FCC ID 2AK5B-L3
Luther
by DOOR Systems, Inc.
Grantee Code: 2AK5B Product Code: L3
Latest application date: 2026-09-29
FCC ID Device Details
Operating Frequencies
| Frequency Range | Application Purpose | Final Action Date |
|---|---|---|
| 910.3 MHz | Original Equipment | 2026-09-29 |
| 2402-2480 MHz | Original Equipment | 2026-09-29 |
Exhibits
| Document | Type | Available | File |
|---|---|---|---|
| ID Label Location Info | ID Label/Location Info | 2026-09-29 | PDF 82.8 KB |
| Antenna Information Test Report | Test Report | 2026-09-29 | PDF 211.9 KB |
| Test Report FCC | Test Report | 2026-09-29 | PDF 2.8 MB |
| Test Report RF exposure | RF Exposure Info | 2026-09-29 | PDF 507.3 KB |
| Authorization Letter | Attestation Statements | 2026-09-29 | PDF 187.3 KB |
| FCC 2.911(d)(5) Covered List Attestation | Attestation Statements | 2026-09-29 | PDF 212.2 KB |
| FCC 2.911(d)(7) Agent for Service Attestation | Attestation Statements | 2026-09-29 | PDF 272.7 KB |
| Confidentiality Request Letter | Cover Letter(s) | 2026-09-29 | PDF 343.8 KB |
| Cover Letter | Cover Letter(s) | 2026-09-29 | PDF 125 KB |
| Users Manual Metadata only | Users Manual | 2026-12-28 | PDF 2.2 MB |
| Internal Photos Metadata only | Internal Photos | 2026-12-28 | PDF 1.2 MB |
| External Photos Metadata only | External Photos | 2026-12-28 | PDF 924.4 KB |
| Test Setup Photos Metadata only | Test Setup Photos | 2026-12-28 | PDF 1.6 MB |
| Block Diagram Metadata only | Block Diagram | PDF 290.6 KB | |
| Schematics Metadata only | Schematics | PDF 70.4 KB | |
| Operational Description Metadata only | Operational Description | PDF 300.2 KB | |
| Bill of Materials Metadata only | Parts List/Tune Up Info | PDF 37.1 KB |
Application Information
| Application ID | wY6cCzw0Hl2NZGgZE9DAfw== |
|---|---|
| Final Action Date | 2026-09-29 |
| Application Purpose | Original Equipment |
| Applicant FRN | 0026022848 |
| Model | L3 |
| Frequency Range | 910.3 MHz |
| Equipment Class | DXX - Part 15 Low Power Communication Device Transmitter |
| Device Description | Luther |
| Responsible Party | David Webster, david.webster@door.com  , 3142005218 |
| Non-Technical Contact | David Webster, DOOR Systems, Inc., david.webster@door.com , +1 314 200 5218 |
| Test Firm | Christian Kiermeier, Element Materials Technology Straubing GmbH, christian.kiermeier@element.com  , 49-9421-56868-0 |
| TCB Email | philip.thompson@element.com |
| TCB Scope | A1: Low Power Transmitters below 1 GHz (except Spread Spectrum), Unintentional Radiators, EAS (Part 11) & Consumer ISM devices |
| Short-Term Confidentiality | Yes |
| Long-Term Confidentiality | Yes |
| Modular Equipment | Does not apply |
| Composite Device | Yes |
| Cognitive Radio | No |
| Authorization Waiver | No |
| Authorization Waiver Approved | No |
| Section 5301 Certification | Yes |
| Related OET Knowledge DataBase Inquiry | No |
Applications
| Application ID | Date | Purpose |
|---|---|---|
| wY6cCzw0Hl2NZGgZE9DAfw== | 2026-09-29 | Original Equipment |
| aJF63a8fGbN5Ndlq4D6Y5w== | 2026-09-29 | Original Equipment |
Equipment Authorization
Grants
TCB Grant - Application wY6cCzw0Hl2NZGgZE9DAfw==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Element Materials Technology Warwick Ltd Unit 1 Pendle Place Skelmersdale, WN8 9PN United Kingdom |
Date of Grant: 09/29/2026 Application Dated: 09/25/2026 |
| DOOR Systems, Inc. |
| 1220 N. Price Road |
| Suite 2 |
| Olivette, MO 63132 |
| Attention: David Webster , Head of Hardware & Firmware |
| 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: | 2AK5B-L3 |
| Name of Grantee: | DOOR Systems, Inc. |
| Equipment Class: | Part 15 Low Power Communication Device Transmitter |
| Notes: | Luther |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 13.56 - 13.56 | |||
| CC | 15C | 910.3 - 910.3 |
| RF output power is radiated. This device is used for mobile use conditions only and as such a separation distance of 20 cm shall be maintained between the radiator and all persons at all times. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |
TCB Grant - Application aJF63a8fGbN5Ndlq4D6Y5w==
| TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
| Certification | ||
| Issued Under the Authority of the | ||
| Federal Communications Commission | ||
| By: |
|
Element Materials Technology Warwick Ltd Unit 1 Pendle Place Skelmersdale, WN8 9PN United Kingdom |
Date of Grant: 09/29/2026 Application Dated: 09/25/2026 |
| DOOR Systems, Inc. |
| 1220 N. Price Road |
| Suite 2 |
| Olivette, MO 63132 |
| Attention: David Webster , Head of Hardware & Firmware |
| 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: | 2AK5B-L3 |
| Name of Grantee: | DOOR Systems, Inc. |
| Equipment Class: | Digital Transmission System |
| Notes: | Luther |
| Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
| CC | 15C | 2402.0 - 2480.0 | 0.0019 |
| RF output power for BLE is conducted. This device is used for mobile use conditions only and as such a separation distance of 20 cm shall be maintained between the radiator and all persons at all times. |
| CC: | This device is certified pursuant to two different Part 15 rules sections. |