FCC ID 2A6F9-S4024B
Lennox S40 Smart Thermostat
by Lennox industries inc.
Grantee Code: 2A6F9 Product Code: S4024B
Latest application date: 2025-06-20
FCC ID Device Details
| FCC ID | 2A6F9-S4024B |
|---|---|
| Mirrors | fcc.id | gov | fccid.ai |
| Grantee Code | 2A6F9 |
| Product Code | S4024B |
| Applicant Business | Lennox industries inc. 🇺🇸 |
| Related Domains |  lennoxintl.com |
| Equipment Class | Lennox S40 Smart Thermostat |
| Test Firm | CETECOM Inc. |
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 5180-5240 MHz | Original Equipment | 2025-06-20 |
| 2402-2480 MHz | Original Equipment | 2025-06-20 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| User Manual | Users Manual | 2025-12-17 | PDF 4.2 MB |
| Photos Internal | Internal Photos | 2025-12-17 | PDF 1.1 MB |
| Photos External | External Photos | 2025-12-17 | PDF 485 KB |
| Label Info | ID Label/Location Info | 2025-06-20 | PDF 114.2 KB |
| Label Info | ID Label/Location Info | 2025-06-20 | PDF 101.6 KB |
| Lable Info | ID Label/Location Info | 2025-06-20 | PDF 114.2 KB |
| Lable Info | ID Label/Location Info | 2025-06-20 | PDF 101.6 KB |
| Test Setup Photos | Test Setup Photos | 2025-12-17 | PDF 1.8 MB |
| Test Setup Photos | Test Setup Photos | 2025-12-17 | PDF 1.8 MB |
| TR Antenna BLE | Test Report | 2025-06-20 | PDF 478.6 KB |
| TR Antenna Info | Test Report | 2025-06-20 | PDF 772.4 KB |
| TR Antenna WLAN | Test Report | 2025-06-20 | PDF 772.4 KB |
| Test Report BLE Mod | Test Report | 2025-06-20 | PDF 857.2 KB |
| Test Report BLE RE Device | Test Report | 2025-06-20 | PDF 1.6 MB |
| Test Report Mod 2WLAN4 | Test Report | 2025-06-20 | PDF 2.9 MB |
| Test Report Mod Wlan | Test Report | 2025-06-20 | PDF 5.2 MB |
| Test Report RE Device WLAN NII-1 | Test Report | 2025-06-20 | PDF 1.8 MB |
| Test Report RE WLAN2-4 | Test Report | 2025-06-20 | PDF 1.7 MB |
| Attestation 2.911-1 | Attestation Statements | 2025-06-20 | PDF 420.4 KB |
| Attestation 2.911-2 | Attestation Statements | 2025-06-20 | PDF 776.6 KB |
| Attestation Statment LOA-Anti D | Attestation Statements | 2025-06-20 | PDF 456.9 KB |
| Cover Letter Extra sign | Cover Letter(s) | 2025-06-20 | PDF 81.7 KB |
| Cover Letter Module conducted | Cover Letter(s) | 2025-06-20 | PDF 415.5 KB |
| Cover Letter Module conducted reuse | Cover Letter(s) | 2025-06-20 | PDF 415.5 KB |
| Cover Letter Sigs | Cover Letter(s) | 2025-06-20 | PDF 81.7 KB |
| FCC Confidentiality STC | Cover Letter(s) | 2025-06-20 | PDF 557.9 KB |
| FFCC Confidentiality LTC | Cover Letter(s) | 2025-06-20 | PDF 548.8 KB |
| RF Exposure Information | RF Exposure Info | 2025-06-20 | PDF 711.1 KB |
| Block Diagram Metadata only | Block Diagram | PDF 117.3 KB | |
| Schematics Metadata only | Schematics | PDF 3.6 MB | |
| Op Description Metadata only | Operational Description | PDF 445.4 KB | |
| Part List Metadata only | Parts List/Tune Up Info | PDF 66.1 KB | |
| Parts List Metadata only | Parts List/Tune Up Info | PDF 66.1 KB |
Application Information
| Application ID | tV6+c6klNvm/Rxb0Pkidkg== |
|---|---|
| Final Action Date | 2025-06-20 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0032225567 |
| Model | S4024B |
| Frequency Range | 5180-5240 MHz |
| Equipment Class | NII - Unlicensed National Information Infrastructure TX |
| Device Description | Lennox S40 Smart Thermostat |
| Responsible Party | Julia Cokmez, Hardware Engineering Manager, julia.cokmez@lennoxintl.com , 9724977080 |
| Test Firm | Meinolf Glunz, CETECOM Inc., meinolf.glunz@cetecom.com  , 408-586-6301 |
