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Knightsbridge OS0026W mmWave Occupancy Sensor - White Surface/Recess Mount

£2799
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Knightsbridge OS0026W is a 93mm diameter mmWave radar occupancy sensor that mounts either surface-fixed or recessed into a ceiling or wall, controlling lighting loads up to 1000W LED or 2000W incandescent. The mmWave radar technology detects micro-movements including breathing and typing, providing higher sensitivity than passive infrared sensors that require larger body movement to trigger.

Designed for offices, corridors, commercial spaces and residential rooms where hands-free lighting control is needed, the sensor offers 360° detection when ceiling-mounted and 180° coverage when wall-mounted. Detection range, time delay and ambient light sensitivity are all adjustable via dials on the sensor body: range scales from 25% to 100% of the maximum detection radius, time delay adjusts from 10 seconds to 15 minutes, and the light sensor can be set to prevent activation during daylight hours.

The white polycarbonate housing measures 93mm diameter with a 36mm projection when surface-mounted, or 28mm recess depth when fitted into a ceiling void. The sensor operates on 230V 50Hz mains and carries IP20 ingress protection for indoor dry locations. Operating temperature range is -20°C to +40°C, making it suitable for unheated storage areas and server rooms as well as standard commercial and residential environments.

Specification
Length 93mm
Height 36mm
Width 93mm
Diameter 93mm
Projection 36°
Recessed Depth 28mm
Construction Polycarbonate
Finish White
Class II
IP Rating IP20
Primary Voltage 230V 50Hz
Downloads

Product Specification Sheet

Frequently Asked

What's the difference between mmWave and PIR sensors?

mmWave radar detects micro-movements like breathing and typing, whereas passive infrared (PIR) sensors require larger body movement to trigger. This makes mmWave more sensitive and less likely to switch lights off when someone is working at a desk or sitting still.

Can the detection range be adjusted?

Yes. The sensor has three adjustment dials: detection range scales from 25% to 100% of maximum radius, time delay adjusts from 10 seconds to 15 minutes, and ambient light sensitivity can be set to prevent activation during daylight.

What load can it control?

The sensor supports up to 1000W LED or 2000W incandescent lighting load on a 230V 50Hz mains circuit. For higher loads, pair the sensor with a contactor or relay.

Is it suitable for bathrooms?

The sensor carries IP20 ingress protection, which is suitable for indoor dry locations but not for bathroom zones where splash protection is required. Install outside bathroom zones or use an IP44-rated alternative for wet areas.

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 OS0026W is a 93mm diameter mmWave radar occupancy sensor that mounts either surface-fixed or recessed into a ceiling or wall, controlling lighting loads up to 1000W LED or 2000W incandescent. The mmWave radar technology detects micro-movements including breathing and typing, providing higher sensitivity than passive infrared sensors that require larger body movement to trigger.

    Designed for offices, corridors, commercial spaces and residential rooms where hands-free lighting control is needed, the sensor offers 360° detection when ceiling-mounted and 180° coverage when wall-mounted. Detection range, time delay and ambient light sensitivity are all adjustable via dials on the sensor body: range scales from 25% to 100% of the maximum detection radius, time delay adjusts from 10 seconds to 15 minutes, and the light sensor can be set to prevent activation during daylight hours.

    The white polycarbonate housing measures 93mm diameter with a 36mm projection when surface-mounted, or 28mm recess depth when fitted into a ceiling void. The sensor operates on 230V 50Hz mains and carries IP20 ingress protection for indoor dry locations. Operating temperature range is -20°C to +40°C, making it suitable for unheated storage areas and server rooms as well as standard commercial and residential environments.

    Specification
    Length 93mm
    Height 36mm
    Width 93mm
    Diameter 93mm
    Projection 36°
    Recessed Depth 28mm
    Construction Polycarbonate
    Finish White
    Class II
    IP Rating IP20
    Primary Voltage 230V 50Hz
    Downloads

    Product Specification Sheet

    Frequently Asked

    What's the difference between mmWave and PIR sensors?

    mmWave radar detects micro-movements like breathing and typing, whereas passive infrared (PIR) sensors require larger body movement to trigger. This makes mmWave more sensitive and less likely to switch lights off when someone is working at a desk or sitting still.

    Can the detection range be adjusted?

    Yes. The sensor has three adjustment dials: detection range scales from 25% to 100% of maximum radius, time delay adjusts from 10 seconds to 15 minutes, and ambient light sensitivity can be set to prevent activation during daylight.

    What load can it control?

    The sensor supports up to 1000W LED or 2000W incandescent lighting load on a 230V 50Hz mains circuit. For higher loads, pair the sensor with a contactor or relay.

    Is it suitable for bathrooms?

    The sensor carries IP20 ingress protection, which is suitable for indoor dry locations but not for bathroom zones where splash protection is required. Install outside bathroom zones or use an IP44-rated alternative for wet areas.

    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.