General
Other bus systems	None
Model	Movement sensor
Mounting method	Flush mounted (plaster)
Material	Plastic
Material quality	Thermoplastic
Surface protection	Lacquered
Surface finishing	Matt
Colour	Grey
Optimum mounting height	1.1 m
Max. transmission range sideways	6 m
Max. transmission range frontally	10 m
Detection angle vertical	180 °
Bus system KNX
Bus system KNX radio
Bus system radio frequent
Bus system LON
Bus system Powernet
Radio frequent bidirectional
Transparent
Bus connection included
Substation input
Creep-under protection
Operation mode switch
Animal zone
Staircase monitoring
Response value luminosity adjustable
Teach-function for response value luminosity
Switch-off delay self-learning

The motion sensor head 1.10 m standard for KNX by Gira, type 2040015, is a flush-mounted motion sensor for indoor use in system 55. It is designed for automatic room monitoring and motion detection in intelligent building control systems based on the KNX bus system. The device is mounted on a bus coupler 3 and is finished in grey matte (lacquered), with the surface made of thermoplastic. The mounting height is up to 1.10 m, enabling optimal detection of movements in living and office spaces.

Applications

The sensor is designed for use in residential and office buildings, particularly in areas where automatic lighting control or room monitoring is required. The integrated stairwell monitoring enables use in corridors, stairwells, and similar areas where continuous motion detection is beneficial. The function for monitoring human movement, for example in assisted living or senior residences, is supported by the ability to output the time elapsed since the last movement via a communication object onto the KNX bus.

Functions and Equipment in Detail

Detection is achieved via an 180° detection angle, with a maximum range of up to 32 m frontally and up to 19 m to each side. An integrated brightness sensor measures ambient light levels in the range of approximately 1 to 1000 lx. When used in watch mode, the brightness is evaluated to switch off lighting when a predefined threshold is exceeded. The number of motion pulses within a monitoring period is projectable, allowing flexible adaptation to different requirements.

Technology Explained Simply

Motion detection is based on passive infrared (PIR) technology, which detects the thermal radiation of moving objects. Digital signal evaluation ensures precise and interference-free detection. Configuration is done via a function block, which can be set for applications such as watch", "watch with switch-off brightness", or "sensor. Two output communication objects enable the transmission of switching and control commands to the KNX bus. The operating mode (OFF / AUTO / ON) can be switched during operation via on-site control or via communication objects on other sensors. A walk test function supports the planning and adjustment of the detection area.

Compatibility and Accessories

The device is designed exclusively for the KNX bus system (medium TP256) and requires mounting on a bus coupler 3. It is not suitable for other bus systems such as KNX radio, radio bus, LON, or Powernet. Configuration is done via KNX system software, with functions such as switching, dimming value transmitter, scene substation, temperature value transmitter, brightness value transmitter, operating mode switching, and switching with forced position available. Sensitivity adjustment is done via a control knob on the device, and motion detection can be displayed continuously or only during walk test.

Mounting and Installation

Installation is done flush-mounted on a bus coupler 3. The optimal mounting height is 1.10 m, with maximum range and detection angle influencing the positioning planning. Installation requires integration into a KNX network, with configuration done via the corresponding system software. The IP20 protection rating makes the device suitable for indoor use, with ambient temperature between -5 °C and +45 °C.

Advantages in Operation

The sensor enables flexible and adaptable room monitoring with integrated brightness control. The ability to change the operating mode during operation increases flexibility in use. The projectable number of motion pulses and the output of time since last movement expand application possibilities in monitoring systems. Digital PIR detection ensures reliable and interference-free motion detection.