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120° PIR Sensor Module with Override 50x50mm - Black

£1899
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Knightsbridge 120° PIR sensor module is a 50x50mm passive infrared motion detector designed to fit euro modular grid frames. The module detects movement within a 120° arc up to 5 metres away and automatically switches connected lighting on when motion is detected under low ambient light conditions. An override button on the face allows manual switching from AUTO mode to constant ON when extended lighting is needed.

Designed for residential hallways, en-suites, utility rooms and commercial washrooms where hands-free lighting control reduces energy waste, the module operates on 230V mains and handles loads up to 100W LED or 200W incandescent. The fixed three-minute timer switches the light off after the last detected movement, while the fixed lux threshold ensures the sensor only activates in low-light conditions, preventing operation during daylight hours.

The module fits a 47mm minimum back box depth and slots into any compatible 50x50mm euro modular grid system. The black polycarbonate face sits flush with the surrounding faceplate once installed. The sensor lens is recessed into the face, reducing the risk of accidental contact or damage. Live and neutral wiring connects to screw terminals on the rear of the module, with clearly marked connections for load switching. The Class II construction requires no earth connection.

Specification
Height 50 mm
Width 50 mm
Recessed Depth 40 mm
Min. Mounting Box Depth 47mm
Construction Polycarbonate
Finish Black
Class II
IP Rating IP20
Primary Voltage 230V 50Hz
Warranty 2
Downloads

Product Specification Sheet

Frequently Asked

What does the override button do?

The override button switches the module from AUTO mode (where it activates on detected motion) to constant ON. This is useful when you need continuous lighting for an extended period without triggering the motion sensor repeatedly. The module returns to AUTO mode after the pre-set timer expires.

Can the timer or lux threshold be adjusted?

No. The three-minute timer and lux threshold are factory-set and cannot be adjusted in the field. The sensor will only activate when ambient light falls below the fixed threshold, preventing operation during daylight.

What faceplate is needed?

The module requires a compatible euro modular grid faceplate that accepts 50x50mm modules. Knightsbridge produces grid plates in various finishes and gang configurations. The faceplate is sold separately and must be matched to the number of modules being installed in the same back box.

Is it suitable for bathroom installation?

The IP20 rating means the module is only protected against solid objects larger than 12.5mm and has no water ingress protection. It can be used in bathrooms outside the designated zones (typically Zone 0, 1, and 2), but not within reach of a shower or bath enclosure.

Shipping & Returns

Free worldwide delivery

Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

Returns

30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.

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    Description

    The Knightsbridge 120° PIR sensor module is a 50x50mm passive infrared motion detector designed to fit euro modular grid frames. The module detects movement within a 120° arc up to 5 metres away and automatically switches connected lighting on when motion is detected under low ambient light conditions. An override button on the face allows manual switching from AUTO mode to constant ON when extended lighting is needed.

    Designed for residential hallways, en-suites, utility rooms and commercial washrooms where hands-free lighting control reduces energy waste, the module operates on 230V mains and handles loads up to 100W LED or 200W incandescent. The fixed three-minute timer switches the light off after the last detected movement, while the fixed lux threshold ensures the sensor only activates in low-light conditions, preventing operation during daylight hours.

    The module fits a 47mm minimum back box depth and slots into any compatible 50x50mm euro modular grid system. The black polycarbonate face sits flush with the surrounding faceplate once installed. The sensor lens is recessed into the face, reducing the risk of accidental contact or damage. Live and neutral wiring connects to screw terminals on the rear of the module, with clearly marked connections for load switching. The Class II construction requires no earth connection.

    Specification
    Height 50 mm
    Width 50 mm
    Recessed Depth 40 mm
    Min. Mounting Box Depth 47mm
    Construction Polycarbonate
    Finish Black
    Class II
    IP Rating IP20
    Primary Voltage 230V 50Hz
    Warranty 2
    Downloads

    Product Specification Sheet

    Frequently Asked

    What does the override button do?

    The override button switches the module from AUTO mode (where it activates on detected motion) to constant ON. This is useful when you need continuous lighting for an extended period without triggering the motion sensor repeatedly. The module returns to AUTO mode after the pre-set timer expires.

    Can the timer or lux threshold be adjusted?

    No. The three-minute timer and lux threshold are factory-set and cannot be adjusted in the field. The sensor will only activate when ambient light falls below the fixed threshold, preventing operation during daylight.

    What faceplate is needed?

    The module requires a compatible euro modular grid faceplate that accepts 50x50mm modules. Knightsbridge produces grid plates in various finishes and gang configurations. The faceplate is sold separately and must be matched to the number of modules being installed in the same back box.

    Is it suitable for bathroom installation?

    The IP20 rating means the module is only protected against solid objects larger than 12.5mm and has no water ingress protection. It can be used in bathrooms outside the designated zones (typically Zone 0, 1, and 2), but not within reach of a shower or bath enclosure.

    Shipping & Returns

    Free worldwide delivery

    Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

    Returns

    30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.