HID 40KTKS-00-019V5C vs Ubiquiti UA-G3-FLEX-B: Specification Comparison
Both the HID SIGNO 40KTKS-00-019V5C and the Ubiquiti UA-G3-FLEX-B are wired access control keypad readers designed for credential-based entry management. The HID unit is a multi-technology keypad reader terminal supporting a broad range of smart card credentials with OSDP communication, while the Ubiquiti unit is a PoE-powered NFC/Bluetooth keypad reader tied to the UniFi Access ecosystem. Buyers evaluating either product are selecting a wall-mounted keypad reader for access control — a directly comparable decision point for installers and IT security teams.
In This Guide
- Which reader supports the credential types and communication protocols already in your access control infrastructure?
- How do the two readers differ in power method, wiring requirements, and environmental suitability?
- What keypad, security, and management capabilities differentiate these two readers for high-security or enterprise deployments?
- Which should you choose: the 40KTKS-00-019V5C or the UA-G3-FLEX-B?
- Side-by-Side Specs
- FAQ
Which reader supports the credential types and communication protocols already in your access control infrastructure?
The HID 40KTKS-00-019V5C supports HID Mobile Access, iCLASS SR, iCLASS SE, Seos, and MIFARE DESFire EV1/EV2 SIO, protected by Elite keysets (ICE2084) encryption across all credential types. It communicates via OSDP v1 at 9600 baud, which enables supervised wiring into a wide range of third-party access control panels that support the OSDP standard. NFC and BLE management interfaces allow field configuration without physical reconfiguration or rewiring.
The Ubiquiti UA-G3-FLEX-B supports NFC, Bluetooth 4.1, Mifare cards and keyfobs, Apple Touch Pass, and PIN keypad entry. It connects via a single RJ45 Ethernet port to a UniFi Access controller — it is not an OSDP device and does not integrate with third-party access control panels via a standard reader protocol. Mobile unlock is supported on iOS and Android via NFC. No encryption keyset specification is provided in the available specs.
For sites already running HID credentials, iCLASS cards, or OSDP-compatible panels, the 40KTKS-00-019V5C is the clear fit. For sites standardized on Ubiquiti UniFi Access as the access control platform and seeking Apple Touch Pass support, the UA-G3-FLEX-B is the designated reader. These two devices are not interchangeable at the panel level.
How do the two readers differ in power method, wiring requirements, and environmental suitability?
The HID 40KTKS-00-019V5C is a wired reader with no PoE specification provided in the available specs. It is available in black or white with a silver trim baseplate. No operating temperature range, IP rating, or outdoor certification is listed in the provided specifications, so environmental suitability cannot be confirmed from spec data alone.
The Ubiquiti UA-G3-FLEX-B is powered by PoE 802.3af at 5W over a single 10/100 Mbps RJ45 port, with a voltage input range of 44–57V DC. This eliminates the need for a separate power run to the reader location. It is rated for outdoor use with an operating temperature of -30 to 60°C, and its enclosure is polycarbonate, glass, and aluminium alloy. It carries CE, FCC, IC, UL 294, and CAN/ULC-60839-11-1 certifications and is marked NDAA compliant.
The UA-G3-FLEX-B holds a clear advantage in documented environmental and power specifications: a defined operating temperature range, outdoor rating, UL 294 listing, and PoE-simplified wiring. The 40KTKS-00-019V5C's installation and environmental specs are not provided in the available data, so a direct numeric comparison cannot be made.
What keypad, security, and management capabilities differentiate these two readers for high-security or enterprise deployments?
The HID 40KTKS-00-019V5C features a 3×4 keypad layout with red backlight, 13-character PIN support, audible feedback, tamper detection, velocity check, and anti-passback. These are explicitly listed security features in the provided specifications. Management is handled via NFC and BLE interfaces, enabling field configuration without rewiring.
The Ubiquiti UA-G3-FLEX-B features a 12-button capacitive keypad. No PIN character length limit, tamper detection, velocity check, or anti-passback capability is specified in the available data. Management is handled through the UniFi Access application ('Application Access' per spec). The reader weighs 0.4 lb.
The 40KTKS-00-019V5C lists explicit enterprise security features — tamper detection, velocity check, anti-passback, and 13-char PIN — that are absent from the UA-G3-FLEX-B's provided specifications. Buyers requiring those specific security controls at the reader level should note that only the HID unit documents them. The UA-G3-FLEX-B's capacitive keypad and app-based management suit deployments that manage security policy centrally through the UniFi Access controller.
Which should you choose: the 40KTKS-00-019V5C or the UA-G3-FLEX-B?
