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* Image for representation only — actual product may varyLight Sensor
Ambient Brightness in Lux · Battery · Zigbee
In Stock
A small battery sensor that reports how bright a room actually is, in lux, so lighting rules stop running on the clock and start running on daylight. It is what turns "switch the hall light on at 6 PM" into "switch it on when the hall drops below 100 lux" — earlier on a dark monsoon afternoon, later in May. Third-party Zigbee hardware integrated into Nexomatic: it joins our own coordinator, so no vendor cloud sits in the control path.
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✓ Ambient light, 0–1000 lux · ✓ Zigbee 3.0 — joins the Nexomatic hub · ✓ 2 × AAA, batteries not included · ✓ 71 × 25 × 24 mm · SKU: NX-LUX-001
Specifications
Full Technical Specifications
MeasuresAmbient light, 0–1000 lux
ProtocolZigbee 3.0 — joins the Nexomatic hub
Power2 × AAA, batteries not included
Size71 × 25 × 24 mm
Operating Temp-10°C to +50°C
Humidity10–95% RH, non-condensing
MountingAdhesive or screw, indoor
RulesRun on the hub — survive an ISP outage
Pairs WithDimmers · curtains · presence sensors
Product Details
What's Inside
- Hall and porch lights: Switch on when the room is actually dark, not at a fixed time.
- Dimmers: Hold a steady brightness as the afternoon fades.
- Curtains: Close on strong afternoon sun in a west-facing room, open when it drops.
- Corridors: Combine with a presence sensor so lights stay off on a bright afternoon.
- Offices and hotels: Run lighting on daylight, room by room.
SKU: NX-LUX-001
Category: Sensors
Setup Process
How It Works
1
Fit the Batteries
Insert 2 × AAA cells. Batteries are not included.
2
Join the Hub
Pair the Light Sensor with your Nexomatic hub over Zigbee.
3
Mount It
Stick or screw it indoors where the brightness matters — the reading spot, the hall, the west-facing room.
4
Set a Lux Threshold
In the app, write rules such as switching the hall light on below 100 lux, or feed the level into a dimmer or curtain.
Key Features
Built for Indian Homes
Daylight, Not the Clock
A timer switches the light on at the same moment in December and June. A lux threshold switches it on when the room is actually dark.
Dimming That Tracks the Sky
Feed the level into the dimmer and the room holds a steady brightness as the afternoon fades, instead of stepping at fixed times.
Curtains on Light
Close the curtains when the west-facing room takes the afternoon sun, open them when it drops — the same rule that keeps the AC from fighting the glazing.
Better Occupancy Rules
Paired with a presence sensor the rule becomes occupied AND dark, which is what stops corridor lights burning through a bright afternoon.
Our Own Zigbee Mesh
It joins the Nexomatic coordinator rather than a vendor gateway, so the readings and the rules stay on your own hardware.
Battery, No Wiring
Two AAA cells and an adhesive pad. Put it where the light matters — the reading spot, not the switchboard.
Integrations
Smart Home Platform Integration.
Light Sensor is controlled from the Nexomatic app. Android is available now as a direct download; iOS is coming soon.
Download
Nexomatic App
Stay Connected – Download the App
Control it from your phone. Android available now as a direct download; iOS is coming soon.
DOWNLOAD FOR
Android · APK
iOS
Coming soon
Where this is used
The same hardware, configured for what the building does. See how it is deployed:
Also Consider
Related Products
Frequently asked questions
Does the Light Sensor need the hub?
Yes. It joins the Nexomatic hub over Zigbee 3.0, and its rules run on the hub.
Is it battery powered?
Yes. It takes 2 × AAA batteries, which are not included.
Does it work without the internet?
Yes. Its rules run on the hub and survive an ISP outage.
What range does it measure?
Ambient light from 0 to 1000 lux.
Can I use it outdoors?
It is specified for indoor mounting, from -10°C to +50°C and 10–95% RH non-condensing.
What does the Light Sensor cost?
Pricing is quoted per site, based on the rooms and devices you need. Contact us for a quote.
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