18.5D.8.230.0000 Finder PIR With DALI interface 110/230V
Finder 18.5D.8.230.0000 is a 110–230 V AC PIR movement and presence detector with DALI interface, daylight-linked lighting control and direct control of up to 8 DALI ECG units.
Why Choose the Finder 18.5D.8.230.0000 PIR Movement and Presence Detector?
The Finder 18.5D.8.230.0000 is an advanced PIR movement and presence detector with DALI interface designed for intelligent indoor lighting control. Part of the Finder 18 Series, it combines movement and presence sensing, ambient-light measurement and DALI lighting control to provide efficient automatic illumination in offices, classrooms, workplaces and other commercial buildings.
Operating from a 110–230 V AC, 50/60 Hz supply, the detector can directly control up to 8 DALI electronic control gear (ECG) units. It provides two detection zones when installed at approximately 3 m height: an 8 × 8 m movement zone for transit or higher-activity areas and a more sensitive 4 × 4 m presence zone for areas where occupants may remain relatively still.
Three selectable lighting-control functions provide flexibility for different environments, including daylight-linked constant light level control, ON/OFF operation with early warning, and ON/OFF operation with early warning plus courtesy lighting. An adjustable ambient-light threshold of 10–800 lx, adjustable PIR sensitivity and selectable turn-off delay from 10 s to 35 min help optimise comfort and energy efficiency.
Key Advantages
Integrated DALI interface for intelligent lighting control.
Direct control of up to 8 DALI ECG lighting ballasts.
Combined PIR movement and presence detection.
8 × 8 m movement detection zone at approximately 3 m mounting height.
4 × 4 m presence detection zone for detecting lower levels of occupant activity.
Daylight-linked constant illuminance control helps reduce unnecessary energy consumption.
Adjustable 10–800 lx ambient-light threshold.
Adjustable PIR sensitivity and selectable turn-off timing.
Multiple installation options for convenient integration into indoor ceilings.
Key Features
Finder 18 Series movement and presence detector.
DALI control interface compliant with EN 62386.
110–230 V AC, 50/60 Hz supply.
Controls a maximum of 8 DALI ECG units.
Movement detection area of 8 × 8 m at 3 m installation height.
Presence detection area of 4 × 4 m at 3 m installation height.
Adjustable ambient-light intervention threshold of 10–800 lx.
Selectable turn-off delay from 10 s to 35 min.
Adjustable PIR detection sensitivity.
Daylight-linked constant light level control.
ON/OFF lighting control with early warning.
ON/OFF control with early warning and courtesy light level.
Push-In terminals for convenient wiring.
IP40 degree of protection.
Intelligent DALI Lighting and Presence Control
The Finder 18.5D.8.230.0000 combines PIR occupancy detection with ambient-light measurement and DALI control. In its daylight-linked constant light mode, the detector can regulate artificial lighting according to both occupancy and available daylight, increasing or reducing lighting output to maintain the required illumination level while helping minimise energy consumption.
Three selectable operating strategies allow the detector to be configured for different environments. Alongside constant-light regulation, it can provide ON/OFF control with an early warning before switch-off or ON/OFF control with early warning and a courtesy light level. Its separate movement and presence zones make it suitable for both circulation areas and workplaces where occupants may remain seated for extended periods.
Indoor DALI lighting installations with up to 8 ECG units.
Technical Specifications
Voltage
230 V
Manufacturer
Finder
Series
18 Series
Model
18.5D.8.230.0000
Product type
PIR movement and presence detector
Sensor technology
Passive infrared (PIR)
Interface
DALI
DALI standard
EN 62386
Supply voltage
110–230 V AC
Supply frequency
50/60 Hz
Maximum DALI ECG units
8
Movement detection zone
8 × 8 m at 3 m mounting height
Presence detection zone
4 × 4 m at 3 m mounting height
Ambient-light threshold
10–800 lx adjustable
Turn-off delay
10 s–35 min selectable
PIR sensitivity
Adjustable
Protection rating
IP40
Operating temperature
-10 to +50 °C
Terminal type
Push-In
Installation
Indoor
Mounting options
Suspended ceiling, recessed or surface mounting
EAN
8012823407470
HS Code
85365080
Country of Manufacture
Italy
Frequently Asked Questions
What is the Finder 18.5D.8.230.0000 used for?
The Finder 18.5D.8.230.0000 is a PIR movement and presence detector with DALI interface designed for automatic and daylight-responsive indoor lighting control.
How many DALI lighting ballasts can the Finder 18.5D.8.230.0000 control?
The detector is suitable for direct control of up to 8 DALI electronic control gear (ECG) units.
What supply voltage does the Finder 18.5D.8.230.0000 require?
The detector operates from a 110–230 V AC, 50/60 Hz supply.
What detection area does this Finder PIR detector provide?
At an installation height of approximately 3 m, it provides an 8 × 8 m movement zone and a more sensitive 4 × 4 m presence zone.
Does the Finder 18.5D.8.230.0000 provide daylight-linked lighting control?
Yes. Its constant-light function can regulate DALI lighting according to occupancy and available daylight to help maintain the required illumination level while reducing unnecessary artificial lighting.
Can the switch-off delay be adjusted?
Yes. The detector provides selectable turn-off timing from approximately 10 s to 35 min, allowing operation to be matched to the application.
What is the ambient-light adjustment range?
The ambient-light intervention threshold can be adjusted between approximately 10 and 800 lx.
How can the Finder 18.5D.8.230.0000 be mounted?
The detector is designed for indoor installation and supports suspended-ceiling, recessed and surface mounting, providing flexibility for different building and lighting-control installations.
Trusted by Lighting and Building Automation Professionals
Finder 18 Series movement and presence detectors provide professional lighting-control solutions for modern buildings, combining PIR occupancy sensing, DALI integration and daylight-responsive control to improve user comfort while supporting efficient energy management.
Voltage
230 V
Manufacturer
Finder
Series
18 Series
Model
18.5D.8.230.0000
Product type
PIR movement and presence detector
Sensor technology
Passive infrared (PIR)
Interface
DALI
DALI standard
EN 62386
Supply voltage
110–230 V AC
Supply frequency
50/60 Hz
Maximum DALI ECG units
8
Movement detection zone
8 × 8 m at 3 m mounting height
Presence detection zone
4 × 4 m at 3 m mounting height
Ambient-light threshold
10–800 lx adjustable
Turn-off delay
10 s–35 min selectable
PIR sensitivity
Adjustable
Protection rating
IP40
Operating temperature
-10 to +50 °C
Terminal type
Push-In
Installation
Indoor
Mounting options
Suspended ceiling, recessed or surface mounting
EAN
8012823407470
HS Code
85365080
Country of Manufacture
Italy
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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Customers supported
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...