In-situ Marine Optics
  • IMG 2889




Submersible hyperspectral radiometers designed to measure either Radiance (L) or Irradiance (E), above water or below.



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  • Enhanced sensitivity 256 channel silicon photodiode array spectrometer
  • Integrated RTC, Tilt and optional depth)
  • NIST traceable calibration
  • Internal calibration coefficient storage
  • User specified raw or calibrated output
  • Automatic integration time
  •  Real-time dark current compensation
  • Rapid, sequential measurements up to 5Hz


DetectorsZeiss MMS1 UV-VIS NIR enh. spectrometers
Wavelength range305 – 1150 nm. (Calibrated range: 380 – 900 nm)
Spectral resolution10 nm (3.3 nm pixel spacing)
Radiance channel (L)Fused silica optical window
5° degree Field-of-View
Irradiance Channel (E)PTFE Diffuser
Cosine error: <3% (0 – 60°), <10% (60 – 87.5°)
CalibrationNIST traceable radiometric calibration
Acquisition16 bit ADC
Sampling RateUp to 5 Hz
Integration time1 – 6000 ms (User defined or automatic)
ProtocolRS-232 @ 115,200 bps
Integrated sensorsTilt, Detector Temperature and Pressure (optional)
Power requirements7 – 28 VDC
Power consumption150 mA @ 12 VDC
ConnectorsMicro WET-CON MCBH6M
Length285 mm
Diameter67 mm
Weight1 kg in-air
MaterialsAcetal, SS316, PTFE or Fused silica
Depth rating300 m
Operating Temperature-10 to +50 °C



USSIMOview is GUI program that allows users to easily configure and display real-time USSIMO data via serial communication.

Contact Sales to download the latest version.

For Microsoft Windows platforms.