HID 921NWNTEKE00BN vs Kantech KT-SG-MT-KP2: Specification Comparison
Both the HID RK40 iClass SE Multiclass Reader (921NWNTEKE00BN) and the Kantech KT-SG-MT-KP2 are wired access control readers designed for card-based entry systems, and a buyer evaluating a door-reader upgrade or new deployment would reasonably cross-shop them. The comparison centers on three decision-critical axes for this product class: credential technology and protocol support, physical form factor and environmental ratings, and integration interface and encryption capabilities.
In This Guide
- Which reader supports the credential types and output protocols already in your access control infrastructure?
- How do the two readers differ in physical form factor, mounting, and environmental suitability?
- Which reader offers stronger integration flexibility and on-reader security for modern access control platforms?
- Which should you choose: the 921NWNTEKE00BN or the KT-SG-MT-KP2?
- Side-by-Side Specs
- FAQ
Which reader supports the credential types and output protocols already in your access control infrastructure?
The HID 921NWNTEKE00BN is purpose-built around HID's iCLASS SE ecosystem. It reads iCLASS, iCLASS SE, and HF migration credentials, plus it accepts legacy Low-Frequency credentials (noted as disabled by default), giving integrators a phased migration path from older card stock to SE-class cards. Its sole output protocol is Wiegand with an 8-bit format, 100µs pulse width, and 1,000µs spacing—a specification that maps directly to the Wiegand interface on virtually any legacy access control panel without panel-side reconfiguration.
The Kantech KT-SG-MT-KP2 takes a broader multi-technology stance. It reads simultaneously on two RF frequencies: 13.56 MHz (covering MIFARE Plus EV1, ISO/IEC 14443A, ISO/IEC 14443B, and NFC) and 125 kHz (covering HID Proximity and ioProx). Output protocols include OSDP, Wiegand, and RS-485, giving installers a choice between the modern, bidirectional OSDP bus and the legacy Wiegand interface. The KT-SG-MT-KP2 also adds AES-256 encryption at the reader level—no equivalent encryption specification is stated for the 921NWNTEKE00BN. The integrated numeric keypad on the KT-SG-MT-KP2 enables PIN-plus-card two-factor authentication at the door without adding a separate keypad device; the 921NWNTEKE00BN's keypad availability is listed ambiguously across multiple conflicting values in the provided spec data and cannot be confirmed as present on this specific SKU.
How do the two readers differ in physical form factor, mounting, and environmental suitability?
The HID 921NWNTEKE00BN is rated IP65, confirming protection against dust ingress and low-pressure water jets. This makes it suitable for outdoor entry points, covered parking structures, and light-industrial environments where moisture or airborne particulates are concerns. Its enclosure is described as a black hardened housing with a silver trim baseplate. No physical dimensions or weight are provided in the supplied specifications.
The Kantech KT-SG-MT-KP2 is specified as a single-gang wall-mount form factor with dimensions of 115.8 mm × 44.6 mm × 24.7 mm and a weight of 0.45 lb. It is designed for standard single-gang electrical boxes and supports both North American and European mullion mounting patterns. No IP ingress protection rating is stated in the provided specifications for the KT-SG-MT-KP2, which is a meaningful gap when evaluating outdoor or harsh-environment suitability. The 921NWNTEKE00BN's IP65 rating is a clear differentiator for exposed installations; the KT-SG-MT-KP2's suitability for such environments cannot be confirmed from the available data.
Which reader offers stronger integration flexibility and on-reader security for modern access control platforms?
The HID 921NWNTEKE00BN communicates exclusively via Wiegand. Wiegand is a one-way, unencrypted protocol—the reader sends a credential number to the panel but receives no return data, and no reader-level encryption is specified. This limits its use to panels with a Wiegand input, and it does not support OSDP-based remote reader management, firmware updates over the bus, or tamper reporting via the data line. It does provide door completion signaling, enabling direct electromagnetic lock control at the reader without a separate relay module.
The Kantech KT-SG-MT-KP2 supports OSDP in addition to Wiegand and RS-485. OSDP (Open Supervised Device Protocol) is a bidirectional, supervised interface that allows the host panel to monitor reader tamper status, deliver firmware updates, and exchange encrypted messages. The stated AES-256 encryption applies at the reader-to-panel communication layer, addressing eavesdropping and relay-attack vectors that Wiegand cannot mitigate. Input voltage is specified at 5 VDC; no power consumption figure or PoE support is stated. The 921NWNTEKE00BN's supply voltage is not listed in the provided specifications.
Which should you choose: the 921NWNTEKE00BN or the KT-SG-MT-KP2?
Our take: The KT-SG-MT-KP2 is the stronger choice when the deployment requires dual-frequency credential flexibility, AES-256 encrypted OSDP communication, or an integrated keypad for two-factor authentication in a compact single-gang footprint. Concretely: the KT-SG-MT-KP2 reads both 13.56 MHz and 125 kHz simultaneously versus the 921NWNTEKE00BN's iCLASS/HF-only stack; it adds AES-256 encryption and OSDP bidirectional supervision where the 921NWNTEKE00BN is Wiegand-only with no stated encryption; and it includes a built-in numeric keypad versus the 921NWNTEKE00BN's ambiguous keypad specification. Conversely, the 921NWNTEKE00BN is the stronger choice for outdoor or harsh-environment deployments where IP65 ingress protection is required—no IP rating is stated for the KT-SG-MT-KP2—and for HID iCLASS SE migration programs on existing Wiegand panels. Platform qualifier: the KT-SG-MT-KP2 pairs naturally with Kantech EntraPass or any OSDP-capable panel; the 921NWNTEKE00BN suits HID-centric iCLASS SE deployments on legacy Wiegand infrastructure.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | HID 921NWNTEKE00BN | Kantech KT-SG-MT-KP2 |
|---|---|---|
| Product Type | Access Control Reader | Access Control Reader with Keypad |
| Reader Technology | iCLASS SE, HF Migration, Low-Frequency (disabled) | MIFARE Plus EV1, ISO 14443A/B, HID Proximity, ioProx, NFC |
| RF Frequencies | 13.56 MHz (HF); 125 kHz (disabled) | 13.56 MHz + 125 kHz (simultaneous) |
| Output Protocol | Wiegand (8-bit, 100µs pulse, 1000µs spacing) | OSDP, Wiegand, RS-485 |
| Encryption | — | AES-256 |
| Integrated Keypad | Not confirmed for this SKU | Yes (numeric) |
| IP Rating | IP65 | — |
| Form Factor | Wall-mount, hardened housing | Single-gang, mullion mount |
| Dimensions | — | 115.8 mm × 44.6 mm × 24.7 mm |
| Weight | — | 0.45 lb |
| Input Voltage | — | 5 VDC |
| Mounting Standard | — | North America / Europe single gang |
| Country of Origin | — | US |
| Warranty | 2 years | Lifetime |
| Connectivity | Wired | Wired |
| Color / Finish | Black with silver trim baseplate | — |
Frequently Asked Questions
Which should you choose: the 921NWNTEKE00BN or the KT-SG-MT-KP2?
The KT-SG-MT-KP2 is the stronger choice when the deployment requires dual-frequency credential flexibility, AES-256 encrypted OSDP communication, or an integrated keypad for two-factor authentication in a compact single-gang footprint. Concretely: the KT-SG-MT-KP2 reads both 13.56 MHz and 125 kHz simultaneously versus the 921NWNTEKE00BN's iCLASS/HF-only stack; it adds AES-256 encryption and OSDP bidirectional supervision where the 921NWNTEKE00BN is Wiegand-only with no stated encryption; and it includes a built-in numeric keypad versus the 921NWNTEKE00BN's ambiguous keypad specification. Conversely, the 921NWNTEKE00BN is the stronger choice for outdoor or harsh-environment deployments where IP65 ingress protection is required—no IP rating is stated for the KT-SG-MT-KP2—and for HID iCLASS SE migration programs on existing Wiegand panels. Platform qualifier: the KT-SG-MT-KP2 pairs naturally with Kantech EntraPass or any OSDP-capable panel; the 921NWNTEKE00BN suits HID-centric iCLASS SE deployments on legacy Wiegand infrastructure.
Is the HID 921NWNTEKE00BN or the Kantech KT-SG-MT-KP2 better for a site that still runs legacy HID Proximity cards alongside newer MIFARE cards?
The KT-SG-MT-KP2 is better suited for that scenario. It reads both 125 kHz HID Proximity and 13.56 MHz MIFARE cards simultaneously from a single reader. The 921NWNTEKE00BN supports iCLASS and HF migration credentials but its 125 kHz low-frequency support is listed as disabled by default, and there is no mention of MIFARE compatibility in the provided specifications.
Can either reader be used on an outdoor gate or exterior door in a wet or dusty environment?
The HID 921NWNTEKE00BN carries an IP65 rating, confirming resistance to dust and low-pressure water jets, making it a confirmed choice for outdoor use. The Kantech KT-SG-MT-KP2 does not have an IP ingress protection rating stated in the available specifications, so its suitability for outdoor or wet environments cannot be confirmed from the data provided.
Which reader supports two-factor authentication (card plus PIN) without adding a separate keypad module?
The Kantech KT-SG-MT-KP2 includes an integrated numeric keypad in its single-gang form factor, enabling card-plus-PIN two-factor authentication at the door without a separate device. The HID 921NWNTEKE00BN's keypad availability is listed with conflicting values in the provided specifications for this SKU and cannot be confirmed as included without consulting HID's official datasheet for this specific part number.
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