Finder 18.31.8.230.0031 is a recessed PIR movement and presence detector with a 120–230 V AC supply, 10 A single-pole output and adjustable 30 s to 35 min time delay for automatic lighting control.
£95.94
The Finder 18.31.8.230.0031 is a versatile passive infrared (PIR) movement and presence detector designed for automatic lighting control in commercial, industrial and building automation applications. Part of the Finder 18 Series, it combines motion detection with an integrated light-dependent sensor to switch lighting only when required.
Designed for recessed ceiling installation, the 18.31 can operate as a movement detector at mounting heights up to approximately 6 m and provides an extended detection range of up to 8 m. Its adjustable sensitivity enables the detector to be configured for different environments, making it suitable for offices, corridors, communal areas and other spaces where automatic lighting can improve convenience and energy efficiency.
With a 120–230 V AC supply, 10 A single-pole normally open output and adjustable switch-off delay from 30 s to 35 min, the Finder 18.31.8.230.0031 provides flexible automatic control for mains-powered lighting systems.
PIR movement detectors monitor changes in infrared radiation caused by people moving within their detection area. The Finder 18.31.8.230.0031 uses this technology to control connected lighting automatically, helping ensure lights operate when an area is occupied while reducing unnecessary energy consumption when spaces are vacant.
The adjustable time delay, sensitivity and light-dependent operation allow the detector to be tailored to the installation. Its recessed ceiling design and ability to operate at elevated mounting heights make it particularly useful for commercial buildings, offices, corridors and other indoor spaces requiring discreet automatic lighting control.
| Current | 10 A |
|---|---|
| Voltage | 230 V |
| Phase | Single Phase |
| Manufacturer | Finder |
| Series | 18 Series |
| Model | 18.31.8.230.0031 |
| Product type | PIR movement and presence detector |
| Sensor technology | Passive infrared (PIR) |
| Supply voltage | 120–230 V AC |
| Output configuration | SPST-NO / 1 normally open contact |
| Maximum switched current | 10 A |
| Maximum switched voltage | 230 V AC |
| Switching capacity | 2,300 VA |
| Time delay range | 30 s to 35 min |
| Maximum detection range | 8 m |
| Maximum movement detector mounting height | 6 m |
| Mounting type | Recessed ceiling mounting |
| Protection rating | IP40 |
| Operating temperature | -10 to +50 °C |
| Sensitivity | Adjustable |
| EAN | 8012823359090 |
| HS Code | 85365080 |
| Country of Manufacture | Italy |
The Finder 18.31.8.230.0031 is a PIR movement and presence detector used to control lighting automatically when movement or occupancy is detected.
The detector operates from a 120–230 V AC supply, making it suitable for common mains-powered building installations.
The 18.31.8.230.0031 has a single-pole normally open output rated up to 10 A, with a switching capacity of up to 2,300 VA.
Yes. The switch-off delay can be adjusted from approximately 30 s to 35 min to suit different occupancy and lighting requirements.
The PIR detector provides a maximum sensing range of approximately 8 m and can be used as a movement detector at ceiling heights up to approximately 6 m.
Finder 18 Series PIR detectors provide dependable movement and presence sensing for commercial and industrial lighting systems, helping installers create convenient and energy-efficient automatic lighting solutions.
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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...