The Efento Bluetooth Low Energy Wireless Illuminance Logger is a light meter that measures light intensity as perceived by the human eye. Thanks to its precise spectral response and strong IR rejection, the sensor accurately measures visible light, regardless of the light source.
With the free mobile app you configure the sensor, read out data from memory, generate reports and set alarm thresholds. Add an Efento Gateway and Efento Cloud to set up a complete remote real-time monitoring system.
Key features
Measuring range: 0.01 to 83,000 lux
IR filtering: >99% IR rejection, matched to the human eye
Memory: 40,000 readings, automatically overwriting the oldest data
Measurement period: adjustable from 1 minute to 10 days
Battery life: up to 5 years maintenance-free on replaceable AA batteries (3× AA, 6300 mAh) or via a USB 5V 1000 mAh rechargeable battery
Efento Cloud: real-time monitoring, alarm notifications, reporting and analysis
Easy installation: configuration via smartphone within 15 minutes
Range: up to 100 m in open space (LOS), 20–30 m indoors
Integration: standard protocols for connecting to any cloud platform or mobile application
Technical specifications
Light sensor:
Measuring range: 0.01 lux – 83,000 lux
IR filtering: >99% (typical), matched to the human eye
Radio module:
Bluetooth Low Energy (BLE), 2.4 GHz, transmit power 2.5 mW (4 dBm)
Communicatiestandaard: Bluetooth Smart (BLE 4.0)
Transmissie-interval: 1 s
Battery:
3× AA, 6300 mAh (replaceable) or USB 5V 1000 mAh rechargeable
Lifespan: up to 5 years
Dimensions & weight: 124 × 60 × 26 mm, 0.15 kg
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