Benefits and Features

Downward-facing optics avoid obstructions around the sides of the probe

Measures suspended solids and turbidity for up to 4000 NTUs

Provides a compact, low-power probe that is field proven

Stainless-steel body allows use down to 500 min fresh water

Compatible with most Campbell Scientific data loggers

Titanium body allows use down to 1500 m in fresh or salt water

Accurate and rugged

Fitted with MCBH-5-FS, wet-pluggable connector—multiple mating cable length options available

Offers an optional five-point sedimentation calibration for better measurements (see Ordering Info on the web page)

Technical Description

The OBS300 uses its downward-facing optics to emit a nearinfrared light into the water. It then measures the light that bounces back from the water's suspended particles.

If an obstruction is in the emitted light's range, the light will scatter back and the turbidity reading will be too high. This probe's downward-facing optics avoid obstructions around the sides of the probe. The OBS-3+ is available for locations that have obstructions above and below the probe. (08S” is a registered trademark of Campbell Scientific.)