| TCB Email | james.donnellan@cetecom.com |
| TCB Scope | A4: UNII devices & low power transmitters using spread spectrum techniques |
| Short-Term Confidentiality | Yes |
| Short-Term Confidentiality Date | 12/17/2025 |
| Long-Term Confidentiality | Yes |
| Grant Deferral | No |
| Modular Equipment | Does not apply |
| Composite Device | Yes |
| Composite Part | No |
| Cognitive Radio | No |
| Authorization Waiver | No |
| Authorization Waiver Approved | No |
| Section 5301 Certification | Yes |
| Related OET Knowledge DataBase Inquiry | No |
| Grant Comments | The power output listed is conducted to the antenna. The device must not be co-located or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures. The RF exposure compliance is addressed for 1.1310 and 2.1091. This filing complies with KDB 447498 and is approved for mobile/fixed operation. End users are to be provided with transmitter operation conditions for satisfying RF exposure compliance. |
Applications
| Application ID | Date | Purpose |
|---|---|---|
| tV6+c6klNvm/Rxb0Pkidkg== | 2025-06-20 | Original Equipment |
| DgYCwxseu9Kg1Yo8K5pDOg== | 2025-06-20 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application tV6+c6klNvm/Rxb0Pkidkg==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
CETECOM Inc. 411 Dixon Landing Road Milpitas, CA 95035 |
Date of Grant: 06/20/2025 Application Dated: 06/20/2025 |
| Lennox industries inc. |
| 1600 Metrocrest Dr. |
| Carrollton, TX 75006 |
| Attention: Julia Cokmez , Hardware Engineering Manager |
| NOT TRANSFERABLE |
| EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
| FCC IDENTIFIER: | 2A6F9-S4024B |
| Name of Grantee: | Lennox industries inc. |
| Equipment Class: | Unlicensed National Information Infrastructure TX |
| Notes: | Lennox S40 Smart Thermostat |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15E | 5180.0 - 5240.0 | 0.0617 |
| The power output listed is conducted to the antenna. The device must not be co-located or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures. The RF exposure compliance is addressed for 1.1310 and 2.1091. This filing complies with KDB 447498 and is approved for mobile/fixed operation. End users are to be provided with transmitter operation conditions for satisfying RF exposure compliance. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application DgYCwxseu9Kg1Yo8K5pDOg==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
CETECOM Inc. 411 Dixon Landing Road Milpitas, CA 95035 |
Date of Grant: 06/20/2025 Application Dated: 06/20/2025 |
| Lennox industries inc. |
| 1600 Metrocrest Dr. |
| Carrollton, TX 75006 |
| Attention: Julia Cokmez , Hardware Engineering Manager |
| NOT TRANSFERABLE |
| EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
| FCC IDENTIFIER: | 2A6F9-S4024B |
| Name of Grantee: | Lennox industries inc. |
| Equipment Class: | Digital Transmission System |
| Notes: | Lennox S40 Smart Thermostat |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2412.0 - 2462.0 | 0.378 | ||
| CC | 15C | 2402.0 - 2480.0 | 0.099 |
| The power output listed is peak conducted to the antenna. The device must not be co-located or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi-transmitter product procedures. The RF exposure compliance is addressed for 1.1310 and 2.1091. This filing complies with KDB 447498 and is approved for mobile/fixed operation. End Users to be provided with transmitter operation conditions for satisfying RF exposure compliance. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |