Chemical
Ammonium
- Turner Designs - Field Fluorometer - 10AU
See "Fluorescence" - Turner Designs - Benchtop Fluorometer - TD700
See "Fluorescence" - Turner Designs - Handheld Fluorometer - Aquafluor
See "Fluorescence"
Dissolved Oxygen
Aanderaa – Optical Oxygen Sensor – Optode 3830/3930/3975
Exhibits very good resistance to fouling and is usable in fresh through to saline waters. Rated to 6000m. Options include: 3830 RS232 output version (concentration, saturation and temperature), 3930 (extended housing) Aanderaa SR10 output version (concentration/saturation and temperature) and 3975 (extended housing) analogue output version (concentration/saturation and temperature). Available as a stand alone sensor or for addition to Aanderaa systems and the SAIV SD204.
NEW Shallow Water Optode 3835/4130/4175
Specifications as above but with reduced depth rating for coastal, lake or river use. Rated to 300m.
Methane
Contros – Underwater Hydrocarbon Sensor - HydroC
Submersible instrument measuring hydrocarbons (typical range 100nmol/l – 50 µmol/l). Standard depth rating is 2000m with 6000m available as an option. Suitable for in situ measurements or OEM integration to landers, profilers, ROVs etc. Wide variety of data outputs available.
pH
Aanderaa – Sensor - 3264
pH electrode with 30-second response time. Range 2 to 11pH. Depth rated to 100m.
Redox
Aanderaa - Oxidase Redox Potential meter - 3840
Enclosed in a robust protective shell . Depth rated to 160m with a range of +/- 1000mV. Rapid 30 second response.