Finder 18.91.8.230.0042 – 18 Series PIR movement and presence detectors

Why Choose the Finder 18.91.8.230.0042 PIR Movement Detector?

The Finder 18.91.8.230.0042 is a compact anthracite grey passive infrared (PIR) movement detector designed for automatic indoor lighting control. Part of the Finder 18 Series, this recessed wall-mounted sensor detects movement and automatically switches connected lighting, making it suitable for corridors, staircases, bathrooms and other areas where convenient, energy-efficient illumination is required.

Operating from a nominal 230 V AC, 50/60 Hz supply, the Finder 18.91 features a solid-state TRIAC output rated for lighting loads up to 200 W at 230 V AC. Its PIR detection system provides a coverage angle of approximately 110° and a maximum detection distance of 7 m, supporting effective movement detection in indoor passageways and occupied spaces.

The Finder 18.91.8.230.0042 offers an adjustable switch-off delay of 10 seconds to 20 minutes and an ambient light threshold adjustable from 5 to 500 lx. An additional external push-button connection enables manual activation of the lighting output. Its ultra-compact lens and compatibility with selected modular wall-switch systems make it particularly suitable for discreet integration into modern electrical installations.

Key Advantages

• Automatic PIR movement detection provides convenient hands-free lighting control.
• 110° detection angle offers effective coverage for corridors and indoor spaces.
• Detection range up to 7 m supports common residential and commercial applications.
• Adjustable 10-second to 20-minute switch-off delay allows lighting duration to be tailored to the installation.
• Adjustable 5–500 lx ambient light threshold helps avoid unnecessary lighting operation.
• 200 W TRIAC output supports compatible LED and other lighting loads.
• External push-button input provides an additional method of activating connected lighting.
• Anthracite grey finish complements modern modular wall-switch accessories.
• Ultra-compact lens provides a discreet appearance.
• Compatible with selected AVE, BTicino, Gewiss, Simon Urmet and Vimar switch systems.
• Low standby power consumption supports energy-conscious installations.
• Suitable for recessed mounting in compatible electrical wall boxes.

Key Features

• Finder 18 Series PIR movement detector.
• Model 18.91.8.230.0042.
• Anthracite grey housing and front cover.
• Passive infrared movement detection technology.
• Designed for indoor recessed wall mounting.
• 230 V AC nominal supply.
• 50/60 Hz operating frequency.
• Solid-state TRIAC switching output.
• 200 W lighting load capability at 230 V AC.
• 110° maximum detection angle.
• 7 m maximum detection distance.
• 10-second to 20-minute adjustable switch-off delay.
• 5–500 lx adjustable ambient light threshold.
• Integrated ambient light sensing.
• Optional external push-button activation.
• Motion detection maintains the output during continued movement.
• Ultra-compact, low-profile PIR detection lens.
• Front-accessible timing and light-threshold adjustments.
• Compatible modular wall-switch adaptors.
• IP20 protection rating.
• −10 to +50 °C operating temperature range.

Automatic Lighting Control with Adjustable PIR Detection

The Finder 18.91.8.230.0042 uses passive infrared technology to detect movement within its sensing area. When movement is detected and the ambient lighting conditions satisfy the selected threshold, the detector activates its solid-state TRIAC output to switch the connected lighting. The output remains active while qualifying movement continues, with the adjustable switch-off delay determining how long the lighting remains on after movement ceases.

Two front-accessible adjustment controls allow installers to configure the switch-off delay between 10 seconds and 20 minutes and the ambient light threshold between 5 and 500 lx. The external push-button input provides an additional means of activating the output for the configured duration, making the detector suitable for areas where both automatic and manual lighting control are useful. Its recessed mounting design and anthracite finish allow discreet integration with compatible modular wall-switch accessories.

Typical Applications

• Residential hallway and corridor lighting.
• Staircase and landing illumination.
• Bathroom and washroom lighting automation.
• Apartment entrance lighting.
• Commercial office corridors.
• Hotel corridors and circulation areas.
• Utility room and storage area lighting.
• Indoor passageways and access routes.
• Small meeting rooms and ancillary spaces.
• Energy-efficient LED lighting installations.
• Lighting systems requiring automatic and manual activation.
• Residential electrical refurbishment projects.
• Modular wall-switch installations.
• Commercial building lighting upgrades.