: This letter is to comply with 47 CFR 0.457(d)(2) pertaining to confidential material. Ecovent requests that the following documents regarding this submission for FCC ID: 2AFTLSH1, 2AFTLSS1, and 2AFTLSV1 be kept confidential: 1. Schematics 2. Block Diagram 3. Circuit/Technical Description The material above contains technical data, which would customarily be guarded from competitors. Pursuant to Public Notice DA 04-1705, Ecovent requests SHORT-TERM CONFIDENTIALITY for the following information until 180 days after the grant date of equipment authorization in order to ensure sensitive business information remains confidential until marketing of the device: External Photos Internal Photos Test Setup Photos User’s Manual Sincerely, _______________________ Robert Kim Director of Electrical Engineering 09/07/15

Letter of Agency for FCC 09/07/15 Agent’s Authorization Letter I, an officer of Ecovent, do hereby authorize, until further notice, Chris Reynolds of Curtis-Straus LLC, One Distribution Center Circle, #1, Littleton, MA 01460, to act on our behalf in dealings before the Federal Communications Commission with respect to all matters relating to equipment authorizations under 47 CFR. This authorization includes, but is not limited to, the signing of Form 731. I certify that no party (as defined in 47 CFR 1.2002) to this application, including myself, is subject to a denial of federal benefits, that include FCC benefits, pursuant to section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C., 853A. Certified By: _______________________ Robert Kim Director of Electrical Engineering 09/07/15

2.24 1.24 0.10 0.10 1 1 0.10 0.10 1.33 1.2 0.10 0.10 LABEL SIZE A3 SHEET 1 OF 1 SCALE:1:2 PART NO. TITLE: DO NOT SCALE DRAWING. WORK TO DIMENSION NOTICE: CHANGES TO MATERIAL, DESIGN, CONFIGURATION OR PROCESS MAY NOT BE MADE WITHOUT NOTIFICATION TO ECOVENT. ALL MATERIALS AND PROCESSES MUST BE COMPLIANT WITH ENVIRONMENTAL LAWS AND REULATIONS AS REFERENCED IN XXXXX THIS DOCUMENT IS THE PROPERTY OF ECOVENT. NEITHER THIS DOCUMENT NOR ANY INFORMATION CONTAINED HERIN MAY BE USED, REPRODUCED OR DISCLOSED TO THIRD PARTIES WITHOUT ECOVENT WRITTEN CONSENT. IF PLATING IS SPECIFIED, ALL DIMENSIONS TO BE MET AFTER PLATING UNLESS OTHERWISE SPECIFIED. DIMENSIONS=0.015 1. PERMISSIBLE TOLERANCES ANGLES=1 2. ALL RIGHT ANGLES=90 CHAMFER ANGLES=5 3. DIMENSIONS GIVEN IN INCHES CONCENTRICITY=0.010 T.I.R. DESIGN CTQ CLASSIFICATION OF CHARACTERISTIS (CRITICAL) (MAJOR) REVIEW: DATE: REVDESCRIPTION ECODATEBY DESCRIPTION FINISH MATERIAL: ENG. APPROVED SOURCESOURCE PART NO. A 07/18/15TF The polyester label and acrylic permanent adhesive will last over 10 years which is beyond the lifetime of the devices. Vent label dimensions and location Control hub label dimensions and location Wall sensor ring label dimensions and location MAC: XX:XX:XX:XX:XX:XX Model: SH1 barcode 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. FCC ID 2AFTLSH1 Contains FCC ID: XFFZ357PA20 Contains IC: 8365A-Z357PA20 Contains FCC ID: Z64-WL18SBMOD Contains IC: 451I-WL18SBMOD FCC ID 2AFTLSS1 Model: SS1 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. barcode 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. Model: SV1 FCC ID 2AFTLSV1 barcode Secure ID: XXXXXXXX SerNo: EVWWYYnnnnn SerNo: EVWWYYnnnnn SerNo: EVWWYYnnnnn 1.24” 2.24” 1” 1” 1.2” 1.33” barcode Vent label dimensionsControl hub label dimensions Wall sensor ring label dimensions

Prediction of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 where:S = power density P = power input to the antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna Maximum peak output power at the antenna terminal:9.70(dBm) Maximum peak output power at the antenna terminal:9.332543008(mW) Antenna gain(typical):-2(dBi) Maximum antenna gain:0.630957344(numeric) Prediction distance:20(cm) Prediction frequency:915(MHz) MPE limit for uncontrolled exposure at prediction frequency:0.6(mW/cm^2) Power density at prediction frequency:0.001171(mW/cm^2) Maximum allowable antenna gain:25.09421106(dBi) 2 4 R PG S p =

Curtis-Straus LLC is accredited by the American Association for Laboratory Accreditation for the specific scope of accreditation under Certificate Number 1627-01. This report may contain data which is not covered by the A2LA accreditation. ____________________________________________________________ Curtis-Straus LLC, a wholly owned subsidiary of BV CPS One Distribution Center Circle, #1  Littleton, MA  TEL (978) 486-8880  FAX (978) 486-8828 page 1 of 21 Test Report Curtis-Straus LLC, a wholly owned subsidiary of BV CPS Report No EP2231-3 Client ecoVent Robert Kim Address 24 Cambridge St, Suite 6 Charlestown, MA 02129 Phone (857) 204-4466 Items tested VENT FCC ID 2AFTLSV1 FRN 0024870743 Equipment Type Part 15.247 Digitally Modulated Equipment Code DTS FCC/IC Rule Parts 47 CFR 15.247, RSS-247 Issue 1 Test Dates August 14, 27 and September 4, 2015 Results As detailed within this report Prepared by Tuyen A. Truong – Test Engineer Authorized by Christopher Reynolds – EMC Supervisor Issue Date 9/22/2015 Conditions of Issue This Test Report is issued subject to the conditions stated in the ‘Conditions of Testing’ section on page 23 of this report. Test Report for ecoVent  Report No. EP2231-3 September 22, 2015 ______________________________________________________________________ ____________________________________________________________ Curtis-Straus LLC, a wholly owned subsidiary of BV CPS One Distribution Center Circle, #1  Littleton, MA  TEL (978) 486-8880  FAX (978) 486-8828 page 2 of 21 Contents Contents .................................................................................................................................. 2 Summary ................................................................................................................................. 3 Test Methodology .................................................................................................................... 4 Product Tested - Configuration Documentation ....................................................................... 5 Statement of Conformity .......................................................................................................... 6 Test Results ............................................................................................................................ 7 Bandwidth ............................................................................................................................ 7 Fundamental Emission Output Power .................................................................................. 9 Radiated Spurious Emissions ............................................................................................ 11 Power Spectral Density ...................................................................................................... 14 AC Line Conducted Emissions ........................................................................................... 16 Occupied Bandwidth .......................................................................................................... 17 Measurement Uncertainty .................................................................................................. 19 Conditions Of Testing ............................................................................................................ 20 Form Final Report REV 7-20-07 (DW) Test Report for ecoVent  Report No. EP2231-3 September 22, 2015 ______________________________________________________________________ Issue No. Reason for change Date Issued 1 Original Release November 4, 2015 _____________________________________________________________ Curtis-Straus LLC, a wholly owned subsidiary of BV CPS One Distribution Center Circle, #1  Littleton, MA  TEL (978) 486-8880  FAX (978) 486-8828 page 3 of 21 Summary This test report supports an application for certification of a transmitter operating pursuant to 47 CFR 15.247. The product is the VENT. It is a digitally modulated transmitter that operates at 915MHz. Product was tested with an on board antenna with a gain of -2dBi. We found that the product met the above requirements without modification. The test sample was received in good condition. Test Report for ecoVent  Report No. EP2231-3 September 22, 2015 ______________________________________________________________________ _____________________________________________________________ Curtis-Straus LLC, a wholly owned subsidiary of BV CPS One Distribution Center Circle, #1  Littleton, MA  TEL (978) 486-8880  FAX (978) 486-8828 page 4 of 21 Test Methodology Radiated emission testing were performed according to DTS guidance document 558074D01 v03r03 specified in FCC Guidance for performing compliance measurement on DTS operating under section 15.247, April 19, 2013 and ANSI C63.10 (2009). Radiated Emissions were maximized by rotating the device around its axes as well as varying the test antenna’s height and polarity. The device antenna was not maximized separately. Conducted emissions at the antenna port were not performed since the EUT antenna has an integral antenna. AC Main conducted emission was not performed with a 50Ω/50μH since the EUT is battery powered. Operating channel frequency = 915MHz The following bandwidths were used during radiated spurious and line conducted emissions. Frequency RBW VBW 0.15-30MHz 9kHz 30kHz 30-1000MHz 120kHz 1MHz 1-10GHz 1MHz 3MHz Test Report for ecoVent  Report No. EP2231-3 September 22, 2015 ______________________________________________________________________ _____________________________________________________________ Curtis-Straus LLC, a wholly owned subsidiary of BV CPS One Distribution Center Circle, #1  Littleton, MA  TEL (978) 486-8880  FAX (978) 486-8828 page 5 of 21 Product Tested - Configuration Documentation EUT Configuration Work Order: P2231 Company: ecoVent Company Address: 24 Cambridge St, Suite 6 Charlestown, MA, 02129 Contact: Robert Kim MN PN SN EUT: SV1 701-0000…

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EMI Radiated X – Orientation Y – Orientation