WaLRUS II Hyperspectral Radiometer Buoy

Mechanical	Main Spar Diameter: 18.7 cm (8.4") Length: 148 cm (59") Weight in air: 25 kg (55 lbs)
Optical	Calibrated wavelength range: 340nm to 860nm Spectral bandwidth: 2.4 nm (0.4nm pixel resolution)
Electrical	Internal rechargeable batteries provide up to 12 hours of continuous operation Optional external power supply:  9V to 15V, 450 mA max (5 spectrometers) Connector: MCBH4M, right-angle
Environmental	Maximum Depth: 100 m Operating Temperature: 0 to 35 C
Data Logging	Nonvolatile storage of more than 200,000 full spectra Calibration can be applied to data by the WaLRUS II, or externally on PC Variable, programmable sampling rates Variable integration time: 20ms to 30 seconds per sample Sampling controlled by real-time clock or software command