NexaKey K2 Full Specifications
| Specification | Details |
|---|---|
| Brand | NexaKey |
| Model | K2 |
| Product Type | No-Touch Exit Button |
| Detection Method | Infrared sensor |
| Operation | Contactless activation |
| Indicator | LED status indicator |
| Output Contacts | NO / NC / COM, as listed for the relevant version |
| Input Voltage | DC 12V ±10%, commonly listed |
| Dimensions | Approximately 86 × 86 × 29 mm, version-dependent |
| Installation | Surface or flush mount, depending on supplied version |
| Application | Compatible access control door systems |
| Country Of Origin | China |
|
Warranty
|
1 Year |
NexaKey K2 No Touch Exit Button
The NexaKey K2 No Touch Exit Button is designed to provide convenient, contactless door release for compatible access control installations. Instead of pressing a conventional mechanical exit switch, users can activate its infrared sensor by moving a hand close to the detection area.
This touchless operation can be useful in offices, retail shops, commercial buildings and other locations where people frequently pass through controlled doors. The NexaKey K2 also features an LED status indicator to provide visual feedback during operation.
Infrared Touchless Door Release
The NexaKey K2 uses infrared sensing to detect a hand near the sensor. When activated, its output contacts signal the compatible access control system to release the door, depending on the wiring and system configuration.
Because users do not need to touch a physical button, this type of exit switch can help reduce contact with shared surfaces. Actual sensing distance and response depend on the installed model and environment.
LED Status Indicator
The built-in LED indicator provides a visual indication of the switch’s operating status. This can help users identify the sensor area and understand when the device has been activated.
LED colours and their meanings can vary by version, so confirm the indicator behaviour on the actual unit.
Access Control System Compatibility
The NexaKey K2 is an exit switch accessory, not a complete access control system. It can be used with compatible access control panels, door controllers and electric locking arrangements.
Before installation, check the controller input requirements, output contact configuration and wiring diagram. The required power supply, electric lock, controller and other accessories may need to be purchased separately.
Applications of NexaKey K2
The NexaKey K2 may be suitable for:
- Office doors and staff exit points
- Retail shops and commercial premises
- Residential access control installations
- Schools and educational buildings
- Other compatible controlled-door systems
For outdoor or wet-area installations, check the device’s actual protection rating and installation requirements before use.
Why Choose the NexaKey K2 No Touch Exit Button?
The NexaKey K2 offers a practical touchless exit option for compatible access control systems. Its infrared activation, LED indicator and compact form make it worth considering for doors where convenient contactless operation is preferred.
Before purchasing, confirm the exact version, power requirements, output contacts, mounting type, warranty and compatibility with your existing door controller.
FAQ:
What is the NexaKey K2 No Touch Exit Button?
The NexaKey K2 is an infrared sensor-based exit switch that allows users to activate a compatible door release system without physically touching a button.
How does the NexaKey K2 work?
It detects a hand near its infrared sensor and activates its output contacts to signal the connected door controller or locking system.
Does the NexaKey K2 require a power supply?
Yes. It is commonly listed with a DC 12V ±10% input. Confirm the requirements of your exact model before connecting power.
Can the NexaKey K2 work with an electric door lock?
It can work with a compatible access control system and electric lock when correctly wired. The lock and controller requirements depend on the installation.
What do NO, NC and COM mean?
These are relay contact terminals: Normally Open (NO), Normally Closed (NC) and Common (COM). Their use depends on the door controller’s wiring requirements.
Is the NexaKey K2 a fingerprint or RFID reader?
No. It is a touchless exit switch that uses infrared sensing, not fingerprint or RFID authentication.
Where can the NexaKey K2 be used?
It can be used at compatible controlled doors in offices, shops, commercial buildings and residential properties.



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