SECURUS/Hardware/Light sensor

LoRaWAN light sensors for lighting monitoring

Light sensors measure brightness at a defined point. Some provide lux readings; others report light or dark against a threshold. SECURUS shows histories and reports unusual conditions according to your rules.

Milesight EM500-LGT, outdoor light sensor
Milesight

EM500-LGT

Outdoor light sensor

Robust sensor with a separate light probe, for outdoor areas, roofs, parking lots and greenhouses.

Measuring range
0–100,000 lx, ±3 %
Cable
3 m to the light probe
Data storage
1,000 readings
Power supply
Battery, 1 × 19,000 mAh (ER34615)
Battery life
up to 10 years (10-min interval)
Protection rating
Transmitter IP67, light probe IP65
Mounting
Pole, wall or DIN rail
Technical datasheet (PDF)
Milesight WS202, indoor light sensor with motion detector
Milesight

WS202

Indoor light sensor with motion detector

Detects motion in the room and measures whether it is light or dark, for example to report lights left on in empty rooms.

Detection
PIR, up to 8 m, 120° horizontal, 100° vertical
Light
light/dark by adjustable threshold (1–60,000 lx)
Power supply
Battery, 1 × 1,650 mAh (ER14335)
Battery life
up to 4.2 years (30-min interval, 30 triggers per day)
Protection rating
IP30
Dimensions
50 × 50 × 23.8 mm
Mounting
Screws or adhesive pad
Technical datasheet (PDF)

Technical data according to the manufacturer's datasheet, battery life under the stated conditions. All devices shown transmit via LoRaWAN. In addition to these examples, we also use LoRaWAN devices from other manufacturers depending on requirements.

Choose lux measurement or light/dark detection

Location is crucial for lighting monitoring: daylight, lamps and shading all affect readings. First decide whether you need to assess overall room lighting or brightness on a particular surface.

Relevant use cases
FAQ

Sensor selection questions

Does every light sensor provide lux readings?

No. Some models only report light or dark. The measurement needed determines selection.

Which device is right for you?

We select the right device with you, integrate it into SECURUS and deliver it ready for use.