Standard ranges are 100 NTU, 400 NTU, 1,000 NTU, and 3,000 NTU and custom ranges are available. Digital outputs (SDI-12 and/or RS232) are also available in other versions of ANALITE turbidity probes.

The ANALITE NEP-9500 probes use 90° optics and employs infrared light in accordance with ISO7027. All probes use a unique modulation technique that ensures almost total rejection of ambient light conditions as well as a unique microprocessor that controls differential sample and hold the circuit for enhanced performance, particularly at low turbidity levels.

The standard ANALITE NEP-9500 series of probes, with its Acetal housing, may be submerged to a depth of 50 meters (approx. 150 feet). An optional stainless steel housing is available for applications where a greater depth rating is required but not recommended for deployment in salty or acidic water where crevice corrosion may occur. Its depth rating is 100 meters.