Our take: The 40KTKS-00-019V5C is the stronger choice when your deployment requires broad multi-technology credential support, OSDP panel integration, and documented reader-level security controls. It reads six credential families (iCLASS SR/SE, Seos, MIFARE DESFire EV1/EV2, HID Mobile Access) versus the UA-G3-FLEX-B's NFC, Bluetooth 4.1, Mifare, and Apple Touch Pass — a meaningfully wider legacy card estate. The 40KTKS-00-019V5C also explicitly documents tamper detection, velocity check, anti-passback, and 13-character PIN support; none of these are listed for the UA-G3-FLEX-B. Conversely, the UA-G3-FLEX-B documents a -30 to 60°C operating range, UL 294 certification, NDAA compliance, and PoE 802.3af at 5W — specs the HID unit does not provide in available data. Choose the UA-G3-FLEX-B for outdoor, NDAA-sensitive, or pure UniFi Access deployments where single-cable PoE and Apple Touch Pass are priorities.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | HID 40KTKS-00-019V5C | Ubiquiti UA-G3-FLEX-B |
|---|---|---|
| Product Type | Keypad Reader Terminal | NFC Keypad Reader |
| Keypad Layout | 3×4 | 12-button capacitive |
| PIN Length Support | 13 characters | — |
| Keypad Backlight | Red backlight | — |
| Credential Types | iCLASS SR/SE, Seos, MIFARE DESFire EV1/EV2, HID Mobile Access | NFC, Bluetooth 4.1, Mifare, Apple Touch Pass, PIN |
| Mobile Access | HID Mobile Access (NFC/BLE) | iOS & Android NFC, Apple Touch Pass |
| Communication Protocol | OSDP v1 at 9600 baud | Wired Ethernet to UniFi controller |
| Encryption | Elite keysets (ICE2084) | — |
| Power Method | — | PoE 802.3af, 5W |
| Network Port | — | (1) 10/100 Mbps RJ45 |
| Operating Temperature | — | -30 to 60°C |
| Environmental Rating | — | Outdoor / Weatherproof |
| Enclosure Material | — | Polycarbonate, glass, aluminium alloy |
| Certifications | — | CE, FCC, IC, UL 294, CAN/ULC-60839-11-1 |
| NDAA Compliant | — | Yes |
| Warranty | 2-year | Manufacturer Warranty (duration not specified) |
Frequently Asked Questions
Which should you choose: the 40KTKS-00-019V5C or the UA-G3-FLEX-B?
The 40KTKS-00-019V5C is the stronger choice when your deployment requires broad multi-technology credential support, OSDP panel integration, and documented reader-level security controls. It reads six credential families (iCLASS SR/SE, Seos, MIFARE DESFire EV1/EV2, HID Mobile Access) versus the UA-G3-FLEX-B's NFC, Bluetooth 4.1, Mifare, and Apple Touch Pass — a meaningfully wider legacy card estate. The 40KTKS-00-019V5C also explicitly documents tamper detection, velocity check, anti-passback, and 13-character PIN support; none of these are listed for the UA-G3-FLEX-B. Conversely, the UA-G3-FLEX-B documents a -30 to 60°C operating range, UL 294 certification, NDAA compliance, and PoE 802.3af at 5W — specs the HID unit does not provide in available data. Choose the UA-G3-FLEX-B for outdoor, NDAA-sensitive, or pure UniFi Access deployments where single-cable PoE and Apple Touch Pass are priorities.
Is the HID 40KTKS-00-019V5C or the Ubiquiti UA-G3-FLEX-B better for multi-site enterprise deployments with mixed card types?
The HID 40KTKS-00-019V5C is the better fit for mixed-credential enterprise environments. It reads iCLASS SR, iCLASS SE, Seos, MIFARE DESFire EV1/EV2, and HID Mobile Access from a single unit and communicates via OSDP v1, which allows integration with a wide range of third-party access control panels. The UA-G3-FLEX-B is tied to the Ubiquiti UniFi Access controller ecosystem and does not provide an OSDP interface, limiting its use to sites standardized on that platform.
Can the Ubiquiti UA-G3-FLEX-B be used outdoors, and is there equivalent data for the HID 40KTKS-00-019V5C?
Yes — the UA-G3-FLEX-B is explicitly rated for outdoor use with an operating temperature of -30 to 60°C and carries UL 294 and CAN/ULC-60839-11-1 certifications. Its enclosure combines polycarbonate, glass, and aluminium alloy. The HID 40KTKS-00-019V5C's provided specifications do not include an operating temperature range, IP or NEMA rating, or outdoor suitability statement, so a direct comparison cannot be made from available spec data.
Which reader is easier to wire and power at a new door location?
The Ubiquiti UA-G3-FLEX-B requires only a single Cat5e/Cat6 Ethernet run — it is powered by PoE 802.3af at 5W, so no separate power supply or conduit is needed at the reader. The HID 40KTKS-00-019V5C's power method and wiring requirements are not specified in the available data, so a comparative wiring-complexity assessment cannot be made. Installers should consult the HID datasheet for voltage and current draw specifications before planning rough-in.
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