SECO-LARM SK-B241-PQ ENFORCER Bluetooth Mullion Keypad with Prox
The SK-B241-PQ is the slim mullion version of the SECO-LARM Bluetooth keypad/proximity controller family. It is commonly used beside narrow door frames, pedestrian gate posts, storefront frames, and controlled entries where a standard single-gang keypad is too wide. The keypad, prox reader, Bluetooth management, request-to-exit input, door sensor input, tamper output, and relay output are built into one device, so it can serve as the local controller for many simple access points. The most important compatibility checks are power, lock or gate input style, EM 125 kHz credential use, and whether the job requires a standalone Bluetooth controller instead of a reader tied to a separate access-control panel.
Compatible With
- Low-voltage door access control applications using an electric strike, maglock, door release, or relay-controlled input within rating
- Gate operators with an appropriate low-voltage open or access input when wired through the correct relay terminals
- Request-to-exit buttons and door sensor inputs supported by the controller wiring
- SECO-LARM SL Access app administration within Bluetooth range
- EM 125 kHz proximity credentials such as compatible SECO-LARM PR-K1K1-AQ keyfobs and PR-K1S1-A cards when prox is used
- Not a cloud access system, not a Wiegand reader output for every third-party access panel unless specifically supported by the model
- Narrow mullion, post, or frame mounting where a slim keypad is needed
- Related Bluetooth controller models: SK-B141-PQ, SK-B111-PQ, SK-B941-PQ, PR-B1124-PQ, PR-B9124-P1
Features and Specifications
| Manufacturer | SECO-LARM |
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| Product Type | Bluetooth mullion keypad with prox |
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| Part Number | SK-B241-PQ |
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| Application | Outdoor or protected access-control keypad installations |
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| Operating Voltage | 9-25 VDC |
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| Output | Form C relay, 2.0A at 30 VDC |
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| Proximity Technology | EM 125 kHz |
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| IP Rating | IP65 weather-resistant |
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| Enclosure Material | Zinc alloy |
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| Dimensions | 1-3/4 in x 6 in x 7/8 in |
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| Programming | SL Access app over Bluetooth |
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Also Known As / Related Part Numbers
Technician Note
This is a standalone Bluetooth access controller, not just a passive reader. If the site already has a multi-door access-control panel, verify whether a standalone relay controller or a Wiegand-style reader is actually required.
Before Ordering Checklist
- Confirm mullion-style dimensions fit the mounting surface.
- Confirm 9-25 VDC power and lock power design.
- Confirm the access point can be controlled through the Form C relay output.
- Confirm EM 125 kHz cards or fobs are desired.
- Confirm Bluetooth app administration is acceptable for the property.
Professional Advisory
For gate and door access installations, keep all required egress devices, fire/life-safety devices, and gate entrapment protection in place. A keypad should never be wired to defeat required safety functions.
Product Questions and Answers
Why choose the SK-B241-PQ instead of SK-B141-PQ?
Choose SK-B241-PQ when a narrow mullion-style housing is needed. SK-B141-PQ uses a wider single-gang style housing.
Is the SK-B241-PQ weather resistant?
Yes. It is listed as an IP65 weather-resistant model, but it still needs proper mounting, cable entry protection, and low-voltage wiring practices.
What credentials does the reader accept?
It uses EM 125 kHz proximity credentials, so card and fob type must match that technology.
Can it control a gate operator?
It can trigger a compatible low-voltage gate access input through its relay when installed correctly.
Does it connect to the internet?
No. It is managed locally over Bluetooth through the SL Access app rather than through a cloud connection.
