mFL-12

Unattended above-water fluorescence measurements in a 1.75 kg instrument

The mFL-12 is installed above the water for unattended fluorescence measurements at user-defined intervals. A modulated 405 nm source and a 400–880 nm receiver separate the laser-induced signal from ambient light, allowing operation by day or night. Measurements can be transmitted to the Microsensor Viewer for processing, quality control, and review. The instrument is at TRL 7–8 and was field-tested during ESA's PHY2FLEX campaign in Venice in 2025.

Open datasheet (PDF) View specifications

Measures

Measurement channels

The receiver separates each reported parameter by its optical process and its position in the return spectrum

mFL-12, excitation and return bands across the 400–880 nm reception window

Chlorophyll-a and CDOM

Estimates chlorophyll-a and CDOM concentration from a fixed or moving surface platform

Process: Active LIF (ON/OFF)
Band: 405 / 685 nm

Total suspended matter

Estimates total suspended matter at outfalls, river mouths, port basins, and monitoring stations

Process: Active LIF (ON/OFF)
Band: 405 nm excitation

Petroleum

Detects surface films and oil-in-water emulsions from an above-water installation

Process: Above-water active LIF
Band: 405 nm excitation

Ambient-light rejection

Alternating laser-on and laser-off measurements isolates the fluorescence signal for day-and-night operation

Process: ON/OFF sunlight rejection

Platforms

Compatible deployment platforms

Mounting and integration are specified for the instrument and survey method

Moored buoy

Long-duration above-water installation

Telemetry with a configurable duty cycle

Pier / bridge

Fixed above-water installation

Unattended operation on mains or battery power

Vessel

Deck or rail installation

Measurements underway or on station

USV

Deck-mounted payload

Uncrewed transect measurements

Fixed coastal station

Permanent above-water installation

Long-term monitoring in exposed conditions

Datasheet

Specifications

Open datasheet (PDF)

Optical

Excitation

405 nm, single, modulated

Reception

hyperspectral, 400–880 nm, 288 bands

Spectral resolution

12 nm

Detection rate

up to 1 Hz, ambient-light dependent

Detector FOV

1°

Electronics

ADC

12-bit

Integration time

270 µs – 1 s

Comms

RS485 / Wi-Fi / 4G/5G

Internal logging

up to 512 GB

Position

GPS + IMU

Context

integrated camera

Mechanical

Protection

IP68, marine-grade

Size / mass

130 × 140 × 121 mm, 1.75 kg

Electrical

Power

12 V DC, 12 W peak, optional solar panel

Contact

Discuss a mFL-12 deployment

The engineering team handles quotations, mounting requirements, and integration questions

info@lifelidar.com +33 7 80 72 60 72 Sophia Antipolis, Valbonne